Your asshole

You feel Nikki's tongue swirl itself over your balls, making every last inch of your rigid scrotum flesh wet with her saliva.

It feels amazing. Katie bouncing on your cock, Nikki licking up your balls. You look up at Katie's head. She's staring down at your cousin, watching her intently. Watching her as she takes a testicle between her lips and sucks it, then releases. Watching her as her tongue moves slowly down to your taint.

The sensation is amazing. You never want it to end. But Nikki moves on. And Katie watches her.

Katie watches and you feel every sensation as Nikki's tongue slides below your taint.

This is impossible, you think. Your cousin is naughty but not this naughty, is she? Then again, with Nikki, clearly all bets are off.

"What are you doing?" Katie asks, half shocked, half impressed as Nikki's tongue licks itself over your asshole.

It feels unlike anything you've ever felt. It feels amazing. You've heard as much. You've read as much. You haven't really believed it. And besides, you'd never have asked Katie to do such a thing. But now you're feeling it for yourself. And of all people it's your fucking cousin Nikki's tongue doing the licking.

Your erection rages. You close your eyes and moan.

"From the looks of it, I'm making him very, very happy." Nikki answers Katie's question, then goes back in for a few more licks.

You moan more. You can't help it.

"You like this?" Katie asks, not necessarily appalled, but shocked, her bouncing slows.

"Apparently" you manage to get out of your voice between gasps and deep breaths.

"You never told me." Katie says coming to a complete stop on your cock.

"I... never knew." You say. Is it really possible to make it to your 30th birthday and not know what you want sexually? Sure, you think, suddenly wondering about all the other things you may not know you like.

"Would you like to make him very, very happy?" Nikki asks.

Her question is met with silence. The only sound in the room is deep panting, yours and Katie's, maybe the thumping of a couple hearts.

The room smells like sex. You try to let that sink in. You're in a room with your cousin that smells like sex. Well, because you're having sex with her, and Katie of course.

Katie, who climbs off your cock slowly. Your eyes are closed, still taking in the sensation that Nikki is giving you. Her tongue isn't on you right now, but as she waits for Katie's answer, her finger tips flutter your asshole. It keeps your erection very very think.

And you wait for Katie's answer too. You don't want her to do anything she doesn't want to do. You don't want her to feel pressured. You don't want anything to ruin this night.

She's clearly thinking hard about it.