Sex with bf help

So I just recently got in a relationship with a guy I’ve been talking to for awhile and it’s great. We have the best time and get along so well.

But lately we’ve been opening up about our sex life and he never finishes (cums/orgasms whatever you wanna call it). Every once in awhile yes. But not every time.

He’s getting frustrated cuz he has never had this problem. And so I feel bad cuz I just want him to be happy.

Any advice on how to help my boyfriend finish? Any crazy sexy tips?