The boy's eyes widen as he sees the size of the strapon. His Mistress smirks, "You can take it, boy. You'll take every inch." She positions herself behind him, guiding her toy to his tight entrance. He gasps as she pushes in, inch by inch, stretching him. She pauses, letting him adjust, then begins to fuck him, her hips slapping against his ass, her grunts mingling with his moans.