When I very first tried to explore fetishes and kinkyness with my partners I felt like I was the ONLY one who had these weird notions of what was fun...the truth is - you really aren't. The best advice I was EVER given by the most amazing girl in the world was:
"If YOU are ok with it - then IT's ok"
...with the "IT" being whatever kink you might be worried about.
So, you like cross dressing... you know most women wear jeans at some time - those were originally considered strictly men's clothes - so why are they wearing them??
Well -'cos we ALL like dressing up, one way or another... I don't want to labour the point too much here - but honestly, find a girl that you like, then when you feel like sharing - just tell her. Be respectful of the fact that she might not understand, or might have prejudices/preconceptions, and that this particular kink of yours might not immediately fit inline with her preconceived ideas of what her partner might be like, BUT if she's into you - she WILL accept it... because in her own time she'll grow to understand that this kink is a part of the guy that she likes.
Girls are WAY better at adapting than we (guys) often give them credit for, so long as you are respectful of their right to have an initial, honest reaction - whether its good or bad, you'll have no problems.