ok, so yesterday my boyfriend came over and we were swimming and he knows that I'm on my period and we were watching fireworks in the pool and he was kissing me and he was touching me and stuff, I'm not a virgin but I was really scared to actually have sex with him because he's really big (9in) and I'm scared im not gonna be able to walk afterwards. any advice??

update: we decided to try since my parents weren't home and we did it in the pool...oml....it was amazing...holy cow.