The guy who plays Sue in the MMORPG is later revealed to be a guy who basically plays ANY female superhero who has a revealing costume - We later see the group having an argument over him using the Morrison-Era Emma Frost costume, I think?

So.. Yeah. I think the basic notion is that the guy just picks dozens of scantily-clad superheroes, much to the chagrin of his fellow players; So this could be, like, an outfit Sue wore for a day, and we never saw it.