The submissive, their tight, greedy boipussy aching for penetration, is guided to their knees by their dominant mistress. The mistress, in command, secures a thick, black strap-on dildo around her waist, the head glistening with lube. She presses the tip against the sub's eager hole, pushing in slowly, allowing them to feel every inch as it stretches their greedy little pussy. The sub moans, their body trembling with pleasure and anticipation as the mistress begins to thrust, filling them completely.