Author's Note: This is a four part series that I intend to release pretty quickly one after the other. If the title didn't give it away, there will be both BDSM and sibling incest involved, separately or together as the case may be. If either of those things really aren't your jam, probably turn back now.
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Chapter One
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I saw the glint in Kendra's eye well before she acted. It was to a point I could nearly always tell when she had her naughty intentions, without her having to say anything at all.
Regardless, I pretended to be oblivious and carried on until she made a move.
When it came, it was pretty unsubtle. Kendra walked up to me while I was folding and putting away laundry in our room. She patiently undressed me while still mostly staying out of my way. It took a while, but she was in no hurry.
Kendra caressed me with her perfect, delicate touch as she stripped me. Her hands lingered on my shoulders and neck, my breasts, my exposed tummy, and then circling around my pussy. She didn't touch me there yet. Just a tease. A hint of things yet to some.
Only after I was naked did she pull out my collar and carefully affix it around my neck. I'd known where this was going, having seen it in her eyes, but it still thrilled me every time. Partly because of how easily it turned out I'd let her do stuff like this, and partly because of the implicit promise that things were about to be very, very enjoyable.
More recently, there was the added risky thrill of being caught at one of Kendra's little games. Dak, my younger brother, had moved in with us. He was fresh out of university and needed somewhere to stay. I loved having him around again, and Kendra had no problems with it. We had plenty of space.
What I hadn't counted on was Kendra using Dak's presence to fuel our little escapades. Even now, relatively safe in our room, my eyes flicked toward the open door, my pulse racing that much quicker than if we'd still been living alone.
"He's not home," Kendra said in that soft but commanding voice that she brought out just for me.
I nodded. "I know. Just... we have to be careful."
Kendra smiled in her special, mildly evil way. "Don't you trust me?"
My legs went weak just at the melded promise and threat in her few carefully chosen words.
"Completely," I said, absolutely meaning it.
"Good girl."
Kendra clipped a leash to my collar and led me out of the room. I followed a few steps behind her, close enough that my leash never tugged. Paradoxically, when I was feeling particularly subby, I sometimes didn't follow right away specifically so she'd have to pull a little and give me that special look that told me I oughtn't to misbehave Or Else.
Kendra led me to the kitchen. Not unusual. She knew how to make every single room in the house fun, if she wanted. Though fun could mean very different things depending on her mood, and to a lesser extent mine.
"I noticed there were some dishes to do," Kendra said lightly, unclipping the leash after only a very short walk.
"I still had laundry to finish," I said. "You didn't seem to mind making me leave that."
Kendra's hand cracked sharply on my butt just as I finished speaking. I yelped and danced away slightly from her, though I'd known it was coming. I'd been asking for it, really. I knew exactly what to say to get myself spanked.
"Dishes, little one," Kendra said mildly.
I nodded, pouting just enough to make her smile before I turned to the sink.
Little one. Kendra was barely a year older than me, and basically the same height. She shouldn't have been able to get away with calling me that, and yet I found that I liked it more and more every time she said it. It made me feel small, but in an oddly safe and loved kind of way. A way that gave me warm little tingles when she said it just right.
One of my butt cheeks still stung as I ran water in the sink. It warmed appreciably compared to its unblemished twin. The aftermath of that single slap all I could focus on at first. Spanking being another thing Kendra had mastered when it came to me.
The things she could do to me without hardly doing anything at all...
"You know what I've noticed?" Kendra asked in a lazily pitched voice.
I risked a glance back at her. As expected, she was sprawled comfortably in a chair at the dining table, with her feet up on a second chair. Just lounging and watching me. Staring at my naked, horny self, probably admiring my butt and the one pink hand print she'd bequeathed me.
"I don't know," I said honestly. I was quite certain it wasn't something I'd guess off-hand.
"Since Dak has been living with us, it's been trickier to find good play time," Kendra said.
I squirmed being reminded of my brother. We had plenty of time yet to ourselves before he got home. I knew that. Yet knowing that he could potentially walk in at any time and catch me in my current state was worrisome.
And yet, it made me nervous in that delightfully thrilling kind of way. It was actually dangerous sometimes how risky thoughts made my tummy flutter and my pussy flood.
"We've managed somehow," I said, carefully setting a glass bowl in the drying rack with a trembling hand.
"Mmm. That's the other thing I've noticed," Kendra drawled, her tone tinged with victory, as though I'd verbally trapped myself somehow. "It seems to me sometimes as though it's actually easier to turn you on when you think Dak might find us out."
I shook my head quickly. Too quickly. "I don't think that's true."
"I do. You think I can't see you shaking from here? You think I don't notice how wet your thighs are getting? Just from naked dish washing. Not hardly anything at all."
"You're watching me," I said demurely. "And you're planning things."
"I'm always planning, my darling. But I almost needn't bother. I could tie you to this table right now and let you wait for Dak to get home, and it would have more effect than all the nefarious plotting in the world."
I nearly dropped the next glass on its way to the drying rack. My mouth was suddenly dry. My knees threatening to buckle.
"That's my brother you're talking about," I said, an obvious tremor in my voice.
"Yes. I know."
"You can't... he's not a part of... it's not..."
"Well obviously I wouldn't actually let him find you like that," Kendra said lightly. "We wouldn't want him seeing his big sis all naked and collared and waiting like a subby little thing to be found by him. That just simply wouldn't be appropriate."
"No," I squeaked. "It wouldn't."
I waited, eyes closed, hands mechanically washing the same plate over and over. I knew what was coming. I didn't believe it, but I knew it.
Kendra was in no hurry, but she eventually said it.
"Molly, come over here please."
My heart pounded. I dried off my hands that were shakier than ever. Pulsing with excess adrenaline.
The worst part was how right Kendra was. She could make me tremble when she wanted. Make me shake like a leaf in all the best of ways. But this was almost too easy. The threat of Dak seeing me, seeing what Kendra could do to me, revved me up easier than much of anything else. And she knew. She'd caught on.
It made sense though, I hoped. Kendra and me and our little games, they weren't something I shared with anyone else. It wasn't like my nerves regarding being caught were anything unusual. I would have been nervous and excited if anyone at all had been around to catch us. It was the possible embarrassment that did it to me. And yeah, maybe the stakes were a little higher when being humiliated in front of my brother was a possibility.
"Across the table, please," Kendra said.
