When i first wanted to do it, my piece of meat which never failed me, did just before I penetrated. I was in such despair. I had masterbated without fail with rock hard condition and ended with explosive ejaculation spurting up to my forehead in the past. But it failed me this one time. I couldn't do it for many times after and whenever I see the rubber coming, it will go soft. I seriously thought of going to the docs for a check for ED. Thanks to my girlfriend, her encouragement made me relaxed and because our relationship progress into a more intimate stage, my penis started to work proper gradually. Sex IS GREAT ! Just a piece of encouragement to men out there who thought you have ED... try to relax and enjoy. It took me quite a while to understand this but when you did, you'd be glad.