In Jen.

At this point in time you are not picky on which pussy you cum in but Jen decides for you. She breaks her kiss with Jen and looks over her friend's shoulder to glare at you with erotic hunger. "I need you to cum in me, Mark!"

You stop thrusting and Sara looks back at you. "Go ahead, fuck her brains out," she says. "She's blonde afterall!"

Jen yelps and playfully pushes her friend off of her and your cock slips from the redhead's pussy.

"Fuck me, dammit," the blonde growls.

Who are you to argue with such forceful command? With no ceremony, you sink your cock into Jen's amazingly tight cunt and pound away like a crazed animal in heat. She pulls you down and wraps her arms and legs tightly around you as she groans in your ear. You lose track of time and space -- you forget about your other two roommates as you fuck their friend, bringing her from one orgasm to another. The only thing you are aware of is the two of you grunting with each slap of your balls against her puckered asshole.

"Aw fuck," is all the warning you give before you release a stream of jizz into the blonde's cunt. Her body shiver from the latest orgasm soon afterwards.

"He's still cumming!" Sara notes, looking at you painfully slow your thrusts to make sure your balls are empty. When you finally pull out, 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!" Jen 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?"