I had sex with my girlfriend last night and this morning for the first time. It was great, but we stumbled upon kind of a big problem. Today she had major soreness (maybe not that weird) but she says her bladder also hurts and has to go a lot to the bathroom which is also painful. Now I know a bladder infection doesn't have anything to do with the length of the penis but with the occurence of sex and the bacteria that get more easily to her bladder, but could it be i'm just too deep inside of her? I'm 8 inches long so not extremely long but still. I'm maybe in need of some female perspective on this subject but let me give some background info and explain last night furthermore. She's 18 years old and only had one bed partner that I know of who was slightly shorter then me (maybe inch). Last night when I entered her the first time she could easily take it. She was very wet and I could go all the way in without a problem for her at the first strokes. I know i'm not that thick (5.2 inches) but let's say she wasen't the tightest pussy I have ever been with. So I was really horny at the time so I fucked her pretty hard and deep. Actually I always fucked her the deepest I could, this wasn't hard to do at all, sometimes I could feel the end of her vagina but 90% of the times I could go all the way in. We had sex for about half an hour then we went to bed. She didn't have any problems taking me while I was really going at it and she was screaming of pleasure multiple times (wasen't that awesome at first). So this morning we got to it again. This time she wasn't that wet anymore, but it still wasn't hard to enter her, I fully entered her without a problem at the first stroke and she enjoyed it, never experienced any pain. She felt a little tighter this morning but I could still go all the way in. Again I stayed the deepest I could (that's just my technique what can I say) and she really enjoyed it. I always went fast and sometimes very fast. Still she didn't have any problem with it so I just carried on. Again we had sex for about half an hour. Now we were gonna do it again this afternoon, but when I touched her vagina she told me it hurt too much. I could barely touch her labia or she was in pain! I fingered her with one finger but she was still in pain and couldn't take it so I stopped. She told me it felt like a little piece of skin that was stretched too hard or something at the front of her vagina. What could this be? She also told me she had trouble sitting down this morning but it went away this afternoon. I figured we just fucked too hard and too long but now she told me it already started to hurt her while we were having sex! It started to hurt deep inside of her the second time we had sex after about 20 minutes, when I was fucking her with her legs on my shoulders (which she told me she felt the deepest so she liked it the most). After that we did it doggy style for another 10 minutes, again the deepest I could and the hardest I could because I was about to cum soon and she was just so friggin' hot! I was kinda surprised she let me go on this hard and deep. I didn't want her to be in pain so I asked her if it hurt but she said it didn't. She didn't tell me it hurt her at the time because she was too into it even though it started hurtin her after that. Now for the rest of the day she experienced pain in her bladder region deep inside her pussy. I think I never fucked a girl this hard but she just let me do it without a problem. Is it normal to experience such a tremendous pain at her lips afterwards, even so I couldn't touch her pussy anymore after an hour of sex? Ok I've heard about soreness, but soreness of this kind? The thing is she didn't say anything during sex and never had any problem taking me, she didn't even feel that tight to me! Ok it started to hurt the second time after about 20 minutes but she said she could handle it because it still felt so good inside of her! She tells me that it feels great when I fuck her the deepest inside her pussy, it's her "spot". Could it be she likes it when I hit her cervix that hard? I'm telling you she goes crazy when I go the deepest I can. But is it normal that this constant deep thrusting at the cervix starts to hurt her after 30 minutes or so? And what about her bladder, I couldn't be hitting her bladder can I, because she told me that's where it hurts after a while when I go this deep. So am I too big for her or not? She can easily take it, enjoys it so much but experiences tremendous pain afterwards. Ok we had sex for a long time and pretty hard but still. What about the deep spot inside of her, I want to please her so I always go as deep as I can and she can fully take me but now she told me it hurt her after a while.. Nonetheless she still enjoyed it, but I don't want her to be in this pain right now. Anybody else experienced this of some sort or got some insight? It would be much appreciated because I can't stop thinking about it..