Ok one night after a party me and this girl started fooling around i got her into bed and we fooled around i got erect.. as i put the condom on i noticed that i couldnt get completly hard we tryed to get it up for another 30 minutes.. and it would just get softer.. i think it might have been becuase i came when she gave me oral.. and since we are on that point i cum in like 2 mins when getting oral. that i can live with but 5 months later i have a girl on my bed and the same thing happens.. i dotn know what to do. is masterbation a part of it. please help