The hippo likes to hold court in calm, familiar waters, while the mountain goat is happiest teetering on an impractical cliff for no particular reason. Together, they can build something sturdy — if the hippo stops sulking when the goat wanders off, and the goat stops pretending altitude equals wisdom. Romantically, there's enough mutual respect to make it work, but 'making it work' is doing a lot of heavy lifting in that sentence. The sex is fine, but someone always feels like they're on slightly different terrain.
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