Lukloe

Lukloe is the het ship between Luka Couffaine and Chloé Bourgeois from the Miraculous Ladybug fandom.

Canon
Luka and Chloé don't know each other, but since Luka's younger sister is in the same class as Chloé, there is a chance that he might have heard about her from Juleka. While the news has altered him, along with the rest of Paris, that Chloé is the bee-themed hero Queen Bee; and Luka is shown to have respect for Paris' guardian superheroes.

Fanon
While the exact origins of the ship is a mystery, as the two don't know each very well or at all, there is a possible chance that it might be due to Chloé slowly becoming a nicer person since she became Queen Bee while Luka is set to become the snake-themed hero, Viperion. In which would of had the two superheroes working together with the rest of Ladybug's team, if Chloé was still allowed to become Queen Bee without putting her love ones in danger, as Hawk Moth knows who she is without the mask. Making it one of the reasons why some fans have Chloé never reveling her heroin identity to the whole city, so she can remain Queen Bee and possibly form a Ladynoir/Ladrien/Marichat-like relationship with Luka; or with any of their other occasionally hero allies. The light colors of Chloé's colors and Luka's darker colors, might even had fans view them as day and night kind of people.

Fandom
FAN FICTION

DEVIANTART

TUMBLR

Trivia

 * According to Feri González, Luka isn't limited to the role of alternate love interest.
 * The same with Kagami.