boyfriend loves sex, I dont

hey, so ive started dating this really sweet guy and we have been together for over 2 months now. Problem is, he wants sex like every time we meet up. I am totally ok with the other stuff (in fact i really want it) but the actual sex doesnt do anything for me, it doesn't hurt but i dont feel any pleasure out of it. And the fact that he lasts a while doesnt help, it makes it more daunting. Is there anyone else with this problem? What do i do?