Serena has been known to have a bratty streak in the past. She is super hot and maybe that has given her a reason to have such an attitude. It is not my job to figure this out, but rather control this attitude with torment and suffering. She is restrained with multiple devices that all keep her vulnerable and helpless. Each position is designed to give full access to the part of her body to be brutalized. Every position ensures her suffering, screams, agony, and pleasure.