Quirk Malfunction (one shot)

It's second year at UA. Deku's been receiving serious training from Almight and Gran Torino. The more he trains he becomes bigger like Almight. His muscles are only slightly bigger, but he's way taller and unlike Almight he only has one form. He might get two if he passes his quirk to someone else, but that's unforeseeable. His training is going great, until the past user's of one for all recognize him as a good user and push him to act on his biggest goals or greatest desires if you will. Now there's nothing wrong with that, but what if his desire is Kachaan. His quirk starts malfunctioning in different parts of his body, making him unable to control those body parts for small periods of time until he is satisfied.

Deku wants Kachaan. There's no preventing it, unless Deku is to live with a quirk that won't listen to him for the rest of his life.

(One Shot)
Mature
Completed
TW: Pain inflicting, Spanking, Crying, Choking (not for very long, I can't do angst and sad shit)
A little riskay with the consent at first, but he gets it before they actually do it.
Fluff at the end.