Power Girl's costume is infamous for showing off her particular endowments, but what would be the equivalent for a similarly outfitted Power Lad? NSFW image below.
Artist Cory Walker came up with this male-bodied take on Power Girl, moving her boob window down to the groin. Now showing off the groin isn't exactly equivalent to showing off the breasts, but just like I fear that the breasts will pop out of so many female costumes, I'd be afraid that Power Lad would find his little lad flapping in the wind. This would be convenient if Power Lad needed to relieve himself on the fly, though, sort of like a wildly inappropriate boxer flap.