One of the things that can fail aman is cowardnesshe feels he might not do it properly may be whn the woman is too big and fat or looks so s*xy like gals or might be he feels his wn't make it coz it is too short u may also fear to be found as in the case where u r doing it in anon private area

It is very sad and tearfull to find that something u have pestered for long now prove u totally useless becoz ur man can not stand strong to make u proud