The pet's mask comes off, revealing a face contorted with lust and humiliation as she's made to service her Mistress's lover. Her mouth is filled with throbbing cock, her lips stretched wide, as she's used roughly. Spit and pre-cum drip down her chin, her breath coming in ragged gasps around the invading flesh. The pet's body trembles with each brutal thrust, her eyes locked onto her Mistress's stern gaze, eager to please and take every inch.