Rubi was hungry during the session, so she decided to have a snack while sited on her slave. She tied Nina up so that her hands wouldn't be a distraction as she sits and eats. Nina being the stubborn sub she is, kept interrupting her mistress and Rubi squashed her so hard mixing it up with some butt slams just to get her to shut up and stay still as she waits for her mistress to finish eating. Nina never imagined it would be this difficult but she had no choice because she couldn't go anywhere given her position.