So I have an idea for a male student.<br/><br/>Your usual young wizard student, he's cute, bashful, and innocent. But he is the host body of an eldritch abomination. It isn' too powerful, but this creature is entirely perverted. It doesn't seem to seek complete control or even power, but rather only pleasure. The more aroused the wizard is, the more control it has over him. It can speak telepathically to him, and in extreme situations, tentacle phalluses sprout out from the wizard's body. They seek only to gratify the creature's base lust, and are not above using the boy's own body to this aim. The tentacles are equal-opportunity, and anything within grabbing distance (to include the wizard himself) isn't safe.<br/><br/>Mostly the idea came to mind because you see plenty of tentacle on shool girl action but never tentacle on school boy. :P