Harsh, aggressive foreskin stretching and pulling back.
Here is a vid of me aggressively jerking back my foreskin, then once stretched back, I grip it and stretch it back even more. I love the sharp tugging, stinging feeling of the inner foreskin stretching and pulling away from the glans in the groove. One day, this area in the sulcus groove might tear and split. If you look closely, you can see how stretched the groove has become, also the join line is more apparent where the shaft skin joins the glans in the corona.
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I used to do this a lot when I was younger. I always loved the tension on the glans when the foreskin was retraced violently and completely and held in place so the head would bend over.
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My skin has stretched over the years, even the frenulum has become elongated. I have to be careful with the harsh jerking as there is a small cut in my frenulum which occurred during a bdsm session some twenty years ago or so. When I too was younger, I loved the painful tension of the tight shaft skin being stretched and pulled away from the glans. Now the skin has been overstretched thus creating a deeper sulcus groove. One day, I am sure, the skin will split snd tear along the line where the inner foreskin joins the glans. I would like to know if that join line has an actual name.
