Keep fucking her ass

You haven't pulled out of her tight ass yet, or had your own orgasm, so you clench Samantha's hips tighter and start slamming into her ass again, and she moans and grabs the bed sheets. Your fingers dig into her sides as she moans louder, arching her back against you. You move your hands up from her hips, one hand grabbing roughly at her tits and the other entangling itself in her hair.

Samantha raises herself back up on the bed, thrusting herself roughly back at you as you pound her ass, and your balls start to tingle and your breath becomes faster. "Fuck me John, fuck me!" she moans, reaching a hand back around to cup your balls, and you know you can't hold out anymore.