>>2946747>tummy spankingNot a thing, largely because the tummy is a highly sensitive spot associated with attacking a female's uterus/guts and female brutality, so it won't feature in any fetish art. Punching a female's gut IS a thing though, because if you are gonna be brutal, you go straight to the brutal shit. Gonna find that content on a whole different board though.
Best you can get is flogging backs and other areas with 3D. Fat dudes are the only ones who use their guts as a bongo. Even worse, since there is no original art of it, AI probably can't help you either, since it won't know what that even is.