The OP does not state whether or not he is circumcised. If he is not then there is a simple method (which worked perfectly for me in my more vigorous youth, when I had the same problem.)
If he is not circumcised, then he should pull back his foreskin and keep it retracted; this will probably result in some slight irritation for a few days until his glans penis gets used to its unprotected contact with his underpants, but will not last long. However the result will be that his glans penis is slightly desensitized and will not react to the stimulation of intercourse or OWO so quickly.
When in my late teens I first started experimenting with sex I found that I only had to touch a naked girl and I was squirting all over the place, and when I mentioned this to a Jewish friend he laughed, and explained that Jewish men never had that problem, and ritual circumcision was all down to Eve exercising her womens` rights to enjoy sex as much as men - all nonsense, of course, but I decided that keeping my foreskin retracted would probably work just as well, and it worked like a charm, and after a couple of months I found that I could keep going for as long as most girls wanted, and by the time I was married I usually kept going for half an hour or more - of which my wife always took full advantage.
Until I had to give up last year I was still able to keep going for half an hour or more - one youngster, after her second orgasm, asked "Where the hell do you get all your energy?"
I still "wear" my foreskin retracted, and although at my age and with all my health problems I can no longer achieve a proper erection (and certainly not fuck a girl) I can, with gentle oral or manual manipulation feel all the pleasurable sensations, and even manage a mild orgasm.