Salad Fingers's Pinkie Finger

(Y/n) is a (y/a)-year-old girl with a birth defect; her pinkie fingers are freakishly long and oddly jointed. She can move it backward, forwards, and lay the whole thing flat against her palm or the back of her hand. It's the size of two of her thumbs stacked on top of each other, but it's only her pinkies. She gets made fun of for it. But what happens when she gets transported to a world with a man who is even weirder than her?