Sex is gross...

😂 😂 😂 😂 😂... This your question is very funny. You can Google it to know exactly where they put in 😂.

There are many websites where you can watch it online and see exactly how they do it since you're asking where they put it.
Sex is only gross when you're doing with someone you don't have any emotional feelings for. Also, it can be gross if you're doing it with a partner who's not good at keeping himself or herself neat.