He shakes his head wordlessly, not wanting to give voice to his desires. Not that he has to. His back bows as he slides his own fingers into himself, starting with three, and it's enough to drive another low gasp from him. Immediately, he can feel the slick coating his walls, his fingers, the top of his thighs...

But it's not enough. Frustration darkens his eyes as he looks at Professor Eichel. He's fucking himself with his fingers in slow, firm thrusts, curling his digits to get in deep.

It's good, but it's nothing compared to actually being fucked. Still, it's the best he's going to get for the moment.