His finger replaced my tongue on her clit, as I moved to do his bidding. He began moving, thrusting in and out, about six inches at a time while I tasted Gretchen's mouth and played with her breasts. She shuddered through three more strong orgasms, her breath ragged as we kissed.

Quinn whispered in her ear. "Those orgasms were all free. The next ones are going to cost you. If you cum without my permission again, Jessica is going to spank you."

"Please don't do that to me," Gretchen whispered. 'Please don't. I don't think I can take it."

"Nevertheless, you will. Hold it. Don't cum."

Gretchen never had a...