I have a similar fantasy but it involves playing slave and not necessariliy humiliation.

I fantasize about being an 18 yr old skinny blond lesbian and my "GF" has a strapon and wants to "punish" me and I am tied and so on.

I feel silly ever asking a real girl to act this scene with me since i am a guy but gosh it is such a turn on for me.. to be violated by a girl like that!

conversely I like to switch and let her play the slave also.. while I 'violate' her that way.. even Bigger turn on!

I wonder what prompts such fantasies in us?

Its almost like I feel that there is a movie reel running in my head constantly with that scene playing