Mistress Mercer takes control, duct-taping her sissy slut's mouth shut and forcing her hands behind her back. She teases the bound trans girl with a strap-on, pushing it against her eager asshole. The sissy moans through the gag as Mistress Mercer penetrates her, fucking her hard from behind. The dominatrix smirks, watching her submissive writhe in pleasure and humiliation.