The primary difference between Fleshlight Girls sleeves and regular Fleshlight sleeves is the design and appearance. Fleshlight Girls are modeled after popular adult film stars and have unique textures and features that are specific to each star. Regular Fleshlight sleeves may not be based on adult film stars and might have more generic designs. Both types of sleeves offer pleasurable experiences, but the Fleshlight Girls provide a more personalized and realistic experience for fans of the adult stars.