Please read the previous chapters if you want more background.
Thank you to s0rethr0at for editing this chapter.
Disclaimer: This story is fiction. Any resemblance to real people or places is coincidental. All characters are 18 years of age or older. Do NOT read if you don't like themes such as femdom, lesbian, voyeur, anal, strap-on, humiliation, chastity cage, chastity belt, piercing, water sports, caning, incest, domination, submission, or masturbation. Really, you don't like masturbation? What are you doing here? You may also come across various other elements of BDSM. Some or all of these elements may appear in different chapters.
***
Lucy -- the daughter and university student, got a summer job with her crush the Professor.
Sarah -- Lucy's dad's Mistress.
The Professor -- Professor Lauren Brown.
Monica -- Lucy's friend, a part-time librarian, and a fellow university student.
***
Chapter 4
Lucy had just seen her dad's Mistress, Sarah, toss Lauren, her professor, the keys to the chastity belt she had been locked in. As Lauren left, Lucy hoped that Sarah had a spare third key, otherwise, she would have to go see Lauren get the butt plug and rubber cock out -- eventually. Sarah left shortly after Lauren did and left Lucy to clean up -- naked but for the belt. Lucy hoped her dad would not make an appearance any time soon at home.
After cleaning up Lucy tried to masturbate but she just got frustrated as she just got hornier and hornier and her ass was really sore after the well-deserved punishment she'd been given. Her sore ass made her even hornier, not to mention thinking about how it got sore.
***
Lucy was in charge of dinner, and she decided to focus on dinner. It would not make itself with her lying in bed being sexually frustrated. She got up and put on pink undies that did very little to hide the chastity belt. Lucy took them off again and snapped some selfies of herself back and front. Then she put the undies back on and took more selfies. Then she covered up with a white and red summer dress and yet again back and front selfies to complete the set. Maybe she should send them to Monica. Monica? Why did she think of Monica when it was Lauren that should really be receiving them, or what? What if she 'accidentally' sent them to Monica? What would Monica think? Wow, she really needed to go down to the kitchen and focus on dinner.
She could hear her dad come home, and she went to greet him. She wondered what he would say if he knew that she was in a chastity belt. Hugh and a kiss on the cheek. Well, she knew about his chastity cage, so why should he not know about her belt? She could feel her face turn red just thinking about it.
"Sarah, home?" Her dad asked.
"No, but she was here earlier, and I got a job with Professor Lauren!" Lucy's smile took over her whole face, and her eyes reflected pure joy and happiness.
"Fantastic, well done my gorgeous girl."
"Thank you, dad, but I have to run and look after dinner. Sarah sent me a text earlier, and she should be here soon for dinner."
Lucy sorted things out in the kitchen, and then she heard Sarah come home. She ran to greet her, but her dad beat her to it. It was wonderful to see them so happy, so happy to see each other. Her dad had his hands on the small of Sarah's back. She had one hand on her dad's ass and the other -- well, it was hard to see, but it looked like Sarah might be grabbing the cage her dad was wearing.
Lucy gave them some privacy, backing back into the kitchen. She could hear her dad going back to his office and Sarah coming into the kitchen.
"And how are we doing?"
Lucy could feel Sarah starting to lift her dress.
"Oh, nice. Did your dad notice? You know that this dress is rather see-through?" Said Sarah before Lucy could answer her question.
"What? Is it? No."
"Yes, in the right light it is, but don't worry, you cannot see the belt."
"You made me worried."
"At least not very well."
"No, really? What?"
"No, don't worry, all good. Anyway, your dad will have to find out sooner or later."
Lucy felt her mouth go dry and her pussy go wet.
"Dinner ready?"
"Yes, I will serve up here at the kitchen table."
"Sounds good. Just give me 5 minutes to freshen up."
"Sure, Mist... Sarah."
Sarah smiled, like a father like a daughter.
Dinner went without incident though Lucy did wonder if her dad noticed that she put her ass down rather gingerly and maybe there was a little sound suggesting padlock to metal action from her belt.
Her dad started to clean the table as he was on dishes.
"Take your clothes off," Sarah's voice was firm and clearly directed at Lucy's father.
He turned around with dishes in his hands, looking from Sarah to Lucy and back again.
"Not a word, just do as you are told. And Lucy knows about the spice, or should I say the glue in our relationships."
Lucy sat stiffly in her chair.
Her dad looked down.
"You can obviously leave now Lucy if you want," Sarah said, "but I suspect that you might like to stay."
Lucy's throat went very dry. She would get to see her dad's cage up close.
Her dad put the plates down and took off his clothes. Keeping his eyes down. His cock was pressing hard against the cage.
"Your dad gets off on the humiliation, as you can tell. Now go help with the dishes."
Her dad took the dishes again and turned round to the sink. The stripes on his ass were nothing less than beautiful to Lucy.
"Now it is your turn," Sarah was looking at Lucy.
Lucy stood up and took her dress off and the undies. Even though she had the chastity belt on she had never felt so naked.
"You can turn around and look at your daughter."
Her dad looked at her. "Turn round and show him your stripes, Lucy. Only fair. You have seen his stripes now he can see yours."