I had that problem the 1st number of times I had sex. Then I reached puberity! Nowadays if I'm drunk on some gin I can last what seems like forever, but I always cum. Also, some ladies did not have the oral talent to bring me to completion, but most do.
Good point, but I'm just happy when she is willing, so I make sure to hit all the right spots, help her have multiple contractions and finish before she wears out!!!LOL!!!