Losing virginity for girls

[ravelda]

I don't think this has been answered here yet. I'm writing a scene where a girl loses her virginity. I would like to know how many girls do/don't have an orgasm the first time they have sex, and how many feel pain from their hymen. I Googled different phrases, but I found a lot of porn sites and sketchy information. Not what I'm looking for. So... if you want to help, please share what you know. You can post anonymously. Thanks!

ETA: Thanks so much for all the replies! This will be a big help in writing my scene.