Boys please help...me and my bf been together for 6 month going on 7?

we haven't had yet but do other things....I really wnat this to be special, tonight he's coming over and we are going to do it...he's really horny. we tried to have before and I told him that I was kinda nervous so we just end up doing oral. I'm afraid that if I wait to long to do it he will go to someone else and won't want to see me anymore. you think he will?