The Usual Fight

I DO NOT OWN THESE CHARACTERS, ART OR SONGS! IT IS A FANFICTION!!! Please let me know who the artists are so I can credit them :).

Batman and The Joker somehow end up trapped in a closet together. But before Batsy can figure a way out, he encounters a little problem. Through all the struggle, Batman's knee ends up in The Joker's crotch.