I wish I saw this thread a long time ago! I remember stretching when I was still pretty new too PE and heard/felt this little pop. I probably could've used it to my advantage.
When you stress your ligs too much and they give way by giving a pop sound ! It kinda freaks me out but i like it!! It is responsible for flaccid hang increase in many men
Yeap, do you mind answering one more question: What would you give your erections before the lig pop, right after the pop, and currently (on a scale of 1 to 10)?