Superheros are known for their bods... so which superhero has the best ass?
Nightwing is the alias of Dick Grayson, aka the original Robin. Nightwing wasn't always taken seriously among comic book readers because of the homoerotic nature of Robin, plus Nightwing was drawn in a way that appealed to women. (Men have no problem with female superheroes who are objectified, but they won't take a male drawn for the female gaze seriously.)
Last week, some behind-the-scenes pics of Nightwing's butt leaked.
Which superhero has the best butt?