The young card isn't quite all there is to this. To start, I've never finished from oral sex, ever, not in 16 years of getting it. I love it, there is no doubt to that, but I've yet to finish that way, much to the vexation of my SO. I'm a friction kinda guy, so intercourse at certain angles can take care of me pretty quickly, but even that isn't a guarantee.

It may be the same for your guy. If you have the co-ordination, try sliding your hand along the shaft while you are going down on him, and slowly play with gripping him harder. If you notice him showing signs of greater pleasure with a firmer grip then it is probably the same with him as it is for me. In taking care of my own needs I use a grip that would make most people cringe if I shook their hands that way.

Well he sure has NEVER any complaints about the BJ's lol, he finishes those in flying colors, each and every time lol, its when having intercourse that he finishes so quick, that when with oral he can last up to 1 1/2 hrs lol. Thats really my question. Whay is it that he comes faster w intercourse then w oral sex?

Okay, this is just a guess, but... maybe when he has intercourse, he's moving and thrusting the way he likes it. Maybe with oral sex, you're doing more of the moving. Not that he doesn't like it, but you're not going to get the exact speed and angle that he needs every moment the way he will if he's in control. Kind of like the difference between a woman masturbating and someone else pleasing her.

Or maybe he just likes intercourse more.

Anyhow, if you want things to last longer you could google the squeeze technique, he can work on starting and stopping, or he could do Kegel exercises to strengthen his PC muscles. (google kegel)