Mia Kay, the dominant force in this sibling duo, seizes the opportunity to assert her power over Alex. She commands him to undress, her eyes gleaming with lust as she takes in his naked form. "You're pathetic," she sneers, "But I'll make you feel like a man." She strips off her own clothes, her tits heaving with anticipation. Mia grabs Alex's cock, her grip tight as she begins to pump him. She leans in, her breath hot on his ear, "You're going to cum for me, like the good little slut you are." She maintains her firm grasp, her pace relentless as she brings him closer and closer to release. Just as he's about to explode, she stops, a cruel smile playing on her lips. "Not yet," she whispers, "We're just getting started."