Bill x MC

Bill x MC is the non-binary ship between Jacob's sibling and Bill Weasley from the Harry Potter fandom.

Canon
Bill and Jacob's sibling met on the Training Grounds when Jacob's sibling was in their second year and Bill was in his fourth. MC was not familiar with Bill Weasley before this meeting, but their best friend, Rowan Khanna, was. When the two met, MC asked Bill to help them train for the Cursed Vaults, which Bill agreed to do. He taught them Incendio, the Fire-Making Spell.

After training, Bill and MC went to the icy staircase, where MC had gone before with Rowan. Bill was affected by the ice, although he suffered no physical injury, and was rather mentally drained. Bill went to the Hospital Wing following this event, although he dismissed MC's concerns and wanted to try again. They decided to try to go to the Vault again, this time with the help of a third friend (either Rowan, Penny Haywood or Ben Copper). At an unknown point in MC's second year (or a later year considering the timed side quests usually have timeline inconsistencies), the Weird Sisters, consisting of only three members back then, wanted to hold a performance at Hogwarts and wanted Jacob's sibling to join them. At one point, Jacob's sibling admitted they fancied one of their friends, and one of the possibilities was Bill Weasley. Myron Wagtail, lead singer of the band, agreed not to tell anyone about the feelings.

Bill's Head of House, Minerva McGonagall, was furious after hearing Bill had taught the Fire-Making Spell without permission. Because of this, Bill was worried that he would not become the next Gryffindor male Prefect, but Jacob's sibling made him feel better. The following year, Bill told MC that he had become a Prefect, and showed them his Prefect's badge.

In his fifth year, Bill had a crush on a girl in his year called Emily Tyler. He asked MC for romance advice, and asked them to go talk to her for him. As they did so, it turned out Emily disliked Bill, angering MC. MC returned to the Three Broomsticks Inn and told the truth about Emily, making Bill sad. MC could make Bill feel better.

When looking for clues for the second vault, MC found his brother's room, which was closed with a lock that belonged to Tulip Karasu. When talking to Tulip, MC could choose one friend to come with them, and one of the options was Bill. If he came, he told MC that he knew Tulip was a Ravenclaw in MC's year who was always in detention.

As MC went to the Vault of Fear with Tulip Karasu and Barnaby Lee, they could choose a fourth friend to come along, and one of the options was Bill Weasley.

In their fourth year, MC befriended Bill's younger brother, Charlie Weasley, who was in the same year as MC. Depending on MC's choices, Bill could join them and Charlie in sneaking into the Forbidden Forest on several occasions, one being the time they went to the Forest Vault.

In his seventh year, if Jacob's sibling had managed to become a Prefect, Bill showed the Prefects' bathroom to them and Charlie, who had also become a Prefect. He also invited four former Prefects to drink butterbeer in the Three Broomsticks Inn with them.

As their O.W.L.s were approaching, MC went to the Library to study with Bill, who was preparing for his N.E.W.T.s, and his younger brothers Charlie, who was also studying for O.W.L.s, and Percy, who just liked studying. This was the first time MC met Percy.

When MC was searching information from the House Ghosts, Bill, Charlie and Percy joined them in talking to the Gryffindor House Ghost, Nearly Headless Nick. Bill and Charlie later joined MC in the Prefects' bathroom, where they talked to Duncan Ashe, a ghost who had attended Hogwarts at the same time as Jacob.

Fanon
While not extremely popular, this pairing has some support, and some felt jealous when Bill revealed he had feelings for Emily Tyler. However, as Bill is known to end up with Fleur Delacour, he is generally not the main choice of love interest among players. Many would prefer Barnaby or Charlie as a male love interest.

Fandom
FAN FICTION

Trivia

 * The ship can be considered either het or slash depending on Jacob's sibling's gender.
 * Bill is the second possible crush for Jacob's sibling, the first being Penny Haywood. Bill is also the first male love interest for Jacob's sibling.