Chastity
You try to put your toe inside a shellfish, but it just won't open. That's because this shellfish has sworn an oath of chastity.
"No, I won't open up until I meet the toe I will marry," it says to you.
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"Chastity is really important to me," the shellfish says. "But, maybe if you give me a tater (てい) tot, I'll change my mind."
You give the shellfish a tater tot, and it breaks its vow of chastity, opening up for your toe. You look the other way, but you can hear the sounds of passion below.