In a dimly lit dungeon, a bound submissive awaits their Mistress, Leatherjunkie, who enters clad in form-fitting leather attire. She teases the sub with a gloved hand, slapping their cheeks before presenting her strapon, the leather harness glistening with lube. The sub's eyes widen as the Mistress presses the thick, veined strap-on against their ass, pushing in inch by inch, filling them completely. She fucks them hard, relishing their moans of pleasure and pain, humiliation etched on their face.