For several long seconds, neither of us moved. His cock twitched violently inside me, as if my confession made him even harder. Then he let out a low, broken sound—half shock, half raw hunger.

“You… what the fuck,” he whispered. But he didn’t pull out. If anything, his grip on my hips tightened, holding me in place on his throbbing length.

I turned my head slightly, meeting his wide, darkened eyes over my shoulder. My cheeks burned. My pussy fluttered around the thick intrusion. “I should have said something sooner… but your fingers… they felt too good. I couldn’t stop.”

Mark’s expression shifted. The initial horror melted into something darker,...