I used to be a 3 pump chump. Basically, once I got hard, I could orgasm with just a few strokes. When I was young, I could just go again, whether by myself or with a partner. Like, 10 times. Which was totally hot and super fun for everyone! But by the time I was 30, I didn’t recover that way anymore. So, being *done* in 5 minutes annoyed me. I trained myself deliberately.
First thing, seriously, just go again. Just because you had one orgasm doesn’t mean you’re *done*. Get back to work on your partner!
Mostly, I found that using the start and stop method works real good. If you’re into giving oral sex, then you know exactly what to do during your cock’s downtime. Or, when jacking off, I found strokes that keep my cock hard without leading to orgasm. For me, it was to just avoid the head. Stroke the shaft only.
I have used a mild topical numbing cream in the past. It wears off within 10-30 minutes, so basically, if getting hard isn’t difficult, then use of a topical just helps manage the sensations on your cock. If you find a water-based one it works great under a condom. However, you have to be aware that it might also numb your partner for the same amount of time if you are not using a condom. Now, for oral sex this is great - helps with the gag reflex, and I know this from both ends of the cock.
Now, at the age of 42, premature ejaculation is the problem I wish I still had. Basically, I can go for a REALLY long time without cumming at all. Sometimes (most of the time) my partner can’t take it for as long as I give it. Which is emotionally just fine - get them off a dozen times, right? Also, it is REALLY rare for me to cum from getting a blowjob. No one like a sore jaw. So that’s annoying for a partner who really likes to suck the cum out of my cock. (42 year old problems, I guess!)
Anyway, for me it took work. And lots of fun practice. Start with just stroking yourself up to rock hard and then putting it away, several times a day. You’ll want cotton underwear for all that precum, though. ENJOY!