I like seeing hot girls getting punched in the belly
What would make you like something like that?
Yes, I feel good because I can punish hot girls and it lifts my mood.
I think you might have some issues that need resolving.  Nobody should derive pleasure from seeing people get hit.  Punching people in general is wrong!
I enjoy seeing it and I think a lot of other people do too.
It sounds like a sadistic thing. You enjoy seeing women in pain. You should seek help.