His dick is tiny, we'll use his tongue

Sometimes, a man is at his best when he’s flat on his back, his small dick under a stiletto or a stockinged foot, his face under a woman’s ass. Mistress Jasmine and Mistress XI understand this all too well, as they realize their slave has limited potential and they must maximize his few talents. They face-crush him with a pillow, (the one his head was resting on!) just to make it extra hard on his breathing, and take turns sitting on his face. His inferiority does succeed in amusing them: They have many good laughs at his expense, while treating him like furniture or maybe garbage is a better choice of words.