If the punched Sim is pregnant, they'll have a miscarriage. The most recent version of this mod added a new non-deadly interaction where a Sim can punch another Sim in the stomach. The point of this mod is murder and violence, and you've given the ability to kill and maim in a variety of over the top, gruesome ways. Using the Extreme Violence mod takes it as far away from wholesome as you could possibly get. While Sims do get into fights, they usually disappear into a cloud of smoke, sparing teenage eyes from the sight of violence. Sims don't drink alcohol or have sex they drink juice and WooHoo. Normally, The Sims is wholesome, rated T for Teen entertainment. My Sim, Conrad Pike, was just trying to do some karaoke after work.