19 Jan Men's sexual health expert Dr Tobias Köhler, of SIU HealthCare in Illinois, revealed to Daily Mail Online that delayed ejaculation occurs when a man has sex for 20 minutes without orgasm. 17 May Dear Alice,. I'm a guy who's had many sexual partners and I've managed to ejaculate through sex only some times. The other times I either just didn't come or my erection went down. I have no trouble getting erect in the first place. And especially now with my new girlfriend (we're in love), I can't get an. 22 Feb Before we get onto exactly how you can last longer in bed, picture this scenario for a minute You're out with your friends in a swanky bar, it's a Friday night and everyone's on a high because it's the weekend. After scoping out the joint, you spot a cutie at the bar, so you swoop over to do your thaaaaang.