Since this question (or its equivalent) has already been posted in both the Wonder Woman forum and in the Superman forum, it seems only fair to include the remaining member of DC's Trinity in on the fun!
I mean, Bruce is the most macho, macho man out there. A man's man. A man's man's man. And he already seems to prefer the company of multiple svelte younger men in form-fitting clothing at his side. And in this ever-changing world of tolerance and acceptance, maybe this move would give him even more relevance?
[/sarcasm]