Why ARE there four mutant turtles standing in your living room?
Training goes south real quick when Leo and Mikey decide to combine their powers. Opening a portal to somewhere they thought would be in their universe. Not outside of it. Y/n is a huge Rise fan, think of someone who; has their merch, the dvd's, even read a couple fanfictions. Not once did you expect them to end up in your living room.
RotTMNT!Leo x gn!reader
Book One of Fireflies