Reverse Cowgirl

"Well, I've always been a fan of reverse cowgirl."

Sarah giggles, softer now as she gets more aroused. "I think I should be offended you don't want to see my face. But I suppose I do have a nice butt, don't I?" She slides the straps of her one-piece off her shoulders and slides it down her body. Her back is gorgeous too, well toned and soft. She gets up for a second to slide it down her legs, leaving your cock aching without attention. You do come to your senses enough to use the opportunity to slide your own trunks off.

She leans down and gives you a quick, deep kiss before climbing back on top of you. She takes your cock in her hand and guides it in, sliding down gently. You both moan at the sensation. "Just don't cum inside me, okay? I'm not on birth control."

"Yeah, okay."

She starts grinding, slowly at first - agonizingly slowly - but then building speed. Her speed peaks when the chair starts scraping against the concrete underneath, causing her to slow back down to avoid making too much sound. She keeps riding you while you keep groping her ass, both of you moaning as quietly as you can manage.

"You feel so fucking good," she says softly. "I've been wondering about how this would feel since I first felt you against my butt on that couch. It was all I was thinking about in the pool."

"Yeah? How does the real thing hold up?"

"Good. Real fucking good. I think... I think I'm gonna cum." And then she does. You can feel her start to get more and more tense and then she loses control. She clamps her hand over her mouth to muffle her moans and her riding gets erratic, her legs quivering, her body shaking.

Watching her cum combined with feeling it on your cock has gotten you very close to the edge yourself. You can't cum inside her, but there's plenty of other places to cum.