Samelia

Samelia is the het ship between Sam Winchester and Amelia Richardson from Supernatural.

Canon
Sam and Amelia dated in the year that Dean went missing. They first met when Sam hit a dog and brought the dog to her clinic. Amelia didn't have a good impression of Sam and demanded he take the dog. They later meet when Sam is fixing her sink and she freaks out thinking Sam is stalking her. The two become friends, bonding over their lost loved ones and eventually start a relationship and fall in love. Amelia and Sam move in together and she even introduces him to her father who is at first cold to him, but eventually warms up. Unfortunately, Amelia learns that her husband Don is in fact alive and after learning that Don is a good man, Sam breaks it off with her to give her a chance with him.

Despite this, Sam still has feelings for her and rushes back to her when Dean tricks him into thinking she's in trouble. This strains his relationship with Dean, but he is reunited with Amelia and has sex with her. Amelia decides that she is willing to leave her husband for him, but Sam suggests they take time to think it through first. Amelia agrees that in a few days, whoever is willing to be in the relationship will return to the motel and if they are both there, they will be together, but she asks him not to see her again if he decides not to. Ultimately, Sam decides to stick with Dean and hunting, but unknown to him, Amelia chose him over Don and went back to the motel and was upset to find him not there.

Fanon
By no means a very popular ship as some others, but they were canon for a time. They do have a more than a few posts in their Tumblr tag, and 200+ fanfic on AO3.

Trivia

 * Amelia was Sam's only lover for a period of approximately three years.