Wolfstar

"Lupin was lowering his wand, gazing fixedly at Black. The Professor walked to Black’s side, seized his hand, pulled him to his feet so that Crookshanks fell to the floor, and embraced Black like a brother"

- Remus reunites with Sirius

Wolfstar is the slash ship between Sirius Black and Remus Lupin from the Harry Potter fandom.

Canon
Sirius and Remus met at Hogwarts in their first year. They, along with James Potter and Peter Pettigrew, became close friends, collectively known as the Marauders. They (except for Peter) were known to be exceptionally bright students with a passion for mischief and were generally well-liked by their teachers and peers.

In their second year, Sirius, James and Peter discovered that Remus was a werewolf. At some point, James, Sirius and Peter decided to become Animagi (a wizard who can transform into an animal at will), as this would make werewolf transformations more bearable for Remus, By their fifth year, Sirius completed the Animagus transformation was able to become a shaggy black dog known as Padfoot, along with James who became a stag and Peter who became a rat. Every full moon, Sirius and the others would sneak out and meet up with Remus in the Shrieking Shack.

After they graduated from Hogwarts, they joined the Order of the Phoenix together. However, when they became aware that there was a spy in the Order, Sirius had suspected Remus. This led to him not telling Remus that he had switched places with Peter as the Secret Keeper for the location of their friend James and his wife Lily. As such, when the Potters were betrayed, Remus (along with the rest of the country) believed Sirius was guilty. At the time of Lily and James' death, Remus was in the north of the country on Order of the Phoenix business when he discovered what had apparently happened. This was one of the most traumatic events of Remus' life, especially since, within the next day, he would also be losing his other two best friends. Sirius was imprisoned in Azkaban for supposedly murdering Peter and twelve Muggles with one curse.

They were separated for twelve years during Sirius' imprisonment in Azkaban. In 1993, Remus discovered that Sirius was innocent when he spotted the supposedly-dead Peter Pettigrew on the Marauder's Map, and was reunited with his old friend. They both apologised for doubting each other, but had to separate again as Sirius went on the run from authorities. When Voldemort returned in human form, they both rejoined the newly reformed Order and fought against Death Eaters together, including at the Battle of the Department of Mysteries, during which Sirius is killed. Remus was extremely upset by Sirius' death. Nearly two years later Remus is killed in the Battle of Hogwarts, and Harry sees them both (along with his parents) when he uses the Resurrection Stone, implying that they are in the same place after death.

Books
""Professor Lupin?" [Harry] said. "If you knew my dad, you must’ve known Sirius Black as well." Lupin turned very quickly. "What gives you that idea?" he said sharply. "Nothing — I mean, I just knew they were friends at Hogwarts, too…" Lupin’s face relaxed. "Yes, I knew him," he said shortly. "Or I thought I did. You’d better get off, Harry, it’s getting late.""

- Harry Potter and the Prisoner of Azkaban

""Professor Lupin," Harry interrupted loudly, "what’s going — ?" But he never finished the question, because what he saw made his voice die in his throat. Lupin was lowering his wand. Next moment, he had walked to Black’s side, seized his hand, pulled him to his feet so that Crookshanks fell to the floor, and embraced Black like a brother."

- Harry Potter and the Prisoner of Azkaban

""Ready, Sirius?" said Lupin. Black had already retrieved Snape’s wand from the bed. He approached Lupin and the struggling rat, and his wet eyes suddenly seemed to be burning in his face. "Together?" he said quietly. "I think so," said Lupin"

- Harry Potter and the Prisoner of Azkaban

"Ron, Hermione, Fred and George’s heads swivelled from Sirius to Mrs Weasley as though they were following a tennis rally. Ginny was kneeling amid a pile of abandoned Butterbeer corks, watching the conversation with her mouth slightly open. Lupin’s eyes were fixed on Sirius. ... "Personally," said Lupin quietly, looking away from Sirius at last"

- Harry Potter and the Order of the Phoenix

""Yes," said Mrs Weasley, her lip curling, "the thing is, it’s been rather difficult for you to look after him while you’ve been locked up in Azkaban, hasn’t it?" Sirius started to rise from his chair. "Molly, you’re not the only person at this table who cares about Harry," said Lupin sharply. "Sirius, sit down." Mrs Weasley’s lower lip was trembling. Sirius sank slowly back into his chair, his face white."

- Harry Potter and the Order of the Phoenix

"Sometimes, however, the visitors stayed to help. Tonks joined them for a memorable afternoon in which they found a murderous old ghoul lurking in an upstairs toilet, and Lupin, who was staying in the house with Sirius but who left for long periods to do mysterious work for the Order, helped them repair a grandfather clock"

- Harry Potter and the Order of the Phoenix

"Sirius and Lupin had given Harry a set of excellent books entitled Practical Defensive Magic and its Use Against the Dark Arts, which had superb, moving colour illustrations of all the counter-jinxes and hexes it described."

- Harry Potter and the Order of the Phoenix

""Of course he was a bit of an idiot!" said Sirius bracingly, "we were all idiots! Well — not Moony so much," he said fairly, looking at Lupin. But Lupin shook his head. "Did I ever tell you to lay off Snape?" he said. "Did I ever have the guts to tell you I thought you were out of order?" "Yeah, well," said Sirius, "you made us feel ashamed of ourselves sometimes… that was something…""

- Harry Potter and the Order of the Phoenix

""He can’t come back, Harry," said Lupin, his voice breaking as he struggled to contain Harry."

- Harry Potter and the Order of the Phoenix

Fanon
One of the most popular slash pairings in the fandom, especially of the parent generation. The film portrayal of this relationship also helped a great deal to further the ship's popularity, with Snape saying they're "quarrelling like an old married couple". Before the release of Harry Potter and the Half-Blood Prince in 2005, many fans believed that Remus and Sirius were intentionally being written as queer, and were disappointed when the Remus/Tonks relationship appeared to erase the possibility. Since the release of JKR's statements on the transgender community that started in 2020, the Wolfstar fandom as a whole has shifted to a "death of the author" stance, and arguments that Rowling's authorial intentions are not pertinent when interpreting the books continue to rise.

On AO3, it is the most written ship for both characters and the second most written ship in the Harry Potter fandom.

Most of Wolfstar as a ship is headcanons/fannon, but there are still a lot of widely accepted headcanons about this ship that many Harry Potter "Marauders Era" fans know and agree on. The timeline below is canon-compliant, but uses popular headcanons to fill in the blanks of their school years.

Timeline
YEAR 1


 * Sirius Black and Remus Lupin meet on the Hogwarts Express on September 1, 1971, the first day of their first year at the school. They share a train compartment with James Potter and Peter Pettigrew.
 * The four boys are sorted into Gryffindor together and end up rooming together as well, in a dorm with 4 beds and a bathroom.
 * The group makes quick enemies with Severus Snape, as well as the other Slytherins in their year.
 * Remus is put into a shack build near Hogsmeade for his monthly transformations, and scratches himself up every moon because of how trapped the wolf is within the shack.
 * Remus, Sirius, James, and Peter earn the nickname 'The Marauders" (likely a self-given nickname, but we don't know for sure) for their aptitude at planning and executing pranks.
 * James and Sirius become especially close due to their similar, attention-seeking, outgoing personalities. They grow popular as well.
 * Remus excels in his classes, and ends up being the mastermind behind most of the group's pranks.
 * Remus and Sirius grow closer as friends (lots of people headcanon that they shared a love of Muggle music, especially David Bowie, and bonded over that).

YEAR 2


 * James, Peter, and Sirius begin to wonder why Remus is "sick" so often, and eventually guess the truth: that he's a Werewolf, and instead of shunning him for it, or telling people, they remain his friends and accept and love him for it. They even give him the nickname "Moony", in reference to the full moon.

YEAR 5


 * Some people headcanon that Remus discovered his sexuality around Year 5 (In a popular Fanfiction, All the Young Dudes on AO3, Remus realizes he's gay after a boy from the children's home he grew up in named Grant kisses him), and realizes he's crushing on Sirius.
 * Sirius, James, and Peter become animagi, meaning they can turn into animals at will. The process is very difficult and involves very high-level magic, but they all go through it so they can be with Remus when he transforms, since the wolf won't harm other animals. To match Moony, they all get nicknames that relate to their animagus form (James, a stag, is Prongs, Peter as a rat is Wormtail, and Sirius' dog form is Padfoot).
 * Sirius tells Snape to go down the tunnel to the Shrieking Shack during a full moon, in hopes that seeing Remus as a wolf would scare him. James, knowing this is a bad idea, saves Snape by dragging him back, but not before he'd seen Remus, thereby discovering his secret. Remus didn't forgive Sirius for putting both Snape and Remus himself in danger for a long time, but eventually did. This incident came to be known as "The Prank".

Year 6


 * Most people headcanon that the two got together around the end of 6th year, beginning of 7th year, or the summer between.

Year 7 and Beyond


 * Same as above.
 * The two gradate, and move into a flat together.
 * During the height of the First Wizarding War, Remus and Sirius begin to distrust each other, after Remus is sent on top-secret missions and Sirius's family's actions in the war. On October 31st, 1980, Lily and James Potter are killed after being given up to Voldemort by Peter, and Sirius is framed and sent to Azkaban Prison Remus spends 12 years alone in grief, with everyone he once loved dead or a traitor. In 1993, Sirius escapes from Azkaban, and the two eventually reunite with each other, and with Harry. We as readers see a lot of hinting between the characters in Prisoner of Azkaban, Order of the Phoenix, and Half-Blood Prince that seem to support their relationship, such as the way they looked at each other in a scene or other's comments about them.
 * Sirius dies in Half-Blood Prince after falling through the Veil during a fight with Deatheaters at the Ministry of Magic (Remus can be seen looking absolutly heartbroken in the movie).
 * Remus begins a relationship with Sirius's cousin, Andromeda's daughter, Nymphadora Tonks, and the two go on to get married and have a kid (Theodore Lupin) by Deathly Hallows.
 * Remus dies in 1998, at the hands of a Deatheater, during the Battle of Hogwarts. We see him reunited with the Marauders (other than Peter), when Harry uses the Resurrection Stone.

Fandom

 * FAN FICTION
 * Remus/Sirius tag on FanFiction.Net
 * The Shoebox Project
 * All the Young Dudes by MsKingBean89 on AO3
 * All the Young Dudes by MsKingBean89 on AO3


 * TUMBLR


 * WIKIS