Note to Reader: This is a sequel to "My Sister's 7 Days of Shame". While this story can stand alone, I strongly recommend reading this series in order.
Summary to this point: After an intense week of sexual humiliation while home alone, younger brother Jimmy (18) has successfully trained his sexy older sister Sofia (21) as his slave. Sofia commits to a life of sexual servitude with her brother Jimmy as her Master. The only thing standing in their way is the return of their parents.
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Chapter 1: New Beginnings
The traditional roles between a younger brother and an older sister are often unhealthy. As the oldest, my sister Sofia fostered a need for independence. Her useless younger brother could only delay that freedom. In turn, I never felt obligated to look out for her. She became another obnoxious voice of authority for me to seek revenge on.
The years spent under this spell twisted my mind. Fantasies of revenge consumed me. While many share my desires, somebody like me would rarely get the chance to experience them.
Sofia and I's sexual journey changed our dynamic for good. The barrage of degradation stripped her of her ego. Persevering her reputation no longer mattered to her. The freedom society had promised her through independence was instead granted through submission to her younger brother.
As for me, what I thought were simple desires for revenge unmasked themselves as a deep love for ownership. My short week of sexual pleasure evolved into much more than a few orgasms. I achieved something significantly more meaningful.
With great power came great responsibility. It became my duty to care for Sofia as my slave. Our relationship migrated from humiliation and punishment to pleasure and protection. We became a caring S&M couple.
The return of our parents created a need for discretion. While I missed the days of having free rein in the house, the added possibility of our parents catching Sofia did excite me.
Since Sofia had to be dressed outside of my room, I laid out skimpy outfits for her to wear each day. Small crop tops that pushed up her breasts, tiny skirts that hardly covered her, and chokers that signified her commitment to me.
It didn't take long for Sofia to take pride in dressing like a whore. She made the effort to create her own slutty uniforms. With my approval, she dressed to impress me.
During the day, we made use of vibrating plugs. Sofia did all of our chores while I played with the vibrator app on my phone. The excitement of random pleasure added joy to her undesirable duties.
I loved keeping her on edge all day with our parents walking around. Watching her struggle to suppress moans in her embarrassing outfits while washing dishes and cleaning toilets was incredibly arousing.
Once our parents headed to bed, we were free to do whatever we wanted. I taught Sofia to report to my room with a single text. I taught her a slave greeting each time she entered. After stripping off all clothing, she would prostrate and recite it.
"Hello, Master. It is an honor to be in your presence. Please use this body to your heart's content."
Whether I had her pleasure herself on the floor, dance for me like a stripper, or suck my dick, we would ultimately cap the night off with passionate sex. We made use of blindfolds, ropes, vibrators, and gags in the bedroom. My stamina had gotten to the point where I could make her climax twice before I did.
My arms became Sofia's safe place after her paralyzing orgasms. We shared kisses and hugs afterward in bed. I squeezed her tits and kissed her neck as we spooned.
I quickly fell in love with the small intimate moments. The feeling of my cock inside of her couldn't compare to her innocent little moans, the subtle flinching from my hands touching her sensitive points, or the feeling of her tits pressed against my chest. While we didn't want to separate, our parent's presence required us to sleep in our own beds.
Chapter 2: Parental Supervision
Our father never batted an eye to what was going on. He tended to ignore both of us as he was super busy with work all of the time. Our mother, on the other hand, took issue with Sofia's clothing.
My mother was a fiery individual at 40 years old. Outside of her delicate wiry frame, she shared the same height and hair as Sofia. Despite her age, my friends always joked about my mom being hot. While her boobs were on the smaller side, she had a cute face like Sofia.
Mother was the pretty girl of our town before Sofia came along. Since she gave birth at 19, she didn't get to be the pretty girl for long. Despite her glory days behind her, my mother remained obsessive about her looks. Her makeup, clothing, diet, and lifestyle were all dedicated to reclaiming her youth.
Not only was she living out Mother's dream, Sofia was the reason her dream was taken from her. Tension built between them as a result of my mother's insecurities. Sofia's new outfits became the straw that broke the camel's back.
Things came to a head once our father left town for work. Each summer he had to travel to New York for a week. Sofia and I were left alone with our mother for those 7 days.
Not even a day after he left, Sofia and my mother got into an argument. We were eating dinner when Mother challenged Sofia.
"Sofia, what did I tell you about these outfits? You're not in a porno. Put on some clothes for god's sake!"
Sofia crossed her arms with an accompanying frown.
"Why do you have to make an issue of everything? I'm not in high school anymore. You don't need to boss me around."
My mother put her utensils down.
"I don't care how old you are if you're in my house you will dress respectfully. Don't make me ground you. As long as you're under my roof you will follow my rules. Is that clear?"
Frustration showed on Sofia's face.
"Oh my god! You're so annoying! I'm an adult I can make my own decisions. Just drop it."
Mom chuckled.
"I don't think an adult would choose to wear that. Do you think people will respect you if your monstrous boobs are hanging out? No one wants to see those."
Sofia's face flushed with anger.
"You're so mean! I'm not bothering anyone! Stop taking your insecurities out on me! It's not my fault you're not pretty anymore!"
Mother gasped.
"That's it! You're grounded! No leaving the house until your father is home. Clear the table and head to bed. You need to think about what you just said."
Mother got up a bit frazzled and headed to her room. Sofia's words resonated with her. I sat silently while this all went down. It was not the time for me to intervene.
Sofia got up and cleared the table. She was exhausted from the yelling match. She didn't say a word until she cleared everything and headed to my room.
While lying in bed, she asked a difficult question.
"Jimmy, do you love me?"
Having cared for Sofia over the last few weeks, I loved her as my slave.
"I do."
She smiled and turned to face me.
"Do you promise to protect me as long as I'm your slave?"
This was the first time Sofia was vulnerable in this manner. I wasn't sure why her fight with Mother caused this.
"Of course. Why?"
Sofia looked into my eyes.
"Just making sure."
I let the conversation end there. I had a hard time falling asleep that night. I tossed and turned wondering what was running through her mind.
