Mahito x Transmasc Reader. Excuse my poor knowledge about hrt. mostly mahito being a freak. MDNI.
Mahito adores seeing the changes in your body ever since you've started testosterone. Initially he found it silly that you would try and change your body without his help. He literally specializes in this stuff and you'd get the results you want right away, no prescription needed. Despite that, you insist that you transition properly and safely. In order to soothe Mahito you assure him that he will be able to check up on your bodily changes as much as he'd like, to which he cheers up.
After quite a few checkups, it becomes extremely clear to you which change is his favorite. Whenever you agree to let him check up on you, he always inspects your bottom growth first. He thinks it is just so cute!
"So sensitive!" Mahito coos, lubricating his finger with his own saliva as he gently rubs your bottom growth and intently watches for your reaction. "You've definitely gotten bigger. I'm almost glad you wouldn't let me just transfigure you a dick, it's so cute like this..." He runs his inhumanly long tongue against your cock, drooling a little. He can't help it! You've been so constantly aroused recently, he can smell it, and you always smell so good. He gets off the floor and onto your bed, sitting between your legs. "Let's see..." He murmurs to himself before tugging his pants down to free his dick, pressing it against yours and relishing in the size difference. "So small compared to mine... Cute cute cute." Mahito rambles on, voice high and whiney even as you complain to him how unfair that is when he can change the size of his dick at will.
Then he discovers frotting probably. Might write a proper fic about this I don't know if its too self indulgent. Who gives a freak

















