Snake/Sagittarius and Snake/Gemini entwine at 82-87%, the same subtle Snake in two Western keys. Same-animal pairings open with instant fluency, and here the fluency comes with a twist: two professional readers of people, now reading each other.
Snake/Sagittarius needs a partner it cannot quite make out, and finds in Snake/Gemini a quicksilver charmer who never fully resolves into focus. Snake/Gemini, easily bored, meets the one admirer whose uncanny perceptiveness makes its old tricks useless and its real self, for once, the interesting part.
Two Snakes converse in implication and are fluent in it. Snake/Gemini sparkles with aphorisms and limitless trivia; Snake/Sagittarius reads the subtext like a see-through comic book. Games of wit stay playful because both know exactly when to stop.
Friction lives in shared vices. Both run a touch lazy and self-indulgent, so ambition can nap for months, and two charmers accustomed to being pursued may each wait for the other to do the committing. Stalemate by elegance.
Snake/Gemini learns depth from a partner who saw through the surface on day one and stayed anyway. Snake/Sagittarius learns play, and to stop resting on its laurels while the race runs on. The doubled Snake instinct becomes quiet, amused teamwork.
At 82-87%, Snake/Sagittarius and Snake/Gemini are strongly compatible. One serpentine nature in two clever costumes; someone still has to propose before the mystery does all the work.