Silently stop him

Grabbing his wrist firmly, I removed his hand from my thigh giving him a death glare.

"Don't ever do that again!" I hissed at him.

"My mistake," he replied glibly, holding both hands up in front of his shoulders. "After last time, I though you wouldn't mind a little light petting."

"Well I do, so kindly fuck off!"

Instead of fucking off, Brandon stayed next to me for the rest of the lecture. Seemingly unfazed by my reprimand. Jessica looked at me quizzically. I just shook my head, I would talk to her after class.