Is it normal for a man to go long periods of time while having sex without finishing?

I've had successful orgasms from oral sex, but it doesn't work when I have intercourse. I don't think there's anything wrong with me, but I wonder why this is happening. I like them both equally as much! It's really frustrating -- can you give me some advice?

I'm willing to put in the work when it comes to giving a blow job, but it would be so helpful if someone could tell me what exactly men like.