Hi all. Well I have this problem where when I masturbate right before I ejaculate It feels like its trying to hold back. Like it tightens up for a few seconds while it trys to get past. While those few seconds happen my abdomen(not sure if thats the right word) But right above my penis it feels like its twitching for the few seconds. Not sure what could be wrong. Is this normal or is there something wrong. If anyone has any ideas on how to fix it or something that be nice. Been happen for like a month or 2. Any help would be nice.