Me and Two Sisters…
by WhO2

I small glimpse turns into a learning experience.

Lisa and Gary met cruising the strip. He was in college, home for the summer, while Lisa had just moved south from a small town in Michigan. She was a cute brunette with bright green eyes, but was shorter, and with a more petite figure, than he was used to. But the way she kissed him that first night, with some heat and a ton of seduction, was definitely intriguing.

'What the heck', he thought as his erection grew in his shorts while her tongue probed his mouth and her body pressed against his, '...it was just cruising and maybe a summer fling'. He'd done the girlfriend thing a couple of times, going out for months before trying anything sexual. Lisa's flirty, outgoing personality had tons of potential and was worth trying a few dates.

On their second date when he kissed her 'good night' at her front door, she ground her hips against his, her forbidden mound of pleasure pressed hard against his dick, which quickly stood at attention. He needed something -- anything -- more than a kiss and told her a previous girlfriend would let him come to her bedroom window and watch her change into her pajamas. She thought that sounded fun, and by the time he parked his car around the corner and snuck back to her window, she was naked waiting on him. She opened the window and kissed him, her naked body tempting him just inches away. After she had him ready to explode, she crawled into her bed, still naked, and waved to him as she turned off the lamp next to her bed.

On their third date they got into a hot tub at a friend's apartment complex. It was mostly dark, and they were alone, and when he teasingly tugged at the string holding her bathing suit top in place, she took it and her bottoms off. Even though she didn't have the curves he normally liked - she had an athletic build, tight butt, and nice boobs - she was very sexy naked. She was also very outgoing once the swim suit came off and never hesitated touching him or asking him to touch her. She sat in his lap facing him, and ground her pubic hair against his erection, tempting him with the possibility of being inside her. There had never been so much promise so soon after meeting someone, but his false belief that all women wanted relationships before sex prevented him from understanding what she was offering. He was aware, though, that for the first time in his life, not everything that happened between he and his sex partner had to be initiated by him.

By their second week together he knew Lisa was not going to be his typical girlfriend. There was no trying, then being rejected, then trying again, and maybe getting lucky a few days later. She wanted sex as much as he did and never hesitated to offer herself to him. By their fifth date she got naked in his car and gave him a blow job, and only the smallness of his back seat stopped them from fucking for the first time. This became especially annoying to Gary when he learned she was on the pill.

A few nights later she asked him to again come to her bedroom window. Again, she was naked when she greeted him, but this time she opened the window enough for him to crawl in. He fucked his third girlfriend for the first time, and for the first time in his life when he said "I'm about to cum", she said, "you can cum inside me."

* * * * * * * * * *

At 18, Lisa had a basic job, but she was a shift manager at the fast-food restaurant she worked at. Most of the people working for her were a few years older, but they were close enough in age that they liked to party with her. One weekend Lisa and Gary were at a party at a coworker's apartment when the subject of masturbation came up. At first, all of the six guys and three girls denied masturbating. Lisa usually enjoyed being the center of attention, but when one of her workers asked her if she did it, like everyone else she denied, denied, and denied some more. But during her answer she began stumbling over her words, and eventually the alcohol gave her extra courage - she was the first person to admit she masturbated.

This was a very different party than the ones Gary attended at college, and he couldn't believe how hot it made him hearing her tell a bunch of people he didn't know that she enjoyed self-pleasure. On the drive home, he couldn't wait to talk to her about it.

"So, you masturbate?" he asked her.

He already knew the answer from her admission at the party. Now, he wanted to get in to the details.

"You know I do," she said teasingly. "How about you?" she asked, turning his question back on him.

"Yeah, I do," he said, a little embarrassed at admitting it to her. He never admitted to doing it at the party, but it felt sexy admitting it to her. He also wanted to do whatever it took keep the discussion going on the ride home.

"I do, too..." she said again before adding, "...pretty often."

Even in the near darkness of the car, he could see her green eyes coming alive, and a smile that made him even harder than he already was.

"The first night you came to my window and saw me naked?" she continued. "I did it as soon as I turned off the light. But it wasn't the first time I did it thinking about you."

"Really?" he said a little shocked. "I would loved to have watched that! What if I told you I did it too, in my car around the corner?"

"Seriously?" she asked. "Wasn't there a mess?"

"You had me so horny I couldn't wait. I had to use my shirt to catch the mess. And definitely not the first time I did it thinking of you."

They didn't change topics during the drive to her house, and by the time they arrived they knew how long they'd both been doing it, how often, favorite places -- Gary knew more about her than either of his first girlfriends. When they got to her house, Lisa again opened her window and let Gary sneak into her bedroom for the second time. It took every ounce of his willpower to quietly fuck her with her parents less than 25 feet away -- just two interior doors separating their moans from her parent's hopefully-sleeping ears.

* * * * * * * * * *

The rest of that first summer went by very fast. They talked every night, and were together most days. Gary wasn't in love, but he was definitely in lust, and Lisa being on the pill was life-changing for a guy whose dick got hard when the wind blew. He realized how pretty she was -- dark hair, those green eyes, small, button nose, and smile with a hint of mischief -- as he spent so much time face-to-face with her, their naked bodies pressed tightly together. For the first time in his life, Gary got to have sex without condoms. He could enjoy the intense pleasure of being inside her while ejaculating. With his first girlfriends there was always the constant, frenzied panic of pulling out and then weeks of worrying if it was on time.

Gary also learned the joy of sneaking in Lisa's bedroom window and having sex in a real bed instead of the back seat of his car. She even occasionally let him fall asleep after fucking her, as long he woke up and left before her parents got up for work. At the end of the summer when it was time to head back to school, he didn't care that she didn't have a great job or that she didn't have the voluptuous body of previous girlfriends - he loved her nice, tight ass and willingness to spread her legs at any time. They were definitely in a relationship.

With his first two girlfriends Gary learned much about relationships but only the basics about sex. With Lisa, there seemed to be no limits on what they could do naked. They sometimes showered together in her parent's bathroom hoping her mom or dad didn't come home early. Watching her masturbate with her finger or vibrator was next level, but seeing her do it with the tub faucet was amazing. Any chance they got, he wanted to see her on her back in the tub, her feet in the air on either side of the faucet while a stream of warm water caressed her clit to other-worldly, leg-shaking orgasms. They skinny dipped in their pool in the middle of the day, and he learned to sit on the side of the pool with Lisa between his legs sucking his dick. He loved feeling his cum pulse into her mouth as they listened to the sounds of neighbors doing less-exciting things on the other side of their fences. Their sex lives were way beyond what they had experienced with previous partners, and Lisa even suggested doing a threesome with her friend Tracy, her copilot the night she met Gary. In their only setback, Tracy's family moved out of state before they could arrange it. It had been a nearly perfect summer.

In September, Lisa took the three-hour drive to visit Gary at college for the first time. His apartment gave them unlimited opportunities for sex, and since she never told him 'no', they made up for time apart. She taught her boyfriend what incredible foreplay it was watching her masturbate, and later that year she gave him his first (and second, and third, and...) sixty-nine. Then, in a time before digital photography, she would pose nude for him and let those pictures go through the Walmart film developing lab. That first summer and the following year at college, Gary learned more about sex than he had during three years with his first two girlfriends. He and Lisa were a couple -- a couple whose relationship could sometime be stormy, but also one where they enjoyed making up after fights.

* * * * * * * * * *

Their second summer was much like the first. Lisa was now 19, and her parents had given her more independence. Gary was home from college, and the 15-minute drive to each other's houses was much easier than the three-hour drive to or from college. Unfortunately, there was no apartment for them to use, so he and Lisa resumed their routine of having sex when her parents were at work, or him sneaking in Lisa's bedroom window late at night when they thought the feel of their naked bodies pressed tightly together was worth the risk.

But a few weeks into that summer, fortune smiled on them. Gary's parents sold their house to move to the country, and since vacant houses attracted vandals, they asked Gary to stay in it until the closing was completed. For almost a month he and Lisa had a love nest - his bed and the guest bathroom, and limited kitchen, all to themselves. Her parents didn't know he was in the house alone, and Lisa came over as often as she could convince them she was staying the night with a friend.

In June, Kristy, Lisa's 18-year-old sister, came home after graduating from boarding school. Kristi was taller than Lisa with long legs, long blonde hair, and boobs that were noticeably larger than Lisa's. Lisa was a 34B, and even though Gary never asked Kristi, he guessed she was at least a 36C. Most Fridays, Lisa 'spent the night with a friend', but that Friday she had to stay home to help her sister get settled in. Gary's fantasy of Lisa, naked, in the bachelor pad would have to wait for another time.

That afternoon, Kristy was taking a shower and called out to Lisa to come talk to her. Lisa stood in the doorway of the bathroom and chatted with her sister while Gary was in her bedroom just a few feet away. Lisa got his attention and did a discreet "come here" motion which he willingly followed. From just outside Lisa's bedroom door, he could see the bathroom vanity mirror reflecting Kristi's naked body in the shower. It was only a couple of blissful seconds, but he got to see her amazing tits, small waist, long legs, and excellent, round ass. When Kristy turned toward the bathroom door, she saw him looking and covered up, so Gary pretended he was just walking by on the way to the den.

Gary couldn't imagine why Lisa had called him over for this quick, but amazingly sexy, peek. She was very adventurous and always coming up with new ways to keep their sex life interesting, so was this just something new and exhilarating to make their sex life even more incredible than it already was? Or was this a way to torture him? It was early afternoon, and even though her parents were at work, Kristy and their brother were both home. The bachelor pad wasn't going to happen, and for once there was no way he could get his girlfriend naked in the middle of the day to enjoy the rapturous release he desperately needed.

Gary never really paid much attention to Kristy before that day, and her never once said anything about her to Lisa. He was more than a little surprised when she let him peek in on her. That night he kissed her 'bye' at the front door, started his car, and drove around the first corner where he parked like so many nights before. In the darkness, he snuck back to the side of Lisa's parent's house to her bedroom window.

"Why'd you call me over while Kristy was in the shower?" he asked her as he undressed to crawl in her bed with her.

"I don't know," she answered, naked and waiting on him. "It just seemed like something hot to do at that moment. Did you like seeing her?"

"Yeah, of course -- I want to see all women naked. But she just made me horny for you," he said as he crawled in her bed.

Lisa's boobs were smaller than her sisters but still more than enough to rise proudly up as she laid naked on her back waiting for him. Her legs were shorter but spread wide waiting for him, and her bush was dark and curly compared to Kristy's very blonde tuft. He couldn't get his mind off that brief-but-so-sexy glimpse in the mirror a few hours earlier, and he was SO happy Lisa was naked here next to him.

Having briefly seen his girlfriend's sexy sister naked a few hours earlier, and now looking at his naked, very-willing (but less endowed) girlfriend waiting on him in bed, he was about to explode. Lisa giggled when he crawled on top of her, and her legs wrapped around him as he slid his erection in her.

"Oh god, you feel so good," he said as her wetness took him in. "I'm so fucking horny!"

"Me too," she said as his thrusts started filling her with pleasure. Gary loved going down on Lisa, and she loved taking him into her mouth as well. She was a tease at heart, and when she sucked his dick, he was totally at her mercy. Normally they would spend much time orally satisfying each other before fucking, but normally he didn't get to see her little sister naked. He needed to be in her first, and once some of the initial horniness wore off, he could taste her.

Gary fucked her for a while, enjoying the way her wetness soothed the extreme hardness Kristy had caused him. Their bodies moved in rhythm, her hips pushing to meet his while they frantically kissed. But the image of Lisa's naked sister running through his mind was also having other effects, and he was already feeling that tingling letting him know he was about to explode in her. He pulled out, kissed each of her boobs, sucked her nipples, kissed down her stomach, until the hair between her legs tickled his chin and cheeks. As he slipped his tongue into her wetness, he tasted the familiar combination of her sexual fluids and his precum.

"Oh yeah, that feels so good," she whispered.

She pulled her feet up to her butt to give him easy access to her, and covered them both with the sheet.

"Uh, you know if they come in, they're still going to know I'm down here. The sheet's not gonna hide me."

"I know... But..." she stammered. "Just shut up and eat me -- the door's locked."

Gary did as she asked, and continued probing her wetness with his tongue. He would stick it deep inside her, then nibble on her clit, then run his tongue from her butt up to her clit. Each move caused a different response from her, but when she grabbed his head and pulled him tight against her wetness, he knew that was what she needed to finish.

As she was trying to pull his head inside her, there was the unmistakable mood killer of a knock on the door.

"Oh SHIT!" she whispered. "Quick, get in my closet."

"Just a minute!" she said much louder to whoever was at the door.

Gary hid in her closet as Lisa pulled on a t-shirt and quickly composed herself.

"OK," she heard Kristy say.

Relieved it wasn't her parents, Lisa quickly opened the doored, pulled Kristy in, then closed and locked the door behind her. She turned on her desk lamp talk to her sister but saw Gary's shorts and boxers by her bed and quickly kicked them under her bed.

"Sorry to bother you, but can you talk? I'm used to being in a dorm with lots of people, so it's weird being alone at night."

"Sure, have a seat," Lisa said as she pulled the sheet and blanket up. She hoped her sister didn't see Gary's clothes she kicked under the bed, or the small wet spot on the sheet where he was going down on her. She turned the lamp toward the wall to lessen the intensity and hopefully make things less obvious.

"I hope I'm not interrupting anything," Kristy said.

Lisa wasn't sure if that was a casual comment, or if her sister knew something was up.

"No, not at all. I was just waiting on Gary to get home and call me," she lied.

"Really?" Kristy asked. "Isn't that the shirt he was wearing tonight?"

'Well, shit!' Lisa thought as she stared blankly at her sister trying to think of something to say.

"We have matching shirts. He brought me this one home from college."

"Wow, that's cool," Kristy continued. "Especially that you guys have matching stains, too. That's exactly where he spilled the wine on his at dinner tonight."

She snickered at Lisa's predicament before gleefully saying "Busted!"

"Just FYI, these walls aren't that thick -- I could hear you guys in my room. It sounded like a lot of fun!"

"Hi Gary!" she loudly whispered, looking toward the closet door. "Come on out!"

"Hi Kristy," he answered through the closed closet door. "I don't have any clothes on."

"That's OK," she responded. "I was naked, too, when you came in the bathroom today. It's payback time."

Gary prided himself on quick thinking, but this time he couldn't think of any way around this uncomfortable situation. He was still hard from being with Lisa a minute ago, so he decided his best path forward was to own the moment. He slid the door open, and preceded by his seven-inch erection, he joined his girlfriend and her sister in the bedroom. He saw Lisa in a t-shirt, sitting in bed, her knees pulled against her chest. Kristy was sitting on the side of the bed wearing a short, frilly, pajama top that made her legs look even longer. It was short, but just long enough to hide any bottoms, and he couldn't tell if that was panties or something matching that covered them. He could only tell it was small and made his imagination go wild.

"Wow, very nice!" Kristy said as he approached the bed. Her eyes fixated on his hardness for a second before she looked back at her sister.

"You too," Gary replied as he joined them on the bed. "But your look was much longer than mine. Why don't you lose those pajamas and let me get a better look."

"Yeah, I'll get right on that," she said without making a move.

Kristy turned back to Lisa.

"By the way, Mom and Dad are a sleep. And I'm not going to say anything."

"Thank you!" Lisa said as she bent forward to hug her sister. "I owe you."

Kristy smiled but made no effort to leave. Gary, being in the most awkward situation, decided to ask the obvious question.

"Uhhh, should I leave?" he asked, looking round for his clothes. It was at that moment he realized Lisa was wearing his shirt.

"No, don't go," Lisa begged.

"You don't have to go," Kristy said but still offered no sign she was about leave. "Your clothes are under the bed. Lisa kicked them under there when I came in. But don't let me interrupt you guys. It sounds like you were having a lot of fun."

For a second, awkward silence filled Lisa's bedroom. Naked Gary looked at Lisa wondering if he should get dressed. He would have to ask Lisa for his shirt before he could leave, so then they would both be naked in front of Christy. Both of them were still horny, and Kristy being in the room only made them more so. Lisa was the first to speak.

"So, are you going to just sit there then while we have sex?" she asked with a hint of intrigue mixed in to her normally sweet expression.

"No," Kristy said with a smile that confused the others. "I'll probably lay down -- more comfortable that way."

To emphasize the situation, she laid on her side on the far edge of the bed. Her back was against the wall, and there was just enough room for her sister and her boyfriend to lay beside her.

"Why?" Lisa asked.

Lisa wasn't opposed to the idea. She and Gary had sex in a hot tub with another couple also in the tub that first summer. Neither of them was shy, and both loved new, exciting sexual situations -- but this was her sister. Was there some angle Kristy would use against her some day?

"Because it sounded really sexy listening through our wall, and it also sounded like you were having fun. And since I'm really good at keeping secrets, you probably owe me," Kristy told her big sis with a mischievous smile.

Then, she continued but with a more serious tome. "I had sex once, and I really liked it. Maybe I could learn something watching you guys."

Gary was starting to feel uncomfortable standing there naked in front of his girlfriend and her sister. He was still rock-hard, and he knew his erection wasn't going to go away until he came.

"Can I at least put on my boxers?" he asked feebly.

"NO!" they both whispered loudly.

He wasn't unhappy with their answer. He knew he was still getting laid, and it was pretty hot being there with two beautiful sisters, neither who were wearing a lot of clothes. He sat next to Lisa on the bed and put his hand in his lap trying vainly to cover his hardness.

"So, you've had sex?" Lisa asked Kristy.

"Yeah, the night after my 18th birthday party at school, two of the guys I knew wanted to show me their private hang out. They had found a storage room in the old wing of the school and put a bed, some chairs, and a TV, and it's where they and other athletes went after hours to hang out. They said only the prettiest girls got to see it. So, once we were there..."

"Did they force you to have sex?" Lisa asked, a flash of anger in her green eyes.

"No, I wanted to do it. A few of the girls in my dorm talked about getting invited there, and they were the popular girls. I thought it would make me popular, too. But after I was with both of the guys, none of the popular girls talked to me any more than they used to. But someone did tell the dean, and I had to spend the weekend in the Reflection Room and wasn't allowed to see anyone else for three days. Since then, I've hated being alone -- even being in my room by myself tonight made me think about that. Oh, and they told Mom, too."

"They told Mom? I never knew about that. What did she do?"

"She lectured me... and made me get on the pill."

"So... the sex..." Lisa asked hesitantly, not sure how much Kristy would be willing to answer. "That was your only time?"

"Yeah, but it was with two guys. Does that count as two times?" she teased.

"Uhhhh, probably once. Was it a threesome? Like they were both doing things to you at the same time? I haven't even had a threesome!"

"Not at the same time. Me and Chase first, then he got dressed and it was me and Edward. I guessed they watched each other..."

"But you... uhhhhh... liked it?" Lisa asked. "You know, REALLY liked it?"

"Yeah, it felt good," Kristy answered, not sure what Lisa's strange word emphasis was about. "It felt pretty good, but it didn't last very long."

"OK, let me be more direct," Lisa continued. "Did you have an orgasm?"

"I don't think I did, but I'm not sure," Kristy answered.

"Did you feel so good that you felt like your body was going to explode? Then it DID explode?" Lisa continued.

"No, nothing like that," Kristy answered. "It felt pretty good, then it started feeling better, and I started liking it more. But, then they were finished."

Gary loved hearing sexy Kristy talk about her sexual experiences. Unfortunately, it was making him even hornier than he already was. With his hands in his lap trying vainly to cover his obvious issue, it was all her could do to not grip his manhood and start stroking. Lisa noticed his discomfort and reached into his lap. When she gripped his erection, he couldn't help but let out a loud but muffled sigh.

"Sorry, Babe," she whispered. "Just another couple of questions."

Kristy stared at her sister's hand on her boyfriend's dick wondering what would happen next. She was very inexperienced, but also very curious.

"You've never had an orgasm?" Lisa continued. "Like when you masturbate?"

"I've never masturbated," Kristy continued. "I thought about it, and I sometimes heard some of the girls in the dorm talking about it. But my friend Miranda got caught doing it in the shower, and she had to spend three days in a Reflection Room, too."

"Wow, that's fucking crazy." Lisa responded. "I masturbate, Gary masturbates. People I work with do it - pretty much everyone does. It feels really good, and nothing bad will ever happen from doing it -- unless you go to a fascist boarding school..."

Lisa was deep in thought before continuing.

"I just hate the thought of you being alone in that room for three days. I don't blame you for not wanting to be alone any more. You can sleep in here any time. If you want, we'll share a room again like we did before Janine went off to college. But for now, I know someone who's about to explode here. We do need to finish. Are you sure you want to stay?" Lisa asked as she took off her shirt.

"I don't have to if you don't want me to..." Kristy answered, trying not to stare at her suddenly-naked sister, "...but I would like to if you guys are OK with it."

Lisa didn't mind at all. She needed relief, and she knew Gary did, too, and it was more than a little exciting thinking about doing it in front of her less-experienced sister. She looked at Gary, and his smile told her he was OK with her suggestion. She laid on her back next to Kristy and reached a hand to him. He took her hand and crawled between her legs. She pulled him with an urgency that told him this was not the time for foreplay. When he was close enough she could grab his erection, she pulled him toward her womanhood. She put the head of his erection at the opening to her wetness, and with an urgent push he was inside her.

"Ohhh, yeah, that feels so good," she whispered as her back arched and her hips pushed forward to receive him.

Gary pulled most of the way out and pushed in again, this time with even more intensity.

"Oh my god, oh yeahhhhh," Lisa moaned.

This time she looked at her sister lying next to her. Kristy was barely blinking as she looked at their naked bodies, especially where Gary entered her big sister. Each time he pushed in, Lisa moaned, and Kristy watched more intently. They were quickly in a rhythm, Gary in, and out, and in, and out... Lisa's hips moving to that same rhythm, gentle moans of 'oh yeah', 'oh yeah', 'fuck yeah' filling the space around them.

"Is it sexy to watch?" Lisa asked between moans.

"Yeah, it is," Kristy answered. "Very sexy. I've never done anything like this before."

"Me neither," Lisa whispered. "Glad you like it. If I was watching someone, I'd probably want to touch myself. it's OK to do it if this excites you..."

"It definitely excites me," Kristy answered. "But I don't think I can touch myself... at least not now, in front of you guys..."

For a moment, Lisa concentrated on the feelings Gary gave her while inside her. She then kissed him passionately before whispering in his ear.

"This feels so fucking amazing, but I need you to pull out for a while."

Gary did as she requested. Once he did, Lisa reached between her legs and looked at Kristy. She rubbed her clit a few times, each time thrusting her hips forward.

"This feels nearly as good as when Gary is inside me..." she moaned.

She then pushed her finger deep inside her pussy, moved it in and out a few times, then swirled it deep inside.

"...and so does this. And nothing bad is happening. I've been doing this for a long time, and nothing bad has ever happened. Janine probably does it, too, and Gary does it ALL THE time, probably mom and dad do it..."

For emphasis, Gary started stroking his erection. He did it partly because he needed to feel good during the delays, and partly because he thought if Lisa could talk Kristy into doing it, she would take off her pajamas and he could see her amazing body again.

"And I promise, it feels REALLLY good," Lisa purred. "If you want, I will make myself cum this way so you can see nothing bad will happen."

Kristy never said anything -- she just intently watched Lisa and Gary stimulate themselves. Lisa continued alternating between rubbing her clit and pushing her finger inside, and the more she did it, the faster her hips rocked. It normally took her a few minutes to cum while masturbating, but with Kristy and Gary watching her, and with Gary doing it, too, she realized this would be quicker than normal.

"Kristy, I'm about to cum -- are you OK with that?" she purred sexily.

"Yeah, I want to watch you do it," Kristy answered.

Gary thought he could cum, too, but he would much rather watch Lisa do it, and watch Kristy watch Lisa do it. He leaned against the wall near Lisa and Kristy's feet and continued slowly stroking himself with his right hand. His left hand caressed Lisa's feet and legs as he enjoyed watching her masturbate from a different vantage point.

"Oh, yeah, that's nice," she purred, her breathing getting quicker, her fingering getting faster.

Lisa continued to play with herself, watching her sister who alternated between watching Lisa and watching Gary.

"Oh, yeah, that's what I need," she moaned. "I'm going to cum..."

Her back arched, and she pushed her finger deep in her pussy and held it there while pleasure raced throughout her body and lifted her off the bed. Her muffled moans finally went quiet, her body collapsed on the bed, tension flowing from her body.

Gary intently watched both sisters. Lisa body spasmed from intense pleasure while Kristy's eyes watched every movement - they were huge, and the look she wore was a little surprise and a lot desire. When Lisa's orgasm was finished, she opened her eyes and looked at Kristy.

"Oh my god, that felt good, and nothing happened to me. Other than I feel so fucking good..." she said sounding very tired.

Then the room was quiet. Gary wasn't sure what would happen next -- would Kristy decide to give in to desire and finally finger herself there in the bed with he and Lisa? Or was he supposed to follow her lead, continue stroking his erection until he exploded all over both of them? Or should he wait to see what Lisa would do next after she was the only one of the three of them to enjoy the blissful release of orgasm?

All Gary knew for sure is he could wait no longer. He crawled between Lisa's legs and pushed them open, kissed one thigh, then the other, and quickly worked his way to her pussy. He kissed around the soft fur but quickly found her clit and sucked on it.

"Oh my god!" Lisa whispered, louder than some of her other whispers.

Her first orgasm was barely finished, and she was still very sensitive. She pulled her knees close to her chest, her feet on either side of Gary's head, her hands on the back of his head trying to pull him inside her.

"Oh my god, Kristy, this feels so fucking amazing," Lisa said looking at her sister. "I get pretty loud when I cum this way. I need you to cover my mouth when I cum so I don't wake up mom and dad!"

She and Gary had done this many times in her bed with family on the rooms down the hall. She didn't really need any assistance staying quiet, but she wanted to get her little sister more involved than just watching.

"With my hand?" Kristy asked.

"Hand, pillow -- something! Just don't let me scream!"

Gary continued to lick her wetness, and soon Lisa was making the same movements as when she was fingering herself, but more exaggerated and powerful. The look on her face told her partners that she was feeling nothing but intense, glorious, pleasure.

"I'm going to cum again -- get ready, Kristy..."

Kristy watched her sister about to cum for the second time, and when it looked like Lisa was about to scream, she put her hand tightly over Lisa's mouth. Muffled screams still filled the small, dimly-lit space around them, and Lisa's body writhed in pleasure as her second, more-intense orgasm, overwhelmed her. But this time, Kristy was a small part of the event -- the horniness she'd felt during the first orgasm was nothing compared to how she felt now.

When Lisa's moans subsided, Kristy removed her hand, and for the first time she thought about touching herself. Even though she knew nothing bad would happen, her indoctrination was hard to overcome.

Gary crawled on the other side of Lisa, who was laying on her back. With Kristy and Gary laying on their sides facing her, the three of them barely fit on the full-sized bed. He kissed Lisa who hungrily licked her wetness off his face and sucked his tongue into her mouth. Her arms wrapped tightly around him as the extra naked body and almost-threesome intensified their sexual moment. Finally, her orgasm subsided and Lisa was finally in control of her senses again and able to speak.

"Thanks, Babe -- that was wonderful. I forgot how much better the second one feels."

She looked the other way at her sister.

"How was that?"

"That was very sexy, too. I've never seen anyone do that before, either. I've never seen any sex, and I can't believe how much I like it!"

"Gary was going down on me - you've never seen that before?"

"No, I haven't," Kristy whispered. "The girls at school talked about some things, but never about that. It looks like it feels good, though."

"It feels better than 'good'," Kristy replied. "As good as it felt when I did myself, Gary going donw on me felt even better. AMAZING!"

The room was quiet as Lisa caught her breath for a few minutes. Gary was still rock-hard and in desperate need of relief, and Kristy was overwhelmed by all she had learned and her own physical needs. Lisa turned on her side facing Gary, her back to Kristy. She pulled Gary toward her but on his back. She reached for his erection and slowly stroked it.

"Kristy, feel how hard this is," she whispered to her sister.

Kristy had only the one sexual experience. That night she was just a receptacle for two boys' desire -- there had been no sharing, no learning experiences, nothing for her other than a mess to clean up. She never touched them and knew nothing about their anatomy.

"Really?" She asked Lisa.

Lisa didn't answer -- she reached back for Kristy's hand, and since her sister didn't resist, she pulled it toward Gary. She placed it in Gary's hardness, and after a moment of awkwardness, Kristy's hand conformed to it. Lisa placed her hand over Kristy's and slowly moved it up and down.

"Oh fuck!" Gary whispered, surprised and very excited that Kristy was touching him.

"Feel good, Babe?" Lisa asked.

"Uhh, YEAH!" he replied.

"Are you OK?" she asked Kristy.

"Yeah, I've never touched one before," Kristy answered. "I like it - It's really hard,"

"Guys like it when you do that," Lisa told her. "Just don't do it too hard."

"Is this OK?" Kristy asked Lisa.

"I bet it's OK, but ask Gary."

"Does it feel good, Gary?" For the second time, Kristy felt like more than a voyeur.

"It feels amazing, Kristy," Gary answered. "You could make me cum really soon."

Kristy smiled at knowing she was bringing pleasure to another person.

"So how long would I have to do this before you came?" she teased.

"Not very long at all," he replied. "Even less if you took those pajamas off."

She looked pleased that she was having that effect on him, but before she could get him too close, Lisa interjected.

"Kristy, do you want to have an orgasm?" she asked.

Remembering the sounds her big sister made a few minutes ago, Kristy didn't have to think long before answering.

"Yeah, I think that would be great, but how?" Kristy asked, intrigued.

"I want Gary to go down on you -- if you're OK with him doing it."

"Really?!" Kristy asked excitedly. "But I've never done that before. I wouldn't know what to do."

"You just lay there -- Gary does most of the work," Lisa responded. "After a few minutes, you will learn what feels good, and you will figure out how to help him make you feel even better. And I promise you, you will really, REALLY like it."

"If Gary doesn't mind, I would like to try it," Kristy replied.

"I don't mind!" Gary said, eager for her to finally get naked with them.

"The first thing you need to do is take off those pajamas," Lisa said. "You saw him do it to me, so just lay on your back and spread your legs after that."

"Ok," she said.

Kristy sat up and pulled her top up over her shoulders and off. Even in the dim light, Gary was so excited to get her large boobs visible again. He was amazed at how far they stood out from her body, reaching out to him, teasing, begging for him to touch them and teach her about pleasure. As he stared, she laid on her back, lifted her hips, and slipped her pajama bottoms and panties off in a single movement. Lisa traded places with her so she was in the middle of the bed.

"Now spread your legs," Kristy said. "It's easier if you pull your feet up closer to your rear."

Kristy did as Lisa asked. Gary stared at finally naked Kristy, finally able to study her body without worrying about her catching him staring. As the two sisters laid beside each other naked, it was hard to imagine them being sisters. Kristy was noticeably taller with most of the difference being in her long, slender legs. Lisa's tits were not small, but Kristi's were definitely bigger and capped with large, pink nipples. Then there was their hair -- Lisa's was dark and wavey while Kristy's was long, blond, and straight. Even the hair between their legs was different. Lisa's was black while Kristy's was much, much lighter. But then he noticed their faces and realized they could never deny being sisters. Even though their hair and eyes were different shades, their face had the same shape, the same noses, the same smiles -- they were nearly identical.

Gary crawled between Kristy's legs, looked briefly at the blond hair between them, then at Lisa for permission one last time. When she smiled her approval, He took his first taste of her formerly-forbidden fruit. When his tongue first touched her, she gasped. He gently licked her, nibbled on her clit, then slid his tongue inside her. With each new, unique touch, she would gasp at her first-ever shared, sexual pleasure.

"Does it feel good?" Lisa asked.

"Oh yeah, it does feel good," Kristy answered. "Really, really good. I see why you like this."

Gary had Kristy by the hips pulling her tight against his hungry mouth. He pushed his tongue deep inside her, and she pushed her womanhood tight against his face. Lisa took his closest hand and moved it to her sister's boobs. Gary did the same with his other hand, and soon she was overwhelmed by pleasure coming from every possible place.

"Oh man, I really like this," she said. "It feels so fucking amazing."

Gary had spent the first year of his relationship with Lisa learning everything he could about going down on women. With her guidance, he felt like he knew how to satisfy a woman easily with his mouth. Since the moves he and Lisa had refined were causing moans, and hip gyrations, and other signs of satisfaction with her sister, this evening, in his girlfriend's bed, with his girlfriend's sister, he felt like a near-professional athlete at the top of his game.

"Oh god, this feels so good," Kristy whimpered. "unnnnghhhh, ooohhhhhh, WOW... I'm tingling..." she moaned even louder.

"Shhhhhhhhhhh," Lisa whispered in Kristy's ear while putting her hand over her sister's mouth. "Don't wake up mom and dad. Are you tingling where Gary's kissing you?"

"Oh yeah I am... and it feels so good."

"You're about to cum," Lisa whispered. "I need to you to do it quietly."

"I don't think I can," Kristy moaned as Lisa took her hand away for just a second. "It feels too good. I don't have any control."

Gary was getting very turned on listening to the two girls talk. He could tell Kristy was close to cumming, so he stuck his tongue deep inside her, then nibbled on her clitoris. Lisa felt her sister's body tensing, her hips pulsed harder, and her moans were getting louder. Lisa placed her hand so tightly over Kristy's mouth she was afraid her sister wouldn't be able to breathe. As Gary sucked and nibbled on the blonde sister's clit for the last time, he felt her orgasm start. As her body twitched uncontrollably, he squeezed her most sensitive area between his tongue and teeth. Pleasure exploded from her pussy throughout her body and lingered at her furthest extremities. Finally, the pleasure lessened and her body collapsed on the bed.

"That was definitely an orgasm," Lisa said and she saw her sister's body begin to relax. "How did you like it?"

"OH WOW!" Kristi panted. "That was amazing -- I've never felt anything like it. And you said your second one feels even better? How can anything feel better than that?!"

"If you want to find out, he can give you another one. I promise - the second one DOES feel better than the first one."

"Yeah, I want to try again. Are you going to do the same thing?" she asked Gary.

Lisa didn't wait for her boyfriend to answer.

"No, this time he's going to fuck you."

"Really?!" Gary asked trying in vain to hide the excitement in his voice.

Lisa shook her head 'yes' to both of them, then caressed Kristy's hair. She took her little sister's hand in hers and nodded to her boyfriend. Gary needed no additional motivation, but he quickly studied the two naked bodies -- one under him, and the other beside the first. He looked from Kristy's long legs, spread and ready to accept him, the blonde triangle of hair between them, her flat stomach, to her large boobs rising straight up to greet him, to the look of pure desire on her angelic face.

He kneeled between her legs, grasped his erection, and placed the head at her opening. When she pushed forward trying to take it in, he lost any remaining will power. As he pushed in, he took one boob in his hand and the other nipple in his mouth. As he began thrusting in her, she moaned, and she wrapped her arms around him and pulled him close.

"Oh my god, this feels so good," she whimpered.

Lisa laid back beside them and caressed Gary's back while he fucked her little sister. He kissed her, then kissed Kristy, then wrapped in the sensuality of the moment, she kissed Kristy's head and cheek.

"Does it feel good, Little Sis?" she whispered in Kristy's ear, with more than a hint of tenderness.

"Oh yeah... this feels... amazing," Kristy answered between his thrusts.

Kristy may have been inexperienced, but she quickly learned what increased her pleasure. She wrapped her legs around her sister's boyfriend, and quickly learned to match the rhythm of his thrusts. Each out stroke felt incredible, each in stroke was blissful, but when he was all the way in there was the briefest moment where the pleasure was almost overwhelming.

"It's so fucking hot watching you guys fuck!" Lisa told them. "So fucking hot!"

"Oh yeah... so hot..." Kristy moaned, sometimes not remembering her parents weren't too far away. "Oh fuck yeah... so fucking hot...".

"Shhhh..." Lisa whispered. "You'll wake up mom and dad!"

Lisa was so turned on watching them she was finding hard to control herself. She definitely wanted to join in -- be a part of the pleasure instead of a voyeur. She wished this was the threesome she and Tracy had planned before Tracy's family moved. She would have kissed her best friend, sucked her nipples, probably gone down on her after Gary finished. Instead, she violently kissed her boyfriend -- not an easy process while he thrusted his dick in and out of her sister. She also couldn't hold back and eventually squeezed, then caressed, Kristy's boobs.

"Fuck her like you fuck me," she told Gary between kisses. "I want to see her cum again".

"And I want to cum again -- so desperately," Kristy added.

Gary was more aroused than he ever remembered being. He'd never seen two women naked at the same time much less been in bed with or fucked two women. He had even given one of them her first-ever orgasm and was soon about to give her a second. This was a night beyond any other he had ever experienced, and even though the two women weren't having sex with each other, in his mind it was still a threesome. Finding additional every, he raised up on his arms, and found extra energy fuck Kristy even harder.

"It feels... too good... I can't... be quiet...", Kristy moaned between strokes. "Oh yeah... fuck yeah... oh my god...".

By this time, Kristy was progressing from sexual newcomer to experienced pleasure provider. For a few seconds her feet were on the bed providing thrust for her hips to intensely meet Gary's thrusts for maximum pleasure. Then her legs would spread wide, giving him even more access to her pussy, allowing him to reach new depths of her womanhood.

"Oh yeah... fuck me hard... this feels so good... fuck me... FUCK me!" she moaned. "I think I'm going to cum again!" she added.

"Oh yeah, cum for me, little sis..." Lisa encouraged her. "Show us how sexy you are when you cum..."

"I'm going to cum so fucking hard," Kristy moaned, her body bucking, meeting each of Gary's with one of her own.

"You're still on the pill?" Lisa asked.

"Yeah," Kristy said while also shaking her head. "Please don't stop -- you can cum inside me!"

"She's on the pill -- you can cum inside her, Babe!" Lisa whispered, reemphasizing what Kristy had just said.

Even more importantly, to Gary, this was her permission for him to finish in her sister. He was more than willing to follow her suggestion and wrapped his arms tight around Kristy, pulling their bodies tightly together. As his erection slammed hard in her again, and again, and again, he pressed his mouth hard against hers, partially to quieten her moans and partially to taste her, and feel her lips and tongue. Her tongue wrestled with his, sucking on it, tasting it, until the moans again took over.

"Oh yeah, you're going to make me cum. Fuck me hard, Gary," she begged.

"I'm cumming!!!!!"

Kristy's body lifted off the bed, her sexual energy easily lifting Gary's body and hers, intertwined, as her second orgasm pulsed ferociously through her.

"Uuuuuunnnnnnnggggggggghhhhhhhhhhhhhhhh!"

Lisa covered her sister's mouth as she felt Kristy tremble with newfound pleasure. Even though she had shared Gary's orgasm many times, and felt his body pulse into hers, it was her first time experiencing another woman's orgasm. Even if it was her sister, the intimacy of the moment was profound. Her desire to share the moment was intense, and she kissed Kristy's forehead, cheeks, and hair, and ears...

Finally, Kristy finished her second-ever orgasm and collapsed on the bed, Gary still on top of her and inside her. The two sisters had teased him, keeping their bodies from him while they talked about sexual experiences. Then they both used his hardness, bringing him to the brink of blessed release multiple times before delaying his orgasm to switch partners. The sexual build up had been long and passionate, and now that he finally ejaculated, he was beyond sexually exhausted. He rolled off Kristy and laid beside her.

Fucking his girlfriend's very hot sister was a fantasy come true, but he had no idea what would happen next. Were they done for the night, or would one of them make a move that would continue their playtime? Was this a one-time teaching experience, or would his sex-starved girlfriend find other ways to bring them together another time?

"That was so hot watching you guys," Lisa said. "I'm so fucking HORNY!"

As Gary laid still fighting off sleep, Lisa crawled between his legs. He watched her take his still mostly-hard dick, still covered in his and Kristi's combined sex, into her mouth. She eagerly cleaned every drop then proceeded to make him hard again. His two earlier girlfriends had gone down on him as they learned about sex together, but Lisa was experienced and had oral skills levels above them. As her sister intently watched, she quickly had Gary ready for his next sexcapade. Once he was fully hard, she straddled her boyfriend and lowered herself on to his erection.

"Oh yeah... oh, fuck, yeah," she moaned as she started moving up and down, again feeling the pleasure of him inside her.

One hand caressed her nipples while the other went between her legs. When she pressed on her clitoris, she gasped at the intense pleasure.

"Oooooooohhhhhhhhh..." she moaned as she passionately rode her boyfriend. "Kristy, this is another reason you need to learn to touch yourself. Getting both spots is even better than either one alone. This feels sooooooo good."

Kristy watched her sister, the look of pleasure spreading over her face, the sounds she made. She had felt that a few minutes ago and wanted to do so again. She finally gave in and put her hand between her legs.

"There you go, Baby Sis. That's nice, does it feel good?"

"It does," Kristy answered almost sheepishly. Her hand slowly moved over her mound and quickly found they spot that brought her the most pleasure.

"Now put your finger inside," Lisa said as she watched Kristy masturbate for the first time.

"That feels good, too," she told her big sister.

"OK, so now it's time for both," Lisa said. "Put your legs on either side of Gary's head, facing me."

Kristy straddled Gary's face and lowered herself onto his mouth. He had told Lisa that he wanted to taste his cum inside her, but it looked like his first time would be tasting it in her little sister, instead. He stuck his tongue deep inside her and lapped up their combined sex.

"Ooooohhh, that feels really good," Kristy said.

"Yeah, I bet," Lisa answered. "Now touch yourself."

Kristy did as Lisa told her, and as Gary's tongue probed her pussy while her own hand pleasured her clit, she again got to enjoy sexual pleasure a new way.

"Ohh my god, this is amazing," she panted and her hips started moving back and forth over Gary's face. "I really like this..."

"Me, too," Lisa whispered.

Overwhelmed with the passion of the moment, the pleasure on her little sister's face, and the tingling between her own legs, Lisa could hold back no longer. She reached toward Kristy and again took one of her large, heavy boobs into each of her hands. She knew it was her sister, but it was just feeling boobs and not real sex. While she rode Gary's dick and Kristy rode his face, and she experimented with boobs other than her own for the first time, she was enjoying the best sex she'd ever had.

"I wonder if she would care if I sucked one..." she thought as the tingling between her legs grew more intense.