boneheads. Belly punching isnt a form of birth control OR violence against women. It is a fetish people develope when they are young and witness a form of individual domination through seeing someone punched in their stomach for the purpose of subduing, incapacitating or interrogating. The victims usually being Private Investigators, heroes, undercover cops, damsels in distress, Mob boss victims and the like. If you see the hero on a tv show or movie searching a warehouse and then they are captured by the opposition, it can be arousing or titillating to see the good guy worked over and dominated by henchman or henchwomen punching the hero in the stomach several times, thereby defeating, delaying, or dissuading the hero from their task. It's usually more arousing if the heroes' arms are held behind them and the attacker punches a no more than a few times, suggesting the realism of hitting someone in their belly being devastating. Enough to dissuade the hero, discourage them, or throw them off but not kill them. they slump down to the floor defeated, and the attackers confidently walk away knowing they've done their job. Punching some woman who is pregnant is assault and has no place here. Punching some bodybuilder whose belly cannot be bothered by such attacks is likewise not really sexy. (to me anyway). There are tons of Superhero video clips where the heroine is belly punched to weaken her resolve or defeat her or her will to fight back. That's what the fetish is about. Not hurting someone when they don't expect it, or messing with someone's reproductive area or body building conditioning techniques, it's about conflict and dominance.