*Insert obligatory long time lurker, first time poster spiel here*. I'm gonna skip the backstory for this cause I tried writing out this post with the backstory and it was too long and clunky. ****** will mark the start of the fun stuff. All we need to know is that at the time of the story, I was 23, my girlfriend Paige was 24, and her girlfriend Kat was 30. My girlfriend is obviously bisexual and by this point, we had all had sex with each other multiple times and Kat and I regularly sexted and shared kinks, one of them being public/risky sex, this will be important.

This story takes place one weekend when Kat came down to visit us from the city she lives in a few hours away. This is the part where I describe us and tell all you horny readers how hot my two lovely ladies and I are; well, I got news for you: we're not supermodels. While I don't think I'm ugly, I am pretty chubby. I'm 5'8'', brown hair, exceedingly average penis. Paige is curvy and gorgeous, but she's not really in this story so I'll just say she's got blonde long hair, wide hips, and big c/d size breasts. Kat is also kinda chubby, maybe 5'6'', shoulder length brown hair, nice curves, a smile that was at times adorable and/or sexy, a soft little ass, and c cup breasts with the nicest, thick little nipples that were just so fun to suck on.

So anyway, Kat is visiting Paige and I and we share a really nice first day naked in bed together. That night, we were invited to a house warming party for a friend of ours. The three of us show up, and right away I'm struck by how many people at this party I don't know. It was maybe 25ish people there, and I only knew 6 or 7, a lot of friends of my friends roommates. The people that I did know there were really excited to meet Kat as Kat and Paiges' relationship wasn't a secret, but it was new. They had only been dating for 6 months while Paige and I had been dating for 5 years already. The party is fun, we are all drinking, playing some games. Kat and Paige sneak away to my friends room to make out for a while.

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Then it happened. I see Kat slip into the bathroom after coming out of the room with Paige, and Paige comes over to tell me that Kat wants to see me in the bathroom. Right away I can feel myself start to get a semi. I was also honestly pretty nervous. I had hooked up in party bathrooms before, but that was at big house parties with all of my friends there and most importantly, everyone at those parties was totally shit faced. This party did not have that vibe. The apartment also wasn't that big, so if I went into that bathroom, there was no doubt everyone was going to know exactly what was going on in there. I took a deep breathe and headed for the bathroom door.

I knocked on the door and Kat let me in. After I locked it behind myself, we immediately started kissing. Our hands started exploring each others bodies as our tongues and lips met. I moved my hands down to her ass and gave it a hard squeeze. After a little bit of kissing, I moved one hand up under her red sweater and moved her bralette aside so that I could pinch one of her nipples between my fingers, eliciting a wonderfully little moan from her. She ran her hands down the front of my body and began to rub my already rock hard cock through my jeans and it quickly became my turn to moan.

Kat then pulled herself away from me and started moving towards the sink. I gotta be honest here, I almost chickened out. I was getting anxious about all these strangers out there knowing what was going on. I told her I was nervous, but Kat had a really interesting way of making me forget about all of my worries; she pulled her pants down to expose her cute little ass and bent over the sink, then she shook her hips in my direction. Thats it. I was sold.

I moved behind her and pulled my dick out of my pants. I put my dick right in-between her ass cheeks and slapped her ass. I slapped it again, and some how got even more turned on by the moan she let out. I pulled he purple thong down and started rubbing her pussy from behind. I was surprised by how wet she already was. I couldn't resist and bent down and started licking her pussy and squeezing her ass. She did an admirable job of trying to control her moans. When I stood back up, I made sure to drag my tongue up against her tight little asshole like I knew she loved.

In no time at all I was as deep as I could get into her pussy and fucking her hard. I slapped her ass and pulled her hair while I fucked her over the sink. I absolutely loved the view of her face in the mirror while I fucked her. At some point, I slid one of my fingers into her tight asshole and almost immediately after that felt her sweet cunt spasm as she came on my cock.

I was rapidly approaching the point of no return for my own orgasm and told her so, and she immediately turned around and got on her knees. She took my cock into her mouth and started bobbing her head up and down. I could feel her tongue flick all around the head of my cock whenever she was at the tip of my cock. It wasn't long before I told her I was about to cum and she plunged her mouth down onto my cock and I began to shoot rope after rope of cum into her mouth. She swallowed every drop with a smile on her face.

When I was done, she stood up, gave me one deep, long kiss, and said thanks into my ear. She pulled up her pants, checked her face in the mirror, and strolled out of the bathroom as happy and as confident as can be. I came out a couple minutes later, and while no ones said anything, it was obvious everyone knew, if not heard, exactly what happened in that bathroom.

(This is my first post here so constructive criticism is welcome. This ended up pretty long so I hope you all enjoyed reading it as much as I enjoyed writing about it.)