IT WOULDNT GO IN.

I'd been dating this guy and we tried to have sex on 2 occasions. (I'm not a Virgin by the way, so this makes it all the more confusing for me) the first attempt, it wouldn't go in at all! I gave him the best head of his life so he was completely hard and ready to go, and I was aroused from him going down on me as well. I thought maybe I was just nervous and clenching my vaginal muscles unknowingly because I had only been with one person before him and that was 2 years ago! The second attempt was just horrible. He was hard but he just couldn't get it in & eventually went soft. I was so frustrated & on the verge of tears. What's wrong with my vagina 🙄😂