Snake/Scorpio and Rat/Scorpio meet at a workable 58-63%, buried secrecy beside open manipulation. Snake/Scorpio is a private time bomb whose watchword is mine; Rat/Scorpio is always out for number one but disarms people by being frank about it. Two Scorpios who each guard their own advantage.
The attraction is strong and suspicious. Snake/Scorpio possesses and never lets go, while Rat/Scorpio's magnetic candor makes even self-interest charming, so the two are drawn together and braced against each other at once. Trust is the whole assignment.
Rat/Scorpio is direct, forthright, and sharp-tongued, while Snake/Scorpio hoards grievances in silence, so one lays the cards down and the other hides them. The Rat/Scorpio acid wit can nick a partner already primed for betrayal.
Both suspect and both keep score. Snake/Scorpio plots revenge and never forgives, and Rat/Scorpio can turn failure into self-loathing and lash out, so fights get personal fast. Learning to trust before the stress does real damage is the task.
Rat/Scorpio can teach Snake/Scorpio to say the grievance out loud instead of storing it. Snake/Scorpio can give the Rat/Scorpio ambition a loyal, private anchor. Both do better judging less and trusting more.
At 58-63%, a workable but wary match of two Scorpios. Snake/Scorpio and Rat/Scorpio can build real loyalty, provided both drop the scorekeeping and the suspicion.