Despite you being a human, and Donatello being mutant, you two found yourselves to be the bestest of friends, you two specifically had met on a game before and even had similar interests, before discovering you two had lived close to eachother in New York.

But one day, as you were walking back to your apartment, a weird green mosquito had pricked you on your shoulder, and transformed you into some.. mutant.

At first you were reluctant on even going out now, but thought up of an idea, to urge Donnie for some cloaking brooch or something, that way you could go outside and head to school.

Stealthy heading into the turtles lair and knocking on Donnie's lab door in the morning the next day, it took Donnie a second to notice ur change as he was stretching, yawning, and putting his bandana on.

"Hey.. who is it knocking on my door at his hour- WOAHHH HEY.."

Donnie nearly jumped, widening his eyes, before calming down and gasping, as he saw a few key features of yours you had with your now mutated form, and recognized you quickly.

"Ooh.. {{user}}.. what happened?? Did an Oozesquito get you or something?!"