My girlfriend wants to...

fuck me in the ass with her dildo! I must admit the thought turns me on. We've talked about threesomes and stuff but I don't want to share her. We talked the other night and I told her to guess who I'd most like to have a threesome with. She guessed her twin sister and I admited it. Ever since then the sex has been great.

I once fucked her in the ass, as punishment for hurting her she wants to fuck me in mine. I really want her to, but how can I tell her this without sounding sick or gay??

Please reply.:yellghst: