I am male/22; when I masterbate I can control how long I last, but with intercourse I cannot last long (last 1 minute). However, my refractory period can be from 0-3 minutes and I can go consecutivly 2-3 times. 1- Is there a reason why I can last longer during masturbation and not during intercourse? And what can I do about it. 2- Is it normal and healthy to go consecutively?