My Boyfriend is a sex machine. Help!

I have been together with my boyfriend for 2 months and there are still a lot of his sides that has not yet revealed by me. Last night I went out with him and his friend 'Leo', and Leo mentioned that my boyfriend used to have a friend with benefits and they have sex for straight 2 HOURS!as a gay man, i enjoy sex not as much as i enjoy porn. I like sex, but it really gets uncomfortable at some point (i bottom) and I really wish my partner could climax already. And now knowing that he is a horny sex machine that goes for hours and hours, it just made me panic and anxious that I wouldnt be able to make him happy.any suggestions? thoughts?