Watching films is just vistal stimulation, watching various scenarios play out giving us ideas and suggestions. I've rarely wanted to act out scenes seen in a porn film but can find them exciting to watch. Harmless voyeurism. Maybe fetishes are born from being deprived, I'm not sure but the adult feeding for me, is a strange fantasy. If you look it up, it's has a huge following. I'm not sure how it started for me, is it the need to nurture ? But irl, the thought of actually lactating doesn't appeal. Just the fantasy, although many women go on to make it real. I do remember all through both my pregnancies and while breast feeding, I felt super sexy all the time.

As long as it all between consenting adults in private, then what's the harm ?