He was so big I bled

Ari • Screw the sexually active band geeks I'm here for The sexually active theater nerds
Hey guys so I had sex with this guy with a 10" dick (maybe bigger) and I started bleeding, i looked it up and it could be cuz he was hitting my cervix or because I wasn't wet and relaxed enough but it also could be an std thing... I've never had unprotected sex but still wondering if i should get checked out