(Please read chapters 1-3 before reading this installment)
Rain led Cassandra to another room behind the boutique, and opened the door.
"Here you go. Go ahead and shower, everything you need should be in there, and I will bring you some fresh clothes," said Rain as she showed Cass into the bathroom.
"Thank you Rain. Are you sure that Mr. Derrick won't mind?"
"Trust me, Cass. He will be OK."
Hesitating, "Rain, I really enjoyed making love with you. It was weird at first with your brother and dad, but it was OK. This is very new to me, being a slave and everything."
"Don't worry love. You will do fine."
Rain closed the door after Cassandra, and went to get her some new clothes. Cass, suddenly felt very alone in the bathroom. At first she did not really know what to do, so she looked in the mirror. Before her was a a girl she barely recognized. Was this Erin or Cass? She slowly took the ribbons out of her somewhat disheveled hair, pulled her cum stained top over her head, and wriggled out of the short skirt. Now in the mirror was young girl, naked but for a cum stained red ribbon around her neck and drying cum on her face.
She was pretty. She had great tits. The piercing was beginning to heal and looked good, though perhaps Mr. Derrick would choose to pierce the other nipple. She turned around and looked over her shoulder so she could see her ass, it was the first time she actually had looked at the new tattooing on her back; the words SLAVE and PET in cursive matching the style of her tramp stamp just below the new words. She smiled, and gave her hips a little wiggle. She turned around still smiling and removed the red ribbon.
Cass turned on the water to the glass enclosed shower. Giving the water time to warm up, she went back over to the sink and washed out the red ribbon. She then laid out the ribbon to dry a bit on the edge of the sink and climbed into the shower.
The hot water felt good on her satisfied but tired body. She stood under the direct assault of the massage head as it worked her shoulders. Cass was happy. She could not believe everything that was going on, but felt that she really had nothing to worry about. She was safe. She felt good about her owner. Her owner. Rain said she would be OK. Cass liked Rain. Would she ever see Rain again after today?
Rain returned to the bathroom and quietly opened the door when she heard the shower running. She laid the clothes on the toilet seat and quietly took the remainder of her clothes off when it was obvious that Cass had not heard her.
"Do you mind if I join you," asked Rain perkily as she slid open the shower the door.
"Ohhh....uh.....are there cameras in here too?' replied a surprised Cass.
"No silly, I just wanted to be with you again, before you leave and get shipped off."
"Shipped off?"
"You know to who ever Mr. Derrick got you for."
Cass turned to face Rain as she hopped into the shower. "Oh but I am not being shipped anywhere. There was a mix up and he is keeping me as his own slave."
"Uncle Derrick is keeping you? He has never had a slave of his own before. Wow, I can't believe it. Uncle Derrick has a pet," yelped Rain gleefully.
"Uncle? Uncle Derrick?" Now Cassandra was well and truly overwhelmed.
"He is my dad's brother."
"But Mr. Derrick is English and your dad is American?"
"My dad spent most of his life growing up here, but Uncle Derrick went back to England for a lot of his schooling and work. Their dad, my grand father, was English. But I can't believe that Uncle Derrick has his own slave."
"But.......oh god this is too much.....I have to get my head around all this......So do....have you slept with your uncle too....? Oh god, I can't believe I just asked you that, I'm sorry...."
"Don't worry....NO.....I haven't......I know he has probably had lots of women, but so far I have kept my incestuous nature to my immediate family.....but look you will get the whole story later. Let's get you cleaned up and presentable to my uncle."
For the next ten minutes or so, Rain lovingly washed the sexy teen. Making sure that Cassandra would be presentable to Derrick. She washed the girl's back and shoulders, making sure to stroke and caress every inch of Cass backside. She paid special attention with the soap on her ass, sliding her hand between her cheeks and slowly pushing her soap covered finger into Cass's tight hole.
"OH don't start that now, or I am likely to jump you and fuck you right here in the shower," chirped Cass.
"I was afraid you would say that," and Rain went back to cleansing her lover.
Rain turned Cass around and worked the soap over her tits, playfully tweaking and pulling at the girl's nipples, and then running the bar of soap between Cass's slightly parted legs and through her sex.
"I'm warning you, you sex craved minx. One more time, and I fuck you here and now, under this lovely hot water."
"No, you are right. I will stop teasing you, but you have such a lovely body, and I am just so happy that we WILL get to play again."
"What do you mean WILL? I am still his property, even though you are his niece. I really don't have a say on the matter."
"No, YOU don't but I do. I can't believe he did not tell us. Mum and dad are going to be so surprised, and I think happy, that he might be settling down a bit."
Rain then proceeded to was Cass's hair, and then handed the shampoo to Cass. "Now do me, but we better be quick. I don't think we should keep Uncle Derrick waiting too much."
So Cass washed and rinsed Rain's hair and then soaped her up, and in no time, both girls were clean, and showed no signs of their recent escapades. Both girls faced each other, and Cass leaned into kiss Rain.
"MMMM.....I was hoping you wanted to kiss me," Rain said, smiling.