Hitachis can blow a lot of girls' minds, but if you really want to demonstrate how little the power a submissive has over when she cums, the best tool for the job is a Sybian. Serena Blair is the one in charge of the buttons that control the power and intensity of the Sybian that Roxanne Rae is sitting on: she seems to enjoy her role as the person that gets to decide when – and how – her obedient submissive will be cumming. It's going to be tough going for this slave to enjoy herself here without losing her mind in the process.
