When his erection seems hotter and larger in her mouth, she knows he's close, so close to coming, and so she stops what she's doing, ignoring his protests. He'll like this better in the end anyhow, she thinks, and sucks and licks her own fingers for a second before sliding two of them, and then three, into her pussy. She leans back on his lap, letting him enjoy the view if he likes as she finger-fucks herself for a few seconds, stretching her pussy and making sure it's wet enough to take him without a problem.
"You wanna fuck me?" she asked breathlessly, her voice rising and falling as she shoves fingers into her own cunt. He's beyond speaking. He just groans and strokes himself slightly, trying to stay hard and keep from coming at the same time. The sight of that, and the thought that he's remembering how her mouth felt on his dick, makes her smile and turns her on more. It's more than she can deal with without help, so she straddles his legs and wraps an arm around his neck, using the other hand to grip his cock as she lowers herself onto it.
It's not much pleasure for her at this point, because she hasn't built up a rhythm, but he tosses his head back. He's miserable because of the pace she's using, going up-and-down in-and-on on his dick so slowly, but it feels so good to have his cock in hot, tight, wetness that he has to think of football to keep from coming. After a second she's got the movement right, though, and she's riding him, angled so that his cock hits her G-spot, making her gasp obscenities, and there's pressure on her clit with each thrust, and his hips are thrusting to meet her.
And then there's a few confused moments of movement and he reaches up to play with her tits, tweaking her nipples and pulling her down so he can suck and bite on them, still fucking her and being fucked ruthlessly. Somehow, unusually, she's coming firstβthe tightness around his cock gets tighter, and she's still moving up and down. He'd swear it's like fucking a virgin all over again when he times it just right, plunging in just as her muscles are tensing. Riding the orgasm out like that makes her legs shake and she moans, and before thirty seconds has gone by, she's rubbing her own clit and fucking him again, until she has a second orgasm that's quicker but more intense than the first. This one, she simply spasms around his cock, and it's enough to drive him over the edge and back. His lips are on her nipples but he moves to her shoulder and bit down, a little bit hard, but they both moan and he finally comes in her pussy.
He leans back, reclining on the couch and pulling her to lay on top of him, still inside her. She pants a little and wipes the sweat from her upper lip, kissing him once, intensely as she always did right after sex. He plays with her hair absently, and she lays her head on his chest. They know that very soon they'll have to separate and clean up. He can only hope for a little shower sex.