Tips for a Virgin!

Hey there! My boyfriend and I have been dating for 9 months and we’re both virgins. Every time we try to have sex my body gets all uncomfortable and tight! Even though we’re both always in the mood, having sex is a big obstacle for us. I just need a few tips that I can use for next time! I don’t mind being a virgin, and my boyfriend could care less if we have sex but I just think it’d be nice to have. Idk if it’s me or his penis size but I just need to know how I can feel comfortable enough to ignore the pain. Any tips would be awesome! Thanks!