Listen, it's not about how much you lift, it's about regular routine and constantly improving yourself. For example, some preds have been training those anal muscles for ages. That's why it's so hard to pull free once you're in. :9
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Some silliness cause the idea popped into my head. x3
Oh and, obligatory followup.
Gotta be careful how much you're holding someone down versus pushing them in! When your hand is near someone's hole, who knows how quickly you could disappear...















