Sex Positions for Him?

Shannon

My fwb lasts a realllyyyy long time during sex. He always makes sure that I'm getting off (multiple times) before he finishes. The problem is that he gets pretty tired. We do missionary and doggy, both of which he does most of the work. We also do cowgirl, but it takes effort from the both of us to make it enjoyable. I feel pretty bad for him, so I was wondering if there's any positions we could try where he doesn't have to do much?