Cuckold fantasies

I suspect this is just my severe sexual frustration shining through, but over the last few months, I have had increasingly many and vivid cuckold fantasies.

O, how I wish my girlfriend would bring home a muscular black dude with a big cock and make me watch as he bangs her brains out. Forced to sit in the corner and watch in horror as her pussy gets stretched and hearing her scream in a combination of delight and pain. Writing this makes me hard.

I love every bit of this fantasy. The humiliation, the sexual perversion, the big cock, the GF's pleasure, the bull's pleasure, the humble servitude. Licking her juices off his cock. Licking his juices from her pussy. Helping them clean up. Helping her dress up sexy for him. Him owning her pussy and rubbing it in my face.

I also fantasize about being the bull for someone else. Perhaps something I'm more likely to do. I'm a pretty fit, strong, attractive guy, with a decent size cock. So probably a more natural role for me. Would love to tell some hot wife's sissy husband what I think of his tiny excuse for a dick while his wife's sucking my cock. O the things I would do to him. Make him watch as I finger his wife in a restaurant. Make him pay for a hotel room and wait in the lobby while I go upstairs and fuck her all night long. Get him to clean up the kitchen so I can fuck her on the table. Tie up his dick so he can't even get a hard on. Disappear for a few weeks with his wife to some exotic location only allowing her to phone him when my cock's in her pussy and then only allowing her to use selected phrases like "O his cock is so much bigger than yours". Making him eat my cum from her pussy. I could go on and on and on...

I wouldn't even think of discussing this with my GF, because I know she won't be interested, but god I love thinking about it. And there's some pretty hot porn available in this genre that I don't mind jerking off to at all!

Pretty sick, when I think about it I'm not sure why this actually turns me on. Not sure if this is something I would ever really do either. Maybe just a fantasy thing, but one thing I do know is that it makes me hard faster than you can say big black cock.