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When two people kiss, they form a long tube from one anus to the other
(self.showerthoughts)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
But if we are going by topology logic the vagina isn't a true hole it's caped by the womb init so it's at most a cave
Ears terminate at the eardrum
Urethra terminates at the bladder.
There's a tube connecting your ears to your mouth and urine has to make it from your digestion to bladder
Your digestive tract isn't connected to your bladder with a tube or anything. Any liquid that gets to the bladder went through the kidney first