Care for a ride?

"Ooh, that sounds like fun. What's the charge?"

"One black piece of lingerie. Just put it over there." You wave at a random place in the room. Sarah giggles and pulls her lingerie over her head. Her breasts bounce pleasantly as she does so, and she looks at you expectantly.

You slide out of your pants and shoes, and lie back on the bed. She moves over you, and lowers her breast to your mouth. Without saying a word, you take her nipple into your mouth and begin sucking on it. Sarah sighs and lazily rubs circles around her pussy. She switches tits from time to time, and soon, she pulls away.

She puts a hand on your chest and looks at you. "Listen, let me do the work tonight, okay?" She reaches down and lets her breasts brush your chest before pulling back up and slowly lowering herself onto you.

The sensation is amazing. The warmth and softness of your girlfriend amaze you, and her skill (honed by a year of practice) is unmatched. Soon you feel her vaginal muscles massaging you as she rides up and down, milking your dick.

Eventually, you feel the cum rising to the surface