People often like to do this most, both on porn and in real life: they like to penetrate. There is a lot of pre-play in sex and sex in porn. Yes, it does heat things up and get you even more excited. But sometimes it's not the buildup or getting more and more aroused that's important, it's the climax that leads to the orgasm. Penetrating the pussy or the cock being pushed back and forth inside the vagina is what this type of porn is all about. People who have never done it before usually bleed the first time, but for pros, it gets easier and easier to use. It's common in porn and a lot of people do it because penetrating is the only act of sex. Before porn made foreplay and fetish famous, penetrating the pussy was the only act of sex. It's all about cumming in her pussy—that's how human bodies work. Each person has a long, hard shaft inside them, and each woman has a hole inside her. It all makes sense—they were meant to be together and for each other. That's why this has been done for generations; it's how they make babies and how people spread.