Rooster/Sagittarius and Monkey/Scorpio pair at 73-78%, the compulsive truth-teller and the artful embellisher. Rooster/Sagittarius cannot tell a lie that sounds like one; Monkey/Scorpio prefers the words streamlining and borrowing, and knows exactly what it is doing.
Monkey/Scorpio cannot abide a pushover, and Rooster/Sagittarius, sunny but immovably honest, is nobody's pushover. That guaranteed clash of wills is, for the Monkey, the whole attraction. The Rooster, meanwhile, finds the Monkey's cleverness dazzling and its spin detectable, which keeps both of them sharp.
Every conversation is a friendly audit. The Rooster states the plain truth; the Monkey embellishes it back, improved; the Rooster, constitutionally unable to let that stand, corrects the record with a grin. Sparks, mostly the good kind.
The same audit turns hostile when stakes rise. Monkey/Scorpio's streamlining shades toward the wrong side of the line, and Rooster/Sagittarius will not cover for it, cheerfully and publicly. Trust is the currency, and only one of them prints it.
Monkey/Scorpio learns self-control and the value of a partner whose word is granite. Rooster/Sagittarius learns the white lie's gentler cousin, timing, and that not every truth needs trumpeting at once.
At 73-78%, Rooster/Sagittarius and Monkey/Scorpio have good chemistry: honesty and cunning keeping each other honest and interesting. It lasts while the Monkey stays on the right side of the line.