Adorable sisters Dakota Charms and Gemi Blossom have always liked to compete against each other in whatever they do and today, big step-sister Dakota comes up with a fun, daring, and stinky gag endurance challenge for her and her little step-sister to do. Dakota doesn't think Gemi will be able to handle to have a stinky worn pair of her big step-sister's dirty socks stuffed and kept in her mouth but little step-sister Gemi is so gonna try and prove her self-sure big step-sister wrong and accepts the challenge right away. Not only do these competitive sisters find out who's gonna be able to keep one another's worn socks in their mouths the longest, they also find out who can stand and endure the taste of each other's dirty pussy panties.