Kathy submits to you

As you lay on top of Julie, your cock still embedded deeply inside her, Kathy comes over and kneels at the side of the bed. Her head is downcast, and her hands rest in her lap. "What would you have of me, Master?"

That pricks your ears up. "Master?"

"Yes, Master. You topped Mistress, therefore you are my Master."

You look down at Julie, still panting hard from her exertion. "Is this true?"

She opens her eyes, saying, "Yes, Master. For tonight, you have two little slaves to please you. When you leave, we will revert to our previous arrangement." She gazes at you with lust. When you look into her eyes for confirmation of what she says, she lowers them demurely.