I have done it. I was involved with a couple and I am coming to terms that I am bisexual. I haven't ever had anal with a guy and that's a little far fetched for me but giving and receiving head is not such a bad thing. I have never completed the act or anything but it's interesting eating a girl out while they are being fucked. Of course I don't run out and do this with any guy and it's been a long time since I've done it but like guthmund said, they have to be very clean, and very cute. It also helps if there is a girl involved. I like to take sexuality to new levels and not to be stuck in the same rut. This isn't for everyone of course but for me it's kind of exciting