Gary Wilson in his book "Your Brain On Porn" said " Unaccustomed premature ejaculation Although rare when compared to ED or delayed ejaculation, heavy porn users do sometimes report this symptom. Premature ejaculation from porn use may seem counterintuitive. Two possible explanations come to mind. Perhaps a guy has trained his nervous system to ejaculate very quickly (or while partially erect)." if I has traind my nervous system to ejaculat very quickly, what would be the soluation?