You're naked and tied to your bed; the very kind house cleaner you just hired tells you that she is your mistress from now on. You don't believe her, so she slaps you and runs her hands down your body. She knows your weakness is hands and fists, and she punches you in the balls. She jerks you off with a very tight grip and also jerks you with her fists. You are weak against her punches, and finally, cum as she is gripping your cock so hard it will explode.