So here's chapter 4 and thanks for the support this far - ratings and comments are appreciated. And I can now tell you that I expect this series to be 7, maybe 8 chapters long.
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It was Wednesday morning, three days after I'd given my little sister the keys to my cage and four days since my last orgasm. Cynthia hadn't ignored me since our parents got home, but she was playing it cool around our parents. We were being more civil to each other but there was nothing to suggest I'd spent a large portion of their weekend on my knees or that I was wearing a chastity cage. Our mother didn't work Mondays, so we hadn't a chance at any privacy once Cynthia came back from university. Tuesday was her late start so I'd had a chance to eat her out again after our parents left for work and I was able to worship her feet whilst she ate breakfast.
Now it was Wednesday, Cynthia had left for university before our parents had left for work, but Cynthia would get home a little after one and we'd have four or five hours home alone. At the very least I expected her to use me, but I was really hoping she would let me out of the cage. I don't remember the last time I'd been five days without jerking off and that had been because I was busy and trying to keep myself locked up. I had never been this aroused before and I had spent most of the past three days straining against the cage.
I made sure to take care of all of my responsibilities around the house and with work and just as I'd finished I got a message from Cynthia.
-I'll be home in twenty minutes. Be a good slave and have a sandwich and a glass of orange juice on the coffee table and meet me at the door naked and kneeling.-
She had just made digital evidence of our relationship and that was surprising, but I was happy about it. I was going to get to serve her and before she even got home. Before I went to make the sandwich, I thought about how to reply and I decided that I wasn't quite as willing to acknowledge our relationship by message. Our relationship being exposed would be far worse for me than Cynthia. Still, I acknowledged that I was obeying with an "as you wish." Which would be easier to play off like I'd lost a bet, something that would be difficult to do if I replied, "yes mistress."
I got the sandwich made up and stripped down to just the chastity cage and then a couple of minutes before I expected her home I poured the orange juice out. And then I went to the front door and waited for my little sister to come home wearing nothing but my chastity cage. I wasn't worried about being seen when Cynthia opened the door as our house was tucked into the side and nobody ever had a reason to walk past it.
The door handle was pulled down. She was here. The door opened and my little sister walked in. She was wearing tight black jeans, chunky black ankle boots that added three to her short height with a simple white top and a black that leather jacket that stopped well short of her waist. The monochrome did a lot to highlight the red acrylic nails and lipstick she was wearing. She closed the door behind her and laughed.
"You actually did it."
I looked at her confused. "Of course..."
"The sandwich too?"
"Yes mistress."
"I spent the last twenty minutes thinking how I would punish you for failing to take your clothes off."
"Cynthia. Mistress. I want to serve you. I was happy that you ordered me to do something like make you a sandwich."
"My pathetic slave," she looked down at me, "put your head on the ground."
"Yes mistress." I said and leaned forward and my head on the ground like I was some priest before a god.
I felt her boot on the back of my head and I gasped. It didn't hurt; she was being gentle. It just felt so right, so good to actually be under her boot.
"This is where you belong isn't it? Under your little sister's boot."
"Yes mistress."
"Now, whenever I come home and we can be alone, this is how I want to find you."
"As you wish mistress." I said into the floor.
"And then once we're like this, ask me how day was."