Well, why not...

"Well, why the fuck not?" you say, "as long as you're....mmmmm..." you start saying, looking at Stephanie and she answers by pulling your cock completely out and stroking it in the open.

"No more hiding," she says, looking at you, her blue eyes smoldering with lust. She flashes a look over your shoulder to Katie. "No more hiding," she repeats. Stephanie steps back, letting your cock go and it rises up to slap against your belly. Her eyes shift between the two of you, practically licking down your body as she devoured Katie's subtle curves and the stripe of her red muff. She grabs the hem of her shirt and lifts it, exposing a red silk and lace bra; you love that bra. Her nipples are, if anything, accentuated by the soft material, and that means she was wearing either matching panties or none at all. You aren't sure what you're hoping for more, but you're about to find out as she takes a shivery breath and unbuttons the top button of her button fly jeans. Not enough to reveal what, or what doesn't, lie beneath, but...

"You don't get to fuck him," Stephanie says to Katie. "You keep that slutty red cunt away from this cock," she says and goes back to stroking your dick. Each time she came to the head, the shaft bounced free. Katie steps up behind you. You feel the heat of her body a split second before you feel her tits and then the thin silky stripe of her bush against your ass. And the heat radiating from her still-wet snatch is incredible.

"No?" she asks and touches Stephanie's hand while she's stroking your cock. Stephanie keeps stroking and petting your cock and soon it's Katie's hand making contact even more than Stephanie. Your girlfriend shakes her head.

"No," she says and teases her finger nails along your cock and then up your roommate's hand. "No. Fucking. Him."

You feel her bend in and whisper just behind your ear.

"No..." she breathed and started stroking your cock without Stephanie's hand being on you. She stepped back and popped the rest of the buttons on her fly and very slowly. She licked her lips and your girlfriend's motions matched the slow stroking your cock was getting from your roommate.