Your finger stops short of pressing the button as you keep staring at the massive black minotaur. He is so amazing looking! Seven feet of rippling muscle with horns that are just shy of scraping your ceiling. The smell is not so great, a strong musky sweat/urine odor, but you don't really mind it. Keith scowls at you. "Well, do something! Minotaurs are not meant to stand around bedrooms."
Yeah, he wanted a maze. You stare at the keys, wondering if there is a way to direct whatever changing power is in them. You didn't plan on turning Keith into a bull-man... or did you? It is impossible to keep from staring at him - a creature from ancient mythology alive and breathing in your room. Your friend's annoyance could be dangerous, though. "Uh, do you want to stay like that? I mean, uh, you look fantastic! If I could figure a way to make a maze for you?"
He snorts and stares back at you. "You have a thing for minotaurs?"
"Well not exactly. I never saw a real one before, but..." You trail off, feeling your cheeks get hot.
Keith reaches down with one hoof-hands and yanks at the faded loincloth. It tears away and drops to the floor, revealing the massive sheathed cock and huge, swinging testicles of a bull. He looks down at himself and then feels his sheath before grinning at you. "I can see the attraction. This is fucking awesome!"
Your eyes widen as you take in the impressive maleness of your bull-boy friend. It takes all of your willpower to tear your gaze away and stare at the keys. Can you direct a change? Make him a maze he can wander in? Change him back to his human self? Alter things so he can stay here as a minotaur? You concentrate hard and press the keys.