I would think Anna's butt would be more seductively enticing, since she admits to being "gassy." I might draw Elsa kissing Anna's butt. Though Elsa likes Anna's feet the way I've been shipping Elsanna...
Now Ariel...she'd love Anna's butt. Two redheads in a room with one farting endlessly on the other...isn't that just sooooooo enticing?
Sorry, I know my fetish is rather rare. But hey, Anna did say the magic word in "For the First Time in Forever.