Heith

Heith is the slash ship between Hunk and Keith from the Voltron: Legendary Defender fandom.

Canon
It is implied that Hunk and Keith were familiar with one another during their days as cadets at the Galaxy Garrison, but their exact history is unknown. It is possible that their connection was limited through a mutual connection to Lance, who is Hunk's best friend and apparent rival to Keith.

Their first onscreen interaction is when Lance, Hunk and Pidge are helping Keith to rescue Shiro and escape from Garrison personnel. Their team dynamic is established right away, with Keith telling Hunk to lean right and left in order to help his speeder turn.

Despite their opposing personalities, Hunk and Keith get along very well. Keith reacts positively when Hunk hugs both him and Lance and proclaims that forming Voltron gave them all a brotherly bond. Later, at a party, Keith is seen laughing out loud when Hunk is being goofy.

In the show's second season, Hunk and Keith go on a mission together to get scaultrite from the belly of a Weblum. The whole episode is dedicated to their mission, and their bond develops. Hunk is questioning Keith about his newly discovered Galra heritage, sometimes annoying him, but not to the point of conflict. Soon, Hunk realizes that Keith isn't prickly and serious all the time, and is capable of making jokes. Keith's pragmatic and stubborn nature also calms Hunk down when he starts getting nervous. During the rest of the episode, they are seen working together to complete their mission, and at the end, Keith makes a point to thank Hunk for his hard work an bravery.

Hunk teases Keith about his Galra heritage a few more times, but again, never to the point of conflict. its obvious that Hunk is not truly bothered by Keith's Galra heritage, joking about how "Galra Keith" is a lot more fun than "Regular Keith." When Allura is giving Keith the cold shoulder and refusing to acknowledge his work in the Weblum, Hunk speaks up to remind her that Keith was part of the mission too.

Season 1
The Rise of Voltron
 * Before the team leaned how to form Voltron, Hunk crashes the Yellow Lion into Keith's Red Lion, yelling "Combine!"

Return of the Gladiator
 * As Myzax attacks, Hunks runs to take cover, Keith drags him back, saying, "Not you." 

Season 2

 * In Belly Of The Weblum, Hunk talks to Keith about his insecurities about being Galra and trying to assure him that Allura doesn't hate him.
 * Keith comforts Hunk when they are stuck in the stomach of the weblum, making a joke about Hunk throwing up half the time and Hunk responding both shocked and pleasantly surprised at the joke, thinking it's funny.
 * When they return to the Yellow Lion, Keith compliments Hunk. Fans and shippers have pointed out that the way Keith stands and how his voices becomes gentle looks identical to how Lance flirts, making people speculate that Keith was trying to flirt with Hunk.

Season 7

 * In Journey Within, Hunk seems to be the main one who tries to keep everyone together since he knows what it's like to be scared. Keith at first is vulgar and questions why are they even doing there, but Hunk clings onto him and states they are doing what they have to.
 * Hunk is seen dealing with frustration over the situation and how he worries over what has happened to his family. Keith passes by and notices, allowing Hunk vent about his worries and wanting to see his family again. Keith tells him that no matter how many times he feared what they faced, he has never backed down and that his family need him to be strong. This prompts Hunk to hug Keith tightly, causing Keith to react with surprise before smiling softly and hugging him back. Hunk thanks him before the two go out to find Hunk's parents.

Fanon
On AO3, Heith is the 13th most written ship within the fandom; Hunk's third written and as well as Keith's third.

Though not as popular as the others, this ship has a pretty large following, and grew steadily between the first two seasons. Fans like to theorize about their past at the Garrison as well as their possible future relationship.

Most analysis for the ship comes from Keith and Hunk's opposing personalities. Keith is impulsive while Hunk is cautious, Keith is serious while Hunk is more goofy, Keith is the offensive type while Hunk is the defensive.

And there also have been poetic ship names made for Heith. Some of the shippers came up with some alternate names like Sunburst, Soft Burn, Siracha, and Strawberry Lemonade.

Fandom
FAN FICTION

TUMBLR

Trivia

 * Tyler Labine, Hunk's voice actor, has said that Belly of the Weblum was where Hunk and Keith's friendship was fully cemented, and when Hunk realized that he fully liked Keith as a person.