Sex with my bf

Hi so im a teenager and my boyfriend wants me to meet him on Saturday to get off with him for people who don’t know that means snogging and he wants to give me a hickey on my neck which im ok with on the 7th of August he’s coming to mine when I’m by myself I love him and he loves me and makes me feel special like at the moment hes on a school trip where they can’t take there phones and he got in trouble just to say goodnight and that he loves me we might have sex but I need advise DOES SEX HURT ?? WHAT IF I CANT ORGASM DO I FAKE IT TO MAKE HIM HAPPY? DO U SNOG HIM BEFORE? Please answer this if u have any answers ❤️❤️❤️