Pool Party [inc, nc, oral, futa, mast, huml, exh, blkmail]

**If you can’t tell by the title, this story has a little bit of everything. What it lacks is brevity. Still, if you stick around through the more dense descriptions, it gets more worthwhile throughout.**

Katie wasn’t your average high school student. She smart, kind, outgoing, and everyone knew she was tied with her sister Karen for prettiest girl in school. She had blonde hair and green eyes, a thin waist but curvy hips and perky, perfectly sized breasts, and with her long legs you could never tell she was only 5’6” unless you got close. Her parents were absolutely loaded, living in what was practically a mansion, one with a large pool and patio area, complete with ridiculous palm trees and a freestanding patio bar. They bought Katie just the car she wanted on her sixteenth birthday, the one she was still driving two years later. She had straight A’s and was president of two clubs, and just this morning an acceptance letter from her dream school came in the mail. That’s right, Katie had it all. In fact, maybe she had a little too much.

You see, Katie was born a genetic hermaphrodite, with male genitalia but an otherwise female body. She kept this fact hidden from everybody, except her parents of course, who hadn’t spoken to her about it since she was a very young child. Aside from them, nobody knew, which had taken quite a bit of effort over the years. Katie went to great lengths to avoid showering with other girls after gym, she always wore shorts while swimming, and she had never had a physical relationship with anyone. She wanted to date like a normal high-schooler, but she knew she couldn’t, so she decided to devote her life to her career instead. To an outsider, Katie would seem like a popular, successful, and overall normal high school student. But any girl with a dick knows in the back of her head that she is a freak. In fact, at 14 inches, Katie might have been two freaks.

Anyhow, this clear April Sunday morning, Katie had the house to herself, and she was spending it in the pool. She liked swimming, but didn’t do it often for obvious reasons. She swam laps for a bit but started to tire out. On the wall of the house that faced the pool, there was a wide section made entirely of reflective glass windows, as well as the glass patio door. Katie realized she could see herself in them, and reenacted the pool scene from *Fast Times at Ridgemont High*. She climbed out of the pool and walked toward her reclined patio chair in slow motion, and slowly untied her bikini top and playfully tossed it on the ground. She stopped to admire her reflection and, looking all around in a paranoid fashion, slowly unzipped her swim shorts. As they fell to the ground, she surveyed her body, perfectly shaved and feminine, complete with an 8 inch flaccid cock swinging between her legs. *Karen doesn’t have to deal with this*, Katie thought, *she’s pretty no matter what*. She sighed, but she wasn’t going to let it ruin her day, certainly not a rare day when she didn’t have to worry about it.

She sat on her chair and laid back to tan, admiring her still wet, glistening breasts. She began to rub them with tanning lotion, and took a moment to enjoy it. As her nipples began to harden, so did her cock. She took another paranoid look around and, satisfied with her solitude, thought, *why not?* She grabbed a little more lotion and slowly started stroking. She thought about her school crush, Cameron Jacobs. Cameron was in one of Katie’s clubs, and she seemed to like Katie a lot. Everybody else called her Cammy, but she told Katie that she preferred Cameron, and Katie took that to mean something. That fact paired with a rumor that Cameron was bisexual led Katie to fantasize about her frequently, despite the impossibility of the thing. It didn’t hurt that she was smoking hot either.

There Katie lay, fantasizing about Cameron’s fat (in the best way) ass, stroking her massive cock faster and faster. As mentioned earlier, Katie had measured her erect length at around 14 inches, and next to her tight little body it looked truly gargantuan. She lifted her hips up and down in pleasure, bringing her cock inches from her face. She stroked and stroked for several minutes, and her thighs started to quiver as she got close to orgasm. Unfortunately, she was so immersed in her fantasy that she didn’t hear the sliding glass door open behind her, and she didn’t notice her twin sister Karen approaching until she heard her say, “Hey, Katie have you seen my-OH MY GOD!” just as she started to cum. Katie was mortified but she couldn’t stop herself. Karen stood there with her eyes wide and her mouth agape watching Katie shoot load after load onto her chest. Katie winced in pleasure and in shame and waited for it to pass. She tried futilely to cover herself, and shrieked, “I can explain!” She couldn’t, and Karen’s shocked face had turned into an evil smirk.

It’s worth explaining that while Katie and Karen were mostly identical twins, they were polar-opposites in a couple of ways. First, Karen was entirely female. Second, while Katie was kind and humble, Karen was conniving and attention-seeking, greedy and self-serving. What was especially pressing was that their parents would be out of town for the next week, and they had allowed Katie to throw a pool party to announce being accepted to her dream college, and Karen couldn’t be more jealous. Katie loved her sister, but she knew who she really was, which made that smirk so much more terrifying.

“I knew it, I knew there had to be something wrong with you!” Karen rejoiced, “I never expected something this gross, but I knew there was something.” Katie was defenseless, she just stared up at her sister, trying to catch her breath. “Please don’t tell anyone.” Karen looked away for a moment to think, then smiled an eerie smile, and turned back to Katie and said, “Oh, I won’t, not as long as you do one thing for me.” *Oh no*, Katie thought, “what do you want?” “I promise not to tell anyone about your-” her eyes turned to Katie’s crotch, “-massive secret. All you have to do is… Fuck me.” Katie was shocked, but she knew that’s what Karen wanted. She couldn’t actually want this, could she? She was just trying to scare Katie with something repulsive so she could blackmail her with something else. Katie weighed the risk and said, reluctantly, “alright, fine. When do you want to do this?” Karen was obviously a little taken aback at the answer, but she was a tactician, so she started back inside and said, “I’ll let you know.” That wasn’t the worst answer she could’ve given, but it didn’t worry Katie any less. “Oh, and one more thing,” Karen said, grabbing a towel off the rack and tossing it at Katie, “don’t let me catch you doing that again.”

The next week was psychologically nightmarish. Nothing happened, but that made worse. Katie and Karen both went to school and came home every day, and every time they crossed paths, Karen would give a knowing smirk. Katie feared for her entire future, and her demeanor showed it. She could barely sleep, she was constantly stressed, and Karen watched her every move, so she couldn’t even masturbate. By Friday, Katie was tense and blue balled. She felt controlled by her own body, and that was a horrible feeling for someone with such a grip on her life and goals. Saturday morning, Katie got up and walked into the living room to find Karen eating yogurt on the couch and watching TV, but there was no smirk. Katie decided to tread lightly, “Hey, Karen, you remember my party tonight, right?” “Yeah, your DJ called to confirm earlier. I told him 9, is that okay?” Karen asked in a pleasant demeanor. “Uhh, yeah… That’s correct. Thank you?” Katie said suspiciously. Karen mocked her, saying, “You’re welcome?” as if nothing was going on. Katie decided not to press her luck, “Alright, well thanks. The caterers should be arriving at 8, and people will start showing up around 8:30, just so you know. You’re invited, obviously, just wear whatever you normally would to a pool party.” Karen continued to watch TV and said, “alright, cool.” It was like the calm before the storm.

The day went by mostly innocuously. Katie didn’t risk trying to alleviate her aching balls for fear of what Karen might do. Instead, she waited patiently for her party. Around 7:30, she put on her outfit for the night. She chose a yellow string bikini top and short sarong, she was feeling cute and a little dangerous. As long as nobody tried to look up her skirt nothing would go wrong. Everything went as planned leading up to the party. The DJ and caterers arrived on time, and at 8:45 the guests started pouring in. One hundred of her closest friends showed up. Katie wasn’t much for parties, but it was nice to know so many people would show up just for her. Cameron came too. She was wearing a bright blue bikini that accentuated her shoulder-length red hair. Katie greeted her and showed her to the patio. Katie couldn’t help but notice just how much Cameron’s butt cheeks were peeking out of her blue bikini bottom, and wished for a moment she had worn something under her sarong. She took a moment to collect herself, then walked outside to join the party.

Things were going great. The food was good, everyone seemed excited to talk to Katie, the music list was popular, and everybody was dancing in the moonlight, as it were. Then Karen came outside. Her “swimsuit” was technically a string bikini, but all it consisted of was three gold triangles. One small triangle clung to each breast, hard nipples obviously poking through the fabric. The final triangle barely covered her vagina, and was tight enough to show a slight cameltoe. The top tied in the back, and the bottom was just three strings joined above her ass. From behind she almost looked like she was wearing nothing but a ponytail. She pranced in making a scene of herself, jumping in the pool and shimmying up the ladder. She intentionally dropped things just to bend over and pick them up, and every guy there was happy to chat with her. Also, it looked like she might have been wearing… body glitter? Katie was furious. Karen couldn’t let her have just one night, she had to be an attention whore. Katie grabbed her arm as she walked by, “Could you please just let me have this?” “How about you suck my balls?” Karen retorted with a wink. Katie knew she couldn’t say anything else.

Instead of dwelling on ire for her whore sister, Katie waited patiently for 10 o’clock, when she planned to make her announcement. On the dot, she made her way to a visible place beside the bar, and tapped a spoon against a glass. “Hi everybody! I wanted to thank you all for coming to my party, and I have an announcement to make!” Just then, Karen snuck up behind her and whispered in her ear, “now.” Katie was caught up in the moment and didn’t connect the dots, “what?” she whispered back. “I want you to come inside and fuck me. Right. Now.” Katie tried to reason with her out of shock, “Karen, I’m about to give my announcement, can you wait just a-” “No, I can’t wait, and if you don’t come inside right now, I’ll tell everyone your secret,” Karen said with no expression on her face, just an evil look in her eyes. Katie was out of things to say, “Karen please…” Karen looked exasperated, “Fine, I won’t tell them.” She pulled away from Katie’s ear. “I’ll show them!” Then she grabbed Katie’s sarong and tore it off. Katie froze, her massive dick hanging out for the world to see, and indeed everybody in her world saw it. Katie couldn’t read anyone’s faces, aside from a unanimous look of astonishment.

Her attention shifted from the crowd to her sister. Karen hopped away in glee with her hands over her mouth, pretending to be surprised, but her wicked giggles betrayed her. Katie’s shame and embarrassment fled from her body, and she was over taken with anger. She walked toward Karen with purpose, her cock engorging from shear rage and flopping off of each thigh as she walked. Karen started to walk away but it was too late, Katie grabbed her by the back of her thong, swiftly pulling it upward and digging into her pussy. “Ow ow ow!” she said, sincerely. Katie used this intense wedgie to guide Karen to the nearest table, then bent her over it. “You want me to fuck you? I’ll fuck you!” Katie said, tearing the skimpy swimwear off her sister’s perfect body. “Wait, no, I didn’t mean to!” Karen protested, but this only fueled Katie’s desire for revenge. Her cock looked bigger than it ever had before as she pressed it up to Karen’s glistening pussy and grabbed her sister’s hips with a cruel grip. “You deserve this,” Katie announced without remorse, then she plunged into her sister’s body.

In the initial plunge, she made it about 6 inches in but couldn’t push any farther, Karen was just too tight. Just then, the crowd erupted into cheer. “Katie! Katie! Katie!” Everybody in town knew about Karen’s evil, conniving ways, and they loved Katie even more than they already had. “Do you hear that, Karen? Who’s disgusting now?” “I’m sorry,” Karen lied, mascara now streaming down her face, “please just stop!” Katie thought for a moment, then grabbed Karen’s ponytail and said, “No.” Cheered on by her classmates, Katie continued to drive the remaining 8 inches in, until her stomach pressed against Karen’s quivering ass. *I didn’t think I’d lose my virginity to my sister*, Katie thought, beginning to regret her actions, but she heard Cameron shout, “Give it to her!” She had to keep going now. She pulled out half way and then forced her way back in, and Karen managed to give a yelp. Then she pulled back and did it again. And again, and again and again, until Karen finally managed to get out, “you can’t cum in me! I’m not on the pill!” “Of course not,” Katie said, pulling all the way out. She flipped Karen over onto her back and walked around the table. Karen tried to offer penance, to make some sort of deal, but Katie put the tip of her cock into her sister’s mouth. “Don’t talk with your mouth full,” Katie said, mercilessly driving her enormous cock down Karen’s throat. As soon as her balls slapped against Karen’s face, Katie put a few fingers in her sister’s pussy for grip, and began to pump in and out of Karen’s mouth.

This went on for a minute or two, when Katie felt a tap on her shoulder. It was Cameron! “I know this is kind of a bad time for you, but I thought that might be a good thing, I mean, umm, I really like you and, I thought maybe… with all this chaos, you know, why not add a little more?” Cameron managed to stammer out in her nervousness. Katie was taken aback, was this some sort of dream? “Uh, sure, yeah!” she said, ripping her cock out of her sister, who coughed and tried to catch her breath. In her excitement, Katie began to make out with Cameron, uncinching Cameron’s bikini top and caressing her breasts. Cameron didn’t skip a beat, and untied Katie’s top as well. Katie removed herself from her crush’s face to jerk down her bikini bottoms, revealing a perfectly shaved pussy, she second Katie had ever seen, though certainly the prettiest. She licked at Cameron’s labia, not really knowing what she was doing but enjoying herself anyway. Cameron looked down and smiled at her, but put a hand on Katie’s face and gestured her to come back up, so she did. Katie stood up, and caressed Cameron’s now bare ass. It was perfect, and her cock stiffened to maximum hardness again, rising between Cameron’s legs and resting in the gap between her thighs. Cameron looked down at the massive object between her legs, and found herself suddenly out of breath, “I don’t think you’ll fit in me.” Katie figured she was right, but knew they just needed time to get Cameron’s body ready. “We have all night,” she said, “and I bet my sister’s a lot better at giving oral than me.” Karen’s eyes widened at her sister’s meaningless statement, she had never done anything with a girl. Well, not before tonight. Cameron, feeling up for anything, smiled at the thought.

Katie bent down to her sister, who was still lying on the table, and whispered in her ear, “give Cameron the best oral of her life, or I go back to giving you the best of mine.” The “oh shit” look on Karen’s face was priceless, and she just said, “okay.” Katie walked Cameron over to her sister, and moved each of her legs to either side of Karen’s head. Then, she grabbed the back of Karen’s head and forced her face into Cameron’s pussy. Karen did everything she knew to do, licking, sucking, nibbling a bit, doing whatever she felt like guys had done to her before. Cameron started playing with Karen’s breasts. What else do you do? After all, she looked just like Katie. Well, almost. Katie stood back and watched as her sister pleasured her crush, and felt a distinct mixture of arousal and jealousy. After a few minutes, she stepped in, careful to lift her cock so that she could rest it against Cameron’s upright back, and reached her hands around to caress Cameron’s breasts. She pressed rhythmically against Cameron for a moment or two, and asked, “are you ready?” Cameron turned her head to the side, with the most lustful look Katie had ever seen, and breathed, “yeah.” She slowly bent Cameron forward over Karen’s body and positioned her cock against her beautiful, tight pussy. Karen started to lie back to rest, so Katie looked down and said, “keep licking.” She did, and Katie could feel her sister’s tongue brush against her cock each time it stroked Cameron’s clitoris. This was the best night ever. The grabbed Cameron’s hips.

As Katie slowly drove into Cameron’s pussy, Cameron began to arch her back. She began to shake after the halfway mark, but mostly accepted Katie into her without a fuss. She reached back and put her hand on Katie’s hip as a sign of assurance, but couldn’t leave it there for long, as she needed both hands to hold herself off the table. This cock made her feel weak. Katie began to slowly pump in and out of her crush, and both began to moan. The crowd was stirring. Some had begun sensual activities of their own, but most were still watching the three girls, now glistening with sweat, in total fixation. The attention would normally have made Katie nervous, but tonight it drove her on. Her cock became more sensitive as the sex progressed, and she felt Karen’s tongue more and more. She suddenly realized the opportunity, looked down and said, “Hey, Karen, how about you suck my balls?” Karen, tired of being surprised, shifted a bit, and took her sister’s balls into her mouth, and began sucking them. This was an activity Karen had some experience in, and to Katie, it felt so good it hurt. Katie knew she wouldn’t last much longer, and soon before she came, Cameron did. Cameron’s pussy twitched and constricted and her body shook. Out of breath and sweaty, Cameron slid off of Katie’s cock, rolled over, and said, “I’m sorry, I couldn’t last any longer.” The apology was unnecessary, for just as she had pulled off, Katie began to cum as well. Her eyes closed and her mouth wide open, Katie held back a moan and, taking hold of her convulsing cock with both hands, came all over Karen’s slick, shimmering body. It seemed like she would keep cumming forever, but after nearly 30 seconds she finally stopped. Karen’s body was covered, though again, she had given up on being surprised.

Katie collapsed to the ground in satisfaction, and Cameron sat up on the table. “Let’s do this again sometime,” Cameron said, and everyone laughed but Karen.

*This story is pure fiction and any names which coincide with real names are just that; coincidental.*

Source: reddit.com/r/sexystories/comments/7wymu5/pool_party_inc_nc_oral_futa_mast_huml_exh_blkmail