It's a little awkward, just grinding his palm against the growing bulge he can feel, but it seems effective, so he'll keep going in that same slow pace. He can feel Professor Rammsteiner getting harder, the bulge growing more prominent. His mouth is dry as he imagines what it'd feel like to have that cock inside him.

He doesn't think that will happen today, with how hesitant Professor Rammsteiner is. So he'll have to find his own release in another way. Carefully, a little tentative, he grinds his hips forwards, half-hard cock dragging against Professor Rammsteiner's thighs. The fabric of his robes and the fabric of the sweatpants are in the way, but it's still...not bad. He repeats the motion, testing Professor Rammsteiner's boundaries. Already, his pulse is racing.