When three young women in corsets showed up wielding daggers, I figured I had the right Sims. Of the two gangs available, I was interested in the Thotties, who are essentially a roving band of young women who seduce and then murder Sims.
With Extreme Violence installed, you have the ability to summon gangs to whatever lot you're hanging out in. This mod is elaborate, giving the player not just murder tools but brand new game mechanics as well. 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.