Captain Swan

Captain Swan

Captain Swan is the ship between Emma Swan and Hook from the Once Upon A Time fandom.

Canon
After their kiss in the last part of the episode 'There's no place like home' Captainswan (Killian and Emma) officially became canon after Emma kissed him outside Granny's diner after Hook told her that he traded his ship for her in order to save her family.

In season 4 they start dating and hit huge milestones in their relationship such as Killian revealing to Emma she is his happy ending or the large, more heart wrenching one when Emma finally admits to Regina and Killian that she loves him before getting such into the vortex of darkness.

There relationship progresses in season 5 where not only do they exchange the words 'I love you' many times, but Killian also gives Emma Liam's ring showing his devotion towards her. Another adorable Captainswan moment is when we find out that Killian bought Emma a house that he hoped they would share with Henry. However they don't get to have the 'white picket fence life' they dreamt of at Killian makes the ultimate sacrifice for Emma and makes her kill him in order to save her and her family. Emma wont let her true love stay dead for long though and travels to the underworld to follow in the footsteps of her parents and split her heart in half, proving their true love and bringing Killian back to Storybrooke.

Season 2
They first meet when Hook is under cover working for Cora.

Season 3
Hook guides Emma and her team through neverland and he obviously has a crush on her even telling her so. However, he is constantly rejected but at one point they did kiss but it was only gratitude although it was extremely passionate. They become friends after they return successfully from neverland. When Emma loses her memories hook tries to see if kissing her will trigger anything but it doesn't. After she gets her memories back they become better friends. Zelena curses hook's lips and tells him to kiss Emma as it will strip her of her powers. Zelena harms hook and tells Emma that the only way to get him back is to kiss him. She does so and it works but she is now powerless. When they are sent back in time they have several intimate scenes including when she has to make out with his old self in order to keep him occupied. After they get back and Emma learns that he sacrificed his ship for her she kisses him of her own will.

Season 4
Hook and Emma are now in a relationship and in the season finale Emma reveals that she loves hook to Regina after hook is 'killed'. Emma later then is unable to tell hook she loves him but at the end when she sacrifices herself she finally tells him before becoming the dark one.

Fandom
During the events of Season 2, Captain Swan's popularity grew after Hook was introduced. After it became canon that Hook has a crush on Emma, Captain Swan became a popular ship. However, the ship had a rivalry with SwanFire, many debated whenever Emma should be with Neal or Hook. But in later seasons, Captain Swan's popularity grew to becoming the most pouplar ship in the fandom.