Cheerleader to Sock Sniffer (Patreon)

Based off this short story by EyeBeast https://www.deviantart.com/eyebeast/art/Writing-Prompt-Exercise-214-823487527

A cheerleader finds a crusty sock in the locker room. She gives it a whiff and finds herself unable to resist pleasuring herself. She is so immersed she doesn't notice the transformation taking place.