We all thought Mistress Isa Me

We all thought Mistress Isa Mendez let her sex slave Nikki Bell go after their last rope bondage training session. Nope! Isa kept Nikki tied sitting on the sybian fucking machine with a big ball gag muffing her mouth. Isa starts the session off with the sybian. Nikki cant move so she will endure every bit of vibration Isa gives her, teasing her with the control panel. Nikki begs to orgasms over and over, soaking the vibration pad. It makes Isa jealous. So she straps on her favorite dildo.