Shurtis

Shurtis is the slash ship between Takashi Shirogane and Curtis from the Voltron Legendary Defender fandom.

Canon
Shiro and Curtis both met in Season 7, Curtis worked on the Atlas and would refer to Shiro as "Captain" or "Sir". Curtis stayed working on the Atlas in Season 8 and aided Voltron in their mission, in the episode "Clear Day" Curtis was seen in the audience, watching Shiro in doing arm wrestling. When Shiro won Curtis is seen celebrating among the others.

In the ending of Voltron Season 8 he and Shiro are married and have their first on-screen kiss - with the Paladins, Coran and others celebrating.

Fanon
Shurtis began to rise after Season 8 as the two are now married, it has some fans but other fans were disappointed as they wanted Shiro to end up with Adam and were hoping Adam was really alive and would marry Shiro in Season 8.

Fandom
Curtis/Shiro tag on Archive of Our Own

Shurtis tag on Tumblr