Marianne offers Mackenzie a deal

Mackenzie took a couple of moments to regain her breath and followed. Marianne lived in a one bedroom apartment in one of the new high-rises that had been built in the former town center, after the suburbs expanded. It wasn't a big place, but it was well-lit and airy. Marianne liked to decorate with bright colors, and that added to the openness of the place. "So, Bill's not home?" Mackenzie tried to change the subject for a moment.

"No, he's out. Sit." Marianne pointed to a red chair, opposite an identically colored sofa that she sat on. Apparently, they were part of a set. Mackenzie sat down carefully. The constant brushing of the belt's inner lining ceased after she stopped walking, but, if she didn't pay attention, the front plate of the belt could press against her pussy, sending her again into overdrive. "OK, show me." An icy feeling came over Mackenzie as she heard Marianne speaking. "What?" "You heard me, show me the belt." Marianne's voice was shaking a little, but managed to keep an authoritative tone.

With trembling fingers, Mackenzie lifted the skirt and spread her thighs, the polished metal shining between her legs and hugging her hips. "Looks tight. And you say it's keeping you ... horny?" Mackenzie turned beet red, as if the whole blood she had rushed to her cheeks. "Yeah ... Mari. Please let me out of this fucking thing! I'll go crazy in a week." Marianne bit her lip, and a sensation of envy washed over her. Suddenly all the fantasies she had came back to mind. For a moment, she considered unlocking Mackenzie's belt and putting it on herself. But even as she toyed with that idea, it became clearer that she would enjoy just as much inflicting her fantasies on Mackenzie.

"We didn't say we were letting you go in a week." Marianne revealed a wry smile, trying to contain the arousal in her voice. "What?" "You didn't pay attention. Rachel said we were going to keep you locked at least a week." "What do you mean? You're crazy!" Mackenzie's flustered cheeks turned pale as if by magic. "Crazy or not, I have the key." Marianne reverted to her petulant tone. "Unless you want to try your luck with Rachel. Which, let me tell you... won't go that easy." Mackenzie was utterly shocked. "What the fuck are you talking about? Give me the fucking key or I'll find a locksmith ... or just have it cut off." Marianne's grin was not promising any good. "Good luck with that. The lock is special, so if something goes wrong, you'll end up locked forever. As for cutting it off ... are you sure you want any sharp tools ... there?" Mackenzie rested silent and dumbfounded. "So, yeah. Go and do it. Let me know how that goes."

"Mari, please. Don't do this to me." Mackenzie was pleading again, which just strengthened Marianne's resolution. "Kenz, I didn't say I won't let you out. You told me you would do anything if I did, yes?" Mackenzie nodded, scared of where this was going. "I'll cut you a deal. Bill is traveling for work this week. I could use you around the house until he comes back." Mackenzie's heart sank. "What for?" Marianne smiled. "Experimentation. You're quite needy now, I want to see how needy you become." She continued, in a lower voice. "How far would you go to get that key from me." Mackenzie looked, silent, her heart beating rapidly.

Marianne stood up and put her hand on Mackenzie's leg. "Kenz, don't be afraid. This will be fun. And I promise that, if you do what I say, I will let you out next Sunday. What do you say?"