rosy cheeks (слэш)

"That's right," Severus replied, and placed his hands on the boy's chest, rough palms scraping against the soft pebble of Harry's brown nipples, causing another aborted movement. "I told you not to move, didn't I? Never one for listening to the orders of your betters, eh, Potter?"
His boy's cock twitched again and dribbled precum out of the slit that collected in a pool on his bony pelvic region. It was a small cock, after all. A cocklet, rather. Of no use to anyone.