So my girlfiend and I really went at it last night, and everything was going great. We change positions after a break where I am perpendicular and kind of coming in from the side/bottom, and after I bit she says I am chafing her. I slow down and she doesn't feel any chafing, but after a minute or so she realizes that she's not just super wet, she's just bleeding. This was the first time that she has had sex with any vigor. She had one sexual partner before, but she says that he was a sloth in bed. She never bled her first time (I know not everyone bleeds their first time). So she thinks that the bleeding was from her hymen. I thought it was just a friction burn, but there was an appreciable amount of blood (it leaked out onto my sheets ). Did I pop her cherry? We have tried having sex before, but due to performance anxiety and really shitty Trojan-ENZ, nothing really escalated to any appreciable penetration. This was her first vigorous sex. Was this just her cherry being popped? Should we be worried? Will it happen again if we do it tonight? As an aside, what is a good pre-treatment to get out blood from sheets?