Mine takes a really long time. (this isn't a problem for me;) Often he does not ejaculate at all.
I think masturbation is resonable (or at least normal range, not excessive). He doesn't have access to porn as we have a shared computer so I know excessive interests aren't going elsewhere.
I know he enjoys sex, he intitates and is able to get and maintain an erection. He is not on medication, sees the DR yearly, is healthy, doesn't drink and is at the correct body weight.
Any thoughts on this?