Sorry, Gwill, but I just got to know. Did you bleach before because otherwise those really funky dyes don't take even on head hair (especially if you're dark)?
I think I already mentioned that I'm very naturally blond, and my head hair accepts colour pretty well without bleaching it (I've tried both). I just happened to have a bit of pink dye left over after doing my head hair. I do a lot of stupid things, but I didn't try risking putting bleach on my crotch.