I have only had a couple of threesomes and, being a sissy and an almost total Bottom, the other guys were all Tops and didn't particularly want to bottom. I'm fine with that, but being in a sandwich and having my cock in a nice tight ass while getting butt fucked is something I often fantasize about. The thought of being double fucked and having them both shoot their loads in me while their cocks were rubbing together inside me is a big turn on too, but I don't like pain and I think I'm too tight to be able to enjoy that.