Home safely, finally.

Heather talks the whole drive to your place. Without any of her own orgasms, she seems to have no end of sexual energy but you are very tired. You hum affirmatively and nod your head as you doze lazily in her passenger seat. Her car is nice; cozy.

"Hey, we're here. Aww. Look at you, tuckered out. Poor thing." Heather's fingers gently prod your ribs, tickling you awake.

"Ah! I'm awake!" you laugh, squirming away from her touch. You look out the window to confirm that she did, in fact, deliver you home. You realize you'd have been very easy to kidnap in your state, but considering she had to literally untie you just to get you into the car, you figure there was little chance she was going to kidnap you. She already had you safely in her clutches. "Thank you, Heather," you reach for her face and touch her cheek, admiring her pretty features. "You're really cool. And so beautiful."

Heather smiles. "Hey. You don't have to say yes, but would you want to do this again some time? Maybe when Mark's the one in chastity and I can take full advantage of my pretty little Slut."

Warmth floods you at the idea. "Mmm. Count me in. You know where I live so just, like, come by some time and bring your toys."

Heather catches your face gently as you turn to leave and draws you in for a sweet kiss. Her eyes hold yours and you know she's being very serious. "If we're going to make a thing out of this random encounter, I want you to get used to calling me Mistress. Let me hear you say it now."

The words send a thrill down through your stomach to your loins. The idea of referring to anyone in such a submissive tone would have sent you into a huff just a day ago, but now... "Of course, Mistress."

Heather's face brightens into a pleased smile. "Good girl."

You scrunch your face, thinking hard. "But if Mark is wearing the belt when you visit, then wouldn't he be in charge?"

Heather laughs. "Honey, even when Mark is calling the shots and both of us are at his mercy, you are going to call me Mistress. I already love the way it sounds. And if you forget, well, I'll just have to remind you which of is is Mistress and which of us is Slut."

Your pussy clenches in anticipation. "I might like that... Mistress."

Heather nods in approval. "Oh, before you vanish as mysteriously as you appeared... what is your name? If you want to keep this anonymous that's cool; you don't have to tell me and you'll just be Slut to us forever. But I am curious."