It was finally spring break. I was relaxing on my bed at 11:00 AM, my step-sister was visiting home from college, life was good. I, Jamie, was in my senior year of high school. Home stretch. My sister Samantha was in her sophomore year of college. My parents walked into my bedroom. I looked up from my phone.
"We're leaving for our cruise for the week," said my dad. "Be good, and give your sister some distance. There's lots of food in the fridge and just call us if you need anything."
I nodded in agreement. They left and I heard the car leave the driveway. I opened my closet excitedly. Waiting for me was a humongous amount of handcuffs, gags, and other such things. I often practiced self bondage, and since my parents would be gone for 5 whole days, I was free. The only thing that worried me was my step-sister, but I thought she wouldn't be much of a problem. If only I'd realized how mistaken I was.
I grabbed a handful of rope and a gag. I climbed onto my bed and stripped down to my bra and panties. I started off with a simple spread-eagled tie. Just as I fastened my last knot, Sam walked in.
"Hey Jamie, what do you want for-" she looked up and saw me bound and gagged on my bed. "Well, I guess I finally caught you doing this."
I was horrified. She knew?
It was as if she read my mind. "Oh yeah I knew, I found all that shit in your closet ages ago. I've been waiting for this opportunity for a while." She untied me but left the gag in.
"Wmmmph armmmmph ymmmph dmmphng?" I asked through my gag.
"What am I doing? Well you're going to be my slave for the week." I was shocked. She wanted me to be her slave?
"You will do my chores, and other tasks I give you, as well as pleasure me if I so wish. But first, a few ground rules. Violation of any of these will cause you to be punished. Harshly. First off, take off that underwear. You'll be totally naked unless told otherwise."
I removed my bra but left my panties on.
"Your panties too, sis." I shook my head. "What did I say about disobeying me?"
Sam walked over to my closet and dug out a whip. She pushed me over to the bed and forced me to bend over. I was whipped ten times. Each one I screamed into my gag. By the time she was done, I was whimpering.
"That's a warning. Now do as I say!" I took off my panties.
"Good slave. Next, you will always refer to me as mistress." She went again to the closet and brought out handcuffs and shackles. My hands were bound behind my back and my legs were cuffed.
"You will be restrained at all times, though not always in the same way." I struggled. "Now follow me."
Sam led me downstairs to our unfinished basement, into the guest bedroom. It was barren, only a bed, a clock, and a messed up door that locked from the outside. "This is your cell. You will stay here unless I have a task for you. Those are all my rules. Do you understand?" Sam removed my gag.
"Yes, Sam."
"What did you call me?"
"Yes, mistress. I will obey."
"Good. Now rest up. Your slavery starts tomorrow. As for now, to will be restrained in here for the rest of the day."
She brought in a bucket. "Pee in here. I'll feed you dinner at 6:00. Lights out at 10:00. Understood?"
"Yes mistress."
"Good. Now let's quiet you up." I was put in a cleave gag and left. I heard the door lock. This was going to be a long week.