Sayosuki

Sayosuki is the femslash ship between Sayori and Natsuki from the Doki Doki Literature Club! fandom.

Canon
In game, Sayori is much more affectionate with Natsuki than she is with Yuri, Monika, or the player. There is an instance where she wraps her arms around Natsuki’s shoulders, excitedly exclaiming that everything that Natsuki does is just as cute as Natsuki herself in a cheery tone. Natsuki gets flustered by this, blushes, and says that she’s not cute, shortly before the player changes the subject.

Sayori also does this another time, when Natsuki has a cookie in her hand. Even though Sayori already had a cookie, Sayori sneaks up behind Natsuki and takes a bite of the cookie. Natsuki gets flustered here as well, and proceeds to lightly scold her about it while Sayori gets embarrassed and apologizes

They also have color schemes that compliment each other nicely, Sayori has mainly salmon in her palette and Natsuki has mainly pink. Both girls are also considered the more cutesy ones of the club while Monika and Yuri are the more beautiful brooding ones, so they’re similar in that sense as well.

Fanon
This ship sailed mainly because of Sayori’s affectionate moments with Natsuki in game, and some of the dialogue they share. It also fits the popular ship trope of the bubbly extrovert and the moody introvert, which also makes it very well liked.

It’s rivaled to ships like Sayonika and Natsuri, but it’s popular in it’s own way as well.