Leafcil

 is the femslash ship between Leafy and Pencil from the Battle for Dream Island fandom.

Canon
These two didn't have to many interactions, with most being in Season 1, and them not interacting until the later half of the season.

Bowling, Now With Explosions!
In the puppets section, Leafy walks up to Pencil and asks how it's going, and Pencil says she's just looking at clouds. Leafy says that she seems bored and they should do something fun like jumping off a cliff.

Pencil is about to jump, but Leafy says she didn't mean it literally. Pencil jumps and asks "Oh so you didn't mean it literally?", showing that she thought Leafy HAD meant it literally. Leafy said she hadn't. Pencil said "So we're not cliff jumping", and Leafy said no. Pencil suggests they watch clouds with Pen. Leafy agrees.

Leafy saw Pen and Pencil with real-life versions of themselves, and said she wanted one too.

The Reveal
Pencil thinks that Leafy's gift for Bubble was a trap. When she was proven wrong, Pencil was mad that Leafy had gotten a gift for Bubble but not her. Leafy felt bad and took the shoes she gave to Bubble and gave them to Pencil instead. This made Pencil happy.

Pencil said that they shouldn't commemorate Blocky's elimination. Leafy agrees with her.