1. Showering before sex: Taking a shower with your partner before sex is a good way to turn each other on, and keep it clean. Lathering each other up gets both of you going and makes for hot, fresh sex once it all goes down. “My girlfriend always showers when she comes home, and if I hop in with her, it gets both of us excited. It’s a big turn on to have sex after that and know everything is fresh and clean,” says Mario from Los Angeles.