I have had three or four spoiled orgasms in one sesion, but I have never been drained dry in one session. My sessions ended when I lost my erection after orgasm. Each time, my cock twitched and cum both dribbled out and pulsed out. I went soft within seconds. We stopped the session then, thinking I was in a refractory period. Does the volume of cum diminish noticeably as a guy gets dry? Does it feel different to cum as you are drained out?