In Sara.

At this point in time you are not picky on which pussy you cum in but Sara decides for you. When you place your hands on her butt, signally you are about to pull out again, her pussy clenches even tighter around your shaft. She breaks her kiss with Jen and looks over her shoulder to glare at you with erotic hunger. "Cum in me, Mark!"

Even if you wanted to pull out Sara's pussy constricting around your cock makes it near impossible. You give into fate and pound her cunt with all of your remaining energy until you let out a howl and pump what feels like a gallon of jizz into her womb.

"He's still cumming!" Jen notes, looking over Sara to see you painfully slow your thrusts to make sure your balls are empty. When you finally pull out, Sara rolls off of Jen and the four of you lie on the bed exhausted but happy.

"Oh my God! That was hot!" Alice gasps, snuggling her lover.

"I haven't been fucked so hard like that in ages!" Sara smiles at you as she rubs well-worn pussy, leaking of cum.

"Well, I never had sex with three girls at once before," you mutter, staring at the ceiling.

"I think it was there were firsts for some of us too," Sara giggles.

"But probably not the last time," Jen laughs, winking at you.

Your mouth is agape, not knowing how to respond. You don't know if you can keep up with Jen's sex drive, let alone all three girls, tonight!

"I think we should go to bed," Alice says, breaking the awkward silence. "I mean sleep. We're all worn out by the fun tonight."

"Yes," Sara replies, sobering up on the fact she just had an orgy with her roommates. She gets off the bed and offers her hand to you. "Are you going to sleep with me or with the girls tonight?"