You and my girlfriend have been practically inseparable since summer camp in the seventh grade. All through high school you took the same classes, worked the same after school job at the cinema, and you even shared a dorm the first two years of university. It would have been three if she hadn't moved in with me, but after a few tears, you found it in your heart to forgive me (even if you still jokingly bring up how I stole your bestie away from you).

Suffice it to say, it's no surprise that you hang out with us all the time. I've never exactly minded. I mean, we get along well enough, and if nothing else it's always incredibly easy to tease and wind you up to add some spice an otherwise boring afternoon. Sure, Katie might scold me a bit after, but I've seen her do it, too. You've just got one of those adorable, pouty faces that's too much fun to fluster. Honestly, you're asking for it sometimes.

Yeah, you're a third wheel, but no one seems too bothered by the arrangement. After all, the more the merrier for most things. Our movie nights are the stuff of legends, and your taste in music has led us to some pretty great shows. But as far as the more intimate things go, Katie and I have never really shied away from indulging ourselves just because you're around. PDA is par for the course when we're out and about, and sharing that dorm freshman year, you had to put your earplugs to the test whenever I slept over (which was pretty much always).

It's no big surprise that you've heard some downright decadent dirty talk when we're out together. You've soldiered on through your fair share of us feeling one another up with promises of what's to come when we're back home. Today's more of the same for the most part, but Katie's apologetic look throws a wrench into the usual script.

"I'm sorry, babe," she assures me with a gentle pat on the arm. "You know how my mom is, I didn't even know she made plans for us until she sprung them on me."

"Come on," I urge, winding a possessive arm around her tiny waist, urging her in closer. "You don't even have time for a quickie? It's not like she's out front yet."

Playfully swatting my shoulder, she effortlessly turns my lusty embrace into a sweet, squishy hug, even tiptoeing up to rest her cheek against mine. "But she will be soon, and you know she'll go weapons-grade-guilt-trip if I make her wait even five minutes."

"Five's all I need if you break out that new lingerie again," I interrupt with a lecherous arch of a brow. I'd gladly indulge in some self deprecation if it led to self satisfaction.

"Oh stop," she snorts, finally breaking free from my embrace. "You can keep it in your pants until I'm back tonight, if I survive. Or go jerk off or something," Katie huffs. "Either way, just behave."

"I'm always on my best behavior around you," I hum glibly, tugging her back in once more. But this time it's more sweet than salacious, greedily stealing another hug from her before she descends into the depths of an entire afternoon with Dear Mother. We all know she's going to need it. "Love you. Good luck with the Queen Narcissist, give her my regards." Pecking her cheek, I crack a wry grin to undo all my efforts to amend my behavior. "Just know I'm insanely horny right now and you're absolutely missing out."

With an airy sigh, she just shakes her head as she peels herself away from me to grab her bag and head out the door.

"Keep him out of trouble, okay?" she laughs, casting her glance back across her shoulder toward you.

Somehow I'd forgotten you were even still here. But then, so was the couch, and I rarely thought much about that either until I needed to lay on it.

Over the click of the door shutting, I can hear you softly say something, but I can't quite make it out.

Flicking my gaze over toward you with an idle grin, I quirk a curious brow. "What was that? I didn't quite catch it."

Hooking up with my girlfriend's best friend, the perennial classic.

Some of the kinks I'm interested in for this scene include cheating, casual sex, barebacking, size difference, risky sex, semi-public, lingerie, and creampies.

Limits are abuse, bodily fluids that aren’t saliva or sexual, rimming, and darker themes.

Hit me with a message to hammer out the details, or feel free to jump in where the prompt left off. DMs, chat, roll with whichever, just send me more than a one liner.