Cum on her ass

Kate slid a finger down the crack of her ass, teasing her tight little asshole, and I couldn't take it any more. I jerked my cock frantically until it erupted, spewing cum all over her beautiful ass. She watched me the whole time, smiling and teasing. I jerked until I was completely spent.

"Oh fuck," I said, out of breath. I started to take a seat.

"You're not done yet," she said, sliding her finger up her ass as my seed slid down her crack. "You've made a mess, now you have to clean it up."

"Clean it up?" I asked, doubtfully.

"Thats right, I want you to clean up the mess you made of my ass," she said. "And I don't mean with a paper towel or a tissue. Lick me clean."

"Kate, I'm not sure..."

"I didn't ask," she said, and that dominance in her voice stirred something inside of me. "Lick all of your cum out of my crack and off of my ass. When you're all done we can have some more fun."