Tiffany is the submissive of Michael, she and Vianna are better described as "Michaels subs" while Julie is "the slave" because Michael treats the two girls like his prized possessions and Julie just cleans and cooks and does regular service. She even sometimes serves the girls! She is similar to Cinderella at times. Tiffany would be the evil step sister. She treats Julie like her slave and believes she is wayy higher than Julie on the "submissive hierarchy" she's bratty and mean.