Why do you bug lesbians? I mean really. They're lesbians, which means they aren't going to date you, ever. So why do you continue to flirt/hit on/harass them after you find out that they're lesbians?
I mean, as a bisexual dude, I totally understand the 'woah... *drool*' factor of two chicks getting it on together... but it's not that hard for me to shut my mouth and keep it in my head.