Sadistic FemDom Mistress Mercer fucks sissy sex slave Erica's mouth and throat, making her gag and drool all over herself, as her eyes roll back in her head and her mascara and makeup run down her face. She grabs her hair, holds her arms, and shoves her head down on her cock. Mercer is wearing a leather harness, strap-on, and thigh high stockings, Erica is in a slutty crop top and school girl skirt.