The ship name is in reference to Plagg's only eating Camembert, a type of cheese, and Tikki eating only sweets, like cake.
It's generally shipped alongside any of the Marinette/Ladybug/Adrien/Cat Noir combinations, and while not extremely popular, it does get mostly good attention. It's also confirmed by Astruc they will get more interactions. On different occasions afterwards they are seen together and Plagg has the pet name 'Sugarcube' for Tikki.
Plagg asks Tikki to dance in Sandboy.