Katrin's muscle-riding and facesitting punishment

Description: Katrin enters the scene, steps on her slave's hands and arms. Standing fullweight on his upper arms, yes it hurts alot, she complains about his not cleaning the house and so on.... she begins to enjoy to have a  helpless slave under her for punishments. She decends her knees on his arms, still doing hard fullweeight muscle-massage. Now she has him in a school-girl-pin, he has no chance to throw her off, she's to strong and heavy for his weakness, he can only receive, what she serves. Many long breathless moments under her ass are following, she changes several time the position... for her comfort?... or better for his discomfort!