InterestingI can't do real porn - at best a video of a belly jiggle. Mental porn though? Hey now!
I also try and write my own fantasy, and many are quite vanilla. I think the most erotic thing for me, and the thing I fantasize about most, is a BHM who is unshakably confident and actually uses his body to torment me. Like, willingly decides to get up over 300 lbs, teasing me that I am a bad FFA if I don't cook enough. When trying to lock up the house to leave in the morning to go to work he would "accidentally" try and slip by me in the hall, his belly brushing against mine, then finally pinning me in place with it so that the fat squishes out around me. Lots of fat teasing, physically and verbally.