Panty sex is a popular sexual fetish among Internet porn lovers and is relatively unknown to the mainstream. Panty sex is simply sexual intercourse while wearing the female wears her panties. The girl wears her panties and the guy pulls them aside and performs intercourse. Some guys like the panties tight while other guys pull them practically off. Some of the reasons panty sex is popular because some like the feeling of the extra friction, the idea of no-permission sexual activities, and the visual imagery of girls in their panties.