With a flick of her whip, the mistress commands her bi-curious sub to don a pair of lacy panties. His face flushes as he steps into them, feeling the cool fabric against his skin. She guides him to the bed, his eyes locked on her commanding gaze. "You're my sissy now," she growls, pushing him down, his hard cock straining against the delicate fabric. She toys with him, making him pleasure himself through the panties, his moans filling the room. She leans in, her voice a low purr, "You like that, don't you, my sissy girl?"