A strict Japanese teacher loses control as her students take her to the edge.

Ian became aware enough to turn away, but Silas grabbed a fistful of hair and turned his face back to meet Silas’s crotch. “Or just between.”
“Between. XXX For the first time, Ian didn’t fight the command he was given. “Let me hear you.”
Ian stopped holding back and sobbed loudly, and Silas’s pace picked up. “I’m doing this so you’ll remember, so there’s less I have to repeat next time. He pulled back and released Ian’s arm, and watched as the boy tried to distance himself from the edge of the bed where Silas stood, rubbing a hand over his wet member. The amount wasn’t terrible—Ian had bled much more the first time, and Silas had learned to lubricate himself more. Silas braced himself on his arms on either side of Ian, keeping him boxed in, and grinding his hips as hard and deep against Ian’s as he could.