To elaborate on what Miz Scarlet wrote:
Yes, it is possible for males to have non-ejaculatory orgasms.
It is also possible for males to have more than one ejaculatory orgasm during a single session of sexual activity, although it tends to be more the exception than the rule.
Most males are socialized to believe that it's only an orgasm if they ejaculate, but this is physically, psychologically, and physiologically not true. If it feels like an orgasm (and your friend would know what that feels like for him), then it probably is.
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