Good or bad...popping sound

Hey guys, is this good or bad...I feel a pop at the base of my penis during stretches. It happens only once during a session, usually a couple of minutes into the stretches. I actually love the feeling but I'm not sure if it's a good thing or a bad thing? Anybody knows what I'm talking about? I did not use to have this experience when I first started peing a few months back, but his has become regular now..any thoughts?

The popping sound is nothing more than air, trapped at the pelvic bone, being released when the suspensory ligament is manipulated as in stretching.

Some guys might also hear this sound when they become extremely erect and they push their erection up or down. It is very similar to cracking your knuckles.

Mike (DLD)