We did something like this on another site, for another series:
Come up with the strangest pairing you can, and JUSTIFY it.
Just a little fun, no bashing, no "he belongs with X" please.
My first thoughts:
Jango/Morgan. Both are filled with hypnotic suggestions, just waiting to go off at a trigger.
Chess/Kuromarimo. After being together, they had to BE TOGETHER. XD
Miss Valentine / Alvida. They met at a gym, discussing their weight-loss secrets.
Butchie / Nezumi, cos cats love to chase mice!