Honestly I check out girls way often than I check out guys. That is partly because I like to check out their style if they are hot and maybe learn a thing or two (fashion wise). I am definitely curious but I am pretty sure I will never date a woman. I would love experiment with a girl in all sorts of way but at the end of the day...I'm more straight than bi and it would only turn me on if there's a guy watching.....
PS. That's why I think girls do it in the club anyways....it's all for getting the attention from the guys watching....