I've made out with guys before (twice in one night, actually). I consider it to have been a good experience, because everything you experience makes you that much more worldly, but unfortunately, it was just really bland. Kissing a guy leaves me significantly - and disappointingly - less frilly, tingly and giggly than when I make out with a girl.

I imagine the lack of thrill makes it less hot for anyone to think about. Alas...