QUESTION !!! PLEASE HELP !!!

So, my boyfriend and I have been together for 5 years next month, we've been having sex for about 2 years now, and it's getting really good, like we are both to the point where we've had some experience and we know a little bit about what we're doing. BUT everytime I'm almost there he's finishing... it's not really a big deal to me, but he knows that everytime he leaves I finish the job on my own.. so.. I was wondering if there was anything I could do to help me get there sooner??