Yes

The sheer size of the cock pressed against your crack with only two measly layers of clothing as separation convinces you that it's better to make it erupt before it gets inside of you.

Dropping your hips even further onto Kevin's lap, you shift from a slower, circular motion to a faster back-and-forth one. You hear Kevin groan in pleasure, letting out a "that's good", and decide to go even faster.

Using your own experience masturbating as a guide, you stroke Kevin's huge cock through his pants with your ass, focusing on the tip and using more and more **** and speed as you push him towards ejaculation.

Kevin's sounds of pleasure continue, but he shifts from encouraging your actions to telling you to "wait! wait a second!"

Realizing he can't hold back any longer, you feel oddly empowered. You're 'winning' against this asshole, and you'll make him cum whether he wants to or not!

The hot, throbbing member only slightly separated from your ass begins to twitch violently, and you only need one last twist of your hips to make Kevin cum!