CSGCMS stands for Catfight with School Girls in Checkered Mini-Skirts and it is one of the many variations of the female fighting fetish. Do not mistake that with CSGPMS (... in Plain Mini-Skirts) which is a completely separated stuff.
Japan fans love this sort of thing but all the clips here come from western producers: Lusa Entertainment (four of the best thighs in the business!), Catfight Haven and Foxy Combat.
Video removed by copyright owner request (Foxy Combat)