Can guys really do this?

Me & this guy we're having sex, he had trouble putting it in saying he's only ever had sex doggy style. I helped him get it in. He stroked literally 4 times then busted . I mean I wasn't bothered by it because I know some guys can't last, but when I looked at him he looked at me with a kind of disappointed face & said that he forced himself to cum & he hated when he had to do this. Can guys really force themselves ? I didn't think it was possible but I'm not a guy🤷🏻‍♀️ I honestly think he was a virgin but he kept saying he wasn't 🤦🏻‍♀️