Sex in Relationships

So my boyfriend and I are pretty much having sex almost all the time. I love it. ... but I never actually cum. I always get close to orgasm but I never really finish. And even though I never climax I still love doing it with him. I'm able to make myself orgasm but my bf has never been able to. And I always just fake it with him so his feelings aren't hurt or whatever. I need some advice on how I can get an orgasm through vaginal intercourse. Any advice or suggestions? ?