"Fuck you, pig!" As we got closer, more and more people were around us, almost all in costume and almost all drunk. Guys were whistling and cat calling my sister.
"Hey baby! What will 5 bucks get me?!" Dani turned to him and flashed her tits.
"Pay up!" The guy reached in his pocket and crumpled up a 5, then threw it at her. Dani caught it smoothed it out, and stuck it into her cleavage so it stuck out.
"You are such a whore."
"Sex work is work, fascist!" I gave her a slight shove.
"I said move it!" We reached the house; it was a multistoried house with a large enclosed porch, which was full of drunk college kids. We walked up the porch steps and past them, into the house itself. Inside, immediately forward was a stairway to the second and third floors, to the right was the kitchen and left was the main living room. It was packed full of people. Costumes were all over the place; Power Rangers, Ghostbusters, Nintendo characters, Marvel and DC superheroes, some topical costumes from recent events, and no shortage of sexy costumes: sexy pizza delivery girl, sexy Chinese food box, sexy lifeguard (just a lifeguard), sexy space princess, sexy Arab princess, sexy ice princess. A lot of the frat guys went with the classic naked except black underwear and a black censor bar glued to it, and an equal amount did Togas. There were also various couple costumes: Bonnie and Clyde, Mario and Peach, Han and Leia, Shaggy and Daphne, Caesar and Cleopatra, Aladdin and Jasmin, Bojack and Diane... gotta admit that one was actually clever. A few of the sorority girls were just bodypainted, some of them even hanging painted bush. Good for them!
"Where to, officer?"
"Get to the kitchen, woman!" I pushed Dani again, enjoying this role more and more. She stumbled into the kitchen where various boozes were everywhere; every inch of counter space, table space, fridge space, and some floor space were covered in bottles or boxes. Dani grabbed a bottle of gin and took a swig. She then bent down and open a pocket on the side of her knee high boots; inside was a flask with Tinkerbell on it. She opened the flask and somehow, despite being handcuffed, poured the gin inside perfectly without spilling a drop. Another swig and she replaced the flask; I noticed when she bent over her pussy lips were on full cameltoe with her tight fitting clothing.
"Get to the dance floor, whore."
"Mmm, yes sir." We made our way through the throngs of people to the living room with the large sound system pumping out EDM. Dani started dancing and I did my best to keep up, despite my inexperience. At various points she ground her ass into my crotch, and even reversed to grind her pussy while face to face with me. That must have been sooooooome gin.
The entire time I was looking for slutty looking girls without a guy. I saw one, a red head in a playboy bunny outfit, complete with ears. She was sitting on the couch nursing a beer, not on her phone or talking to anyone. I tapped Dani's shoulder and pointed at her, then pointed to the bunny. Dani gave me that smile again, then produced a key and uncuffed herself.
"Where were you hiding that key?"
"Don't worry about it." She separated and sat next to the redhead. At first they just nodded their heads, then Dani put her hand on the girl's thigh. Huh that was- WERE THEY MAKING OUT?! Holy shit. My sister was sucking face with the playboy bunny. After a few minutes, Dani looked over at me and crooked her finger. And she did the smile again. The spell inducing smile. I was under her magical influence and found myself sat between them. Dani pushed my face towards the Playboy bunny, and she started making out with me. Then, the Bunny pushed my face back towards Dani, and she started making out with me! No fucking way! My sister's tongue was in my mouth. I could taste a mixture of gin, strawberry lip gloss, and a tiny hint of weed. She must be drunk and high right now... right? Why else would she.... oh shit. The roleplay. I had to make her ex jealous. But how far would she take that roleplay?
Dani broke the kiss and smiled at me again. She maneuvered her eyes to indicate a direction. In that direction I saw her ex, David, with a drunk chick on his arm. He looked pissed. I looked back at Dani. She wasn't looking at me, she was looking straight at my erect cock in my thin pants. She bit her bottom lip like a schoolgirl. Then, she and the Bunny got up and got on their knees. Dani undid my belt while the Bunny pulled the zipper down. This was not happening. Dani tugged my pants so hard they came to my ankles without me even having to lift my ass off the couch. My cock was out, full mast. A few ladies whistled, a few guys cheered. Both my sister and the Bunny got in front and started playing with it with their hands. The frat boys started chanting "Suck that dick! Suck that dick!" Dani looked me in the eye and winked, then deepthroated my cock in a millisecond. No fucking way. My first blowjob is from my older sister. No one would believe me. So glad we went to different colleges and no one recognized me. The Bunny went straight to my balls and alternated between sucking them in her mouth and running her tongue over ever crevice. Meanwhile, sis started bobbing on my cock, one hand underneath her mouth to extend the squeezing pleasure. Her hand was lubbed up with her generious amount of spit that was making my cock positively glisten. My face shriveled like I was sucking a lemon as I struggled not to cum. Everyone around us, except Dani's ex, was cheering and wooing like it was a porn shoot or an orgy. Suddenly the dam burst and lots of the couples started getting it on in various ways. Cleopatra was on her knees sucking off Caesar. Bojack was fucking Diane doggystyle on the couch on the other side of the room. The Powerpuff Girls were in a three-way pussy eating circle on the dance floor. April O'Neil was getting airtight from the Ninja Turtles. Sailor Moon was mid-air riding tuxedo mask's cock while he held onto her.
Well hot damn. It WAS an orgy! My devious sister had brought her sweet innocent virgin brother to a den of debauchery!
Dani popped my cock out of her mouth and fed it to the bunny. She sucked in air making a moaning sound and said
"Mmm, does that feel good?" Then she dove on my balls and both sucked and groped them with her off hand. That was it.
"I'm cumming!" The Bunny pulled the cock out of her mouth and I sprayed on her face, then she pointed it at Dani and sprayed her face with my man milk. When I was done, the girls started making out, making the cum on their lips froth up. Then they started licking each other's faces until they had a big ball of cum in their mouths and spit it at each other, snowballing.
Was... was my sister the biggest slut in the fucking world?!? I started thinking of the implications. How immoral was it, really, to fuck my sister? She was just a woman, after all, similar in age to me. She had a hole, I had a pole. Was I getting a contact high or something!?
Dani got up and sat in my lap like a stripper, her ass right on my sensitive cock. She leaned back so her head was next to mine and her mouth was next to my ear. I noticed for the first time her perfume, a very stripperific scent if there ever was one.
"Did you enjoy that, little brother?" She whispered into my ear so no one else could pick it up over the thumping music.
"Y....yes...."
"Big sis will teach you more, if you play your cards right. Pull up my shirt and play with my tits." I did as she instructed. First blowjob and now first time touching a boob, and they were both experiences provided by my blood relative sister. I was going to hell. Her boobs were so soft yet perky: perfect B cups with perfect nipples. I took each nipple in hand and played with them by touching them, rolling them in my fingers, and flicking them. Dani ground her ass into my cock the more she liked how I played with them. The playboy bunny had recovered as well and, still on her knees, took Dani's thong panties off, then threw them into the crowd never to be seen again. She then started eating out Dani's pussy. Dani closed her eyes and sighed but never stopped gyrating her hips as she got oral sex from a girl while her brother felt her up. Slut was too weak a word; my sister was a bonafide sex goddess. She started breathing more heavily and her pelvis thrust almost uncontrollably into the redhead's mouth, then she screamed:
"YES! YES OH GOD YES!!" Well now I knew she was a screamer when she came. Suddenly, I noticed David was standing right over us. He was a big guy, probably brains of a seabass.
"You dumb bitch. I know this is just some guy you pulled out of the crowd to make me jealous!"
"Nuh uh, David. This is my new boyfriend and he's better than you in every way. Aren't you, Mikey?"
"Yeah David this slut is my woman now!" I grabbed her right tit hard, then put my other hand over her pussy.
"This is mine! This is where my babies come from!" David obviously wouldn't get the reference and wasn't impressed.
"Prove it. Let's see you fuck this dork! I'll know if it's real!" Dani said nothing as she reversed in my lap so she was facing me. My cock was hard again, and just inches from her pussy. I got a good look at it. It was pink and glistening; she had a landing strip of red hair the same shade as her head. Well, answers that question on if its naturally red. She leaned in to whisper to me.
"Make it look good." Make what loo- Oh god oh jesus there it is. I was inside her. I was inside a woman for the first time. It was tight and slippery and unbelievably hot. This was what sex was like?! My hand would never suffice again. Especially not with this hot piece of pussy living literally next door to my room. Suddenly all those incest roleplay videos online made sense. Dani started riding me on the couch, bouncing on my cock like a slut. My view was top notch, too. Dani's perky B cups were just swirling opposite circular directions in my face as she rode my cock for all she was worth, fucking me while moaning like a pornstar. I found it extremely hard to cum more than once in an hour, let alone 15 minutes, and that was the only thing saving me from prematurely pumping my sister full of baby butter. Fuck, was she on birth control? Eh, I could deal with that later. I remembered I had to play a role. I grabbed the back of Dani's neck forcefully and brought her face to mine, then shoved my tongue in her mouth. She had to stop riding to maintain the kiss, so I started bucking my hips, causing my balls to slap against her ass as I fucked her. I heard a couple "Woooo!" chants from the ladies around me. After I got fatigued from that position, I picked up my sister and dumped her on the couch, still inside her. I knew if I slipped out, I would not be able to find her hole and our jig would be up. I repositioned so I had balance above her and started stuffing her pussy from above. The couch was slightly awkward since one of my arms was buried in the cushions, but my other arm and hand had a grip on the armrest and that gave me the support I needed. I got into a rhythm and decided now was the time to play to the fantasy.
"You like that, whore?!"
"Oh yes, officer! I'll do anything, oh god! To not go to jail! Oh cum inside me! Give me that hot hot load you fucking pig!"
"I'm going to pump you full of cum you slut hooker!" I increased my pace until I got over that hill and started cumming inside her. It felt so much better than cumming by hand. The orgasm was enhanced by her walls clamping on me, milking me dry. I hoped that was a good enough show. Lots of the girls in the audience clapped and the guys cheered. I tried looking for the playboy bunny; I spotted her eating out another girl wearing a Wonder Woman costume. Maybe she wasn't my type.
Dani pulled herself up and straightened out her skirt and shirt, though with her panties gone and her lack of bra, she might as well have been naked. David walked up to me, I was expecting him to slug me. Instead he... shook my hand?
"I was wrong. It's clear you two love each other. Good luck." With that he left the party. Well, that was unexpected. But so was losing my V card to my sister at a frat party, with an audience. Not many guys can say that! I wondered when the next time I would get pussy would be. I also wondered if David had to go back to his home planet, now. I remembered I was pantsless and quickly found then donned my costume's pants.
"Help me up, pig." I turned to Dani, who was extending her hand to me. I grabbed it and pulled her to her feet.
"Let's go upstairs. I want to lie down." I nodded and followed her up the stairs to the third floor, she seemed to know this house... intimately. She went to the end of the hall upstairs to a bedroom door, she knew it was unlocked. Upon entry, it was obvious this room was vacant as it had only a bed with a sheet on it and nothing else in it. Dani laid down on her back on the bed and took her phone out of her other boot pocket, she started texting someone. I sat down on the edge of the bed. I broke the silence.
"Did your plan work?"
"Hmm?"
"I made your boyfriend jealous, didn't I?"
"Oh yes. I suppose you did fine." She went back to texting, the phone and a dim lightbulb in the ceiling being the only light source in the room. Still, my eyes adjusted and I could make out her nipples under her transparent shirt, her landing strip and her pussy oozing my cum under her skirt. I was getting excited, again. The thrill of getting pussy combined with the taboo nature of fucking my sister was intoxicating, and I wasn't even drunk or high. She seemed much more distant, now, perhaps because I had accomplished her mission.
