After masturbating for years, I have found that even after I ejaculate, I am able to continue without hindrance for several minutes and get what I perceive as a second, third, and fourth orgasm, and sometimes more. I was wondering if I am not counting right or have some sort of problem, or if I am just really lucky. There is a point where I cannot go further, but it's as much as 10 minutes after I start to ejaculate.
The usual thing that happens is once you ejaculate, you simply have no interest in continuing. You're done. You also feel tired and satisfied. Plus, your penis feels especially sensitive, so you just don't want to stimulate it anymore. However some males are willing and able to continue without stopping, which often results in another (weaker) orgasm shortly afterward. And apparently some, like you, can have several. But most of us are fine with one orgasm, followed by a pleasant resting period.