Heathlegs

Heathlegs is the het ship between Fishlegs Ingerman and Heather from the How to Train Your Dragon fandom.

Season 3
Fishlegs and Heather became official in To Heather or Not to Heather when Heather joined the riders to live with them on the Edge for a few weeks.

Their relationship mainly stayed in the background for the majority of the episodes.

Season 4
Their relationship was touched more upon in season 4 and we saw an almost kiss followed by an official kiss in Gold Rush. Even though Heather soon left Dragon's Edge to join her brother on Berserker Island, she and Fishlegs continued to hold a torch for each other.

Season 5
Heather and Fishlegs were confirmed to still be dating in season 5, although it was never really shown on screen.

Season 6
By the end of the final season, Heather and Fishlegs had seemingly drifted apart due to long distance. They appeared to still be on friendly terms however.

Fanon
It is speculated among fans that Heather and Fishlegs could possibly get back together again in the future due to them still being on friendly terms after their breakup.

Behind the Scenes

 * According to the writers, Heather and Fishlegs were planned to be together since the first season of Race to the Edge. Heather was always meant to be a love interest for Fishlegs.
 * Heather and Fishlegs are also dating in the game Rise of Berk, according to the Valentine's Day promo in 2017.
 * Heathlegs are still an item in season 5 according to a promo picture posted by DreamWorks on the How to Train Your Dragon's official Facebook page.

Fandom
FAN FICTION
 * Heather/Fishlegs tag on FanFiction.net
 * Heather/Fishlegs tag on FanFiction.net

Trivia

 * Douglas Sloan and Art Brown had mentioned that Fishlegs would get into a relationship with someone, but did not say who, and in season 3 of Race to the Edge the answer to that was gotten with Fishlegs and Heather starting a relationship which was short lived due to the writers had to adhere to what was going on at the time of the second film.
 * Fishlegs Ingerman is Hiccup Haddock's best friend while Heather is Astrid Hofferson's best friend.