Adrienette

LadyNoir is the het ship between Ladybug and Cat Noir from the Miraculous Ladybug fandom.

Canon
They have crushes on each other. Ladybug's secret identity is Marinette Dupain-Cheng and she likes Adrien Agreste but not Chat Noir. Adrien Agreste is secretly Chat Noir and has a crush on Ladybug but not Marinette.

Fanon
Marinette often calls Adrien 'Kitty Cat' or 'Kitty' or some other cat related nickname.

Cat Noir calls Ladybug many nicknames including 'Bugaboo', 'M'Lady', or 'LB'

Fandom
AO3