I had this same ability as a young man. I always would cum too soon and would worry about it a little. then I was fucking this gal one night and came pretty quick, and I just stayed hard, and kept going. I found that this ability made those "hard to cum" women cum. my size and my staying power got me a reputation. I gave a lot of gals their 1st orgasm and their 1st multiple orgasms. my wife, then my gf, fucked a 1/2 dozen guys before she had an orgasm, and after she stopped quivering and realized I was still rock hard, she climbed on and tried to ride me til I came, but I had stubborn cock, and I flipped her back over and hammered her til she came twice, back to back. she could barely stand up when I took her home that night. after that she was super horny all the time. it was like unlocking a monster. I told her that, and she said she knew, it felt so good, she thought about it all the time, she was "wet" almost constantly, and we fucked every chance we could.
enjoy it will you can. like all good things, it will end. but it sure was fun. I have good male friend that I hang out with and drink beer. we talk about past sexual escapades, and let's just say this guy led a sheltered life. he's slept with 3 gals and never been married, and I slept with about 50 BEFORE I got married. he doesn't believe me half the time, and one night we saw a gal we both new, and I used to fuck on a regular basis. he did not believe me. she worked her way thru the crowd to us and we talked. after a few minutes, he blurts out, "he says he used to fuck you." somewhat embarrassed, both of us, she says, "yes, many times, he's a good fuck", which startled my friend.