Rosemary

Rosemary is the femslash ship between Rose Lalonde and Kanaya Maryam from the Homestuck fandom.

Canon
Kanaya originally learned about Rose when she read her walkthrough of Sburb, leading her to idolize Rose, with the implication of Kanaya developing a crush on her. However, Kanaya's first conversation with Rose was actually with John (who was at Rose's computer and was impersonating her), thus leading Kanaya to have misconceptions about her, believing her to be snooty and underwhelming.

Despite this, Kanaya becomes attached to Rose, and learns to emulate her sarcastic behavior. The two began to share a strong friendship thanks to their extensive communication and playful conversations, although this caused Kanaya to worry about Rose and attempt to discourage her risky plans at every opportunity she can get. At one point, Rose displayed gratitude for this, leading Kanaya to say that she did not want to "Get Stuck In That Kind Of Pattern Again", implying that she did not want to act as a moirail to Rose the same way she did with Vriska.

During the three-year meteor journey, she and Rose start a romantic relationship. When pressed about it by Meenah, Kanaya simply laughed and responded with a "Maybe". Supporting that, Rose asked Kanaya if she is "doing anything later". Rose would also not let Dave join in on these plans, possibly wanting to be alone with Kanaya.

After drinking some strong liquor, Rose went on a date with Kanaya, walking through the hallways of the meteor, and during it, they shared a kiss, which was then proceeded by Rose falling down the stairs, ruining the moment. During the final moments of the three-year journey, while Rose was drunk and organizing cans for the Mayor, Kanaya became angry with her, leading Rose to ask Kanaya if she was going to break up with her. This is then followed by a mad "no" from Kanaya.

During the events of Act 6 Act 6 Intermission 1, when Rose and Terezi find themselves sitting on LOLAR recovering from their respective hangovers, Rose expresses regret over the way she had been treating Kanaya throughout her period of drunkenness, and calls Kanaya her girlfriend for the first time in the comic. Later, after the Condesce kills Kanaya as Rose watches, Rose goes after the Condesce wanting revenge, although she fails and is quickly stabbed. During her dying moments, Rose says to Roxy and John that she loved her.

In the retconned timeline, they end up starting a romantic relationship similarly to the old timeline. The two are shown reading a book about quadrants together, with Rose shown blushing, before Vriska joins in, annoying the both of them. Kanaya also mentioned that Vriska seemingly likes to spy on them at times, mostly during the times when Vriska saw Rose "making no discerni8le effort whatsoever to disguise the fact that she's happy", implying that Rose is happier in general when she's around Kanaya. They are also shown going on a date similar to the one they had in the old timeline.

After the kids and surviving trolls end up entering Earth C, after time travelling 5000 years in the future, Rose and Kanaya end up ruling the Carapace Kingdom together alongside Roxy and Calliope. About a year later, they are shown getting married, and they both begin working on overseeing the future propagation of the Troll race, helping each other raise the future generations of trolls on the planet.

Fanon
Rosemary is one of the most popular ships in the Homestuck fandom. On AO3, Rosemary is the most-written ship for both Rose and Kanaya. It's also the 3rd most-written ship in the Homestuck tag, beneath Johndave. The ship primarily raised in popularity during Act 5, where the two were shown to have a great friendship and Kanaya was shown to be idolizing her, but it truly sailed during the three-year meteor journey in Act 6, where the ship was teased many times, until it was eventually confirmed when the two of them kissed.

Some fanfictions of the two may involve the Humanstuck AU, an alternate universe where the Trolls are human, perhaps in a modern setting or something else entirely.

Fandom
FAN FICTION

Rose/Kanaya on FanFiction.Net

Rose Lalonde/Kanaya Maryam tag on AO3

TUMBLR

Rosemary posts on Tumblr

Trivia

 * Rose was wounded in the same area as Kanaya.
 * Rose and Kanaya have both been confirmed to be lesbians.
 * Kanaya is generally associated with moths. She is also attracted to Rose, a Light player, "like a moth to a flame".