Shy and reserved Sugar Elf (Pie Elf to be precise). very elegant.

Her twin sister Fluer gets in her nerves, and she farts when she's nervous.

Fluer provokes Pepilla’s gassiness with her actions. Fluer pokes fun at Peppulla being like this and Pepa hits her right back.

(Peppilla belongs to ThePervySage7, made with permission).