Thankfully, with Infinite Crisis, she has recieved her old history back with the expectation of at least a temproary return of the multi-verse. She also has very *ahem*ample*ahem* assets along with a strategically placed hole that, if any bigger, would reveal more than allowed.
Power Girl (talking with Superman): People always ask me why I have this hole right here. They think I'm showing off...or just being lewd. But the first time I made this costume, I wanted a symbol like you.
I just...I couldn't think of anything. I thought, eventually, I'd figure it out. And close the hole.
But I haven't.