I am suffering a problem of erectile dysfunction. Doing oral sex my penis erect but when I ready for insert it becomes loose then I shake my penis with my hands ,it becomes tight and then insert , 10-15 times insert , it started to become loose , i don t know why i do this process at least 3-5 times and when I have a mood of discharge i shake my penis as I reach on the discharge stage I insert it again. Doing sex like this.Kindly help me to sort out this problem.Medicine ;- Tentex Royal took 20days , not so much benefit , it seemed to myself that I am addicted . So leave to take . I took homopathich treatment but not so much benefit. I am an athlete also . Don t take cigrate, smoke ,alcohol, meet and even egg. I took masterbation a lot before marriage. May be due to this only i got this problem.Kindly help me to sort out this problem.Regards Vicky