text: I'm no doctor, but I am a 21 year old college student, and I know a thing or two about this from learning about it in classes and from past girlfriends. Every girl is born with a hymen, more commonly called a cherry, hence the "popping" of the cherry. It is a blood filled membrane located on the entrance of the vagina. Many girls experience cherry popping while doing things other than having sex, for instance rigorous physical activity or from using tampons. However, if you have never experienced this, you will more than likely experience it during sex. Don't worry, it's normal. Funny story, some of one of my ex-girlfriends friends used to call me a cherry picker after I fingered my girlfriend and her cherry popped. Anyways, when you're having sex I guess it hurts like hell the first time. Your vagina has to stretch out a lot, unless your banging some guy with a pencil dick. if you've ever stuck three or four fingers up our crotch you would know what a penis would feel like. Anyways, i've heard from a couple other chicks that it hurts like shit, but after you've had sex a couple times it goes from pain to pleasure. Its not gonna feel good the first time, but dont worry about banging guys, just get used to it quickly.