My name is Hannah, and I have a twin sister.
We're very close. When we were growing up, we did everything together. As adults, we spent some time apart when she went off to college, but then she graduated, got a job with a large corporation, lost her job at that large corporation, and now we're living together again.
There's nothing at all unusual about all of that, but things got a little bit unconventional after she moved in with me.
You see, while Holly was away at college, I got into a BDSM relationship with a woman named Sylvie. Sylvie and I eventually broke up, but by that time, I had developed a taste for being bound, helpless and dominated. And when Holly moved in with me, I tried to see if she would be willing to treat me like I was her sex slave.
I love Holly and trust her very much. And she's extremely beautiful. In many ways, she was the perfect choice.
I know, some people will say that sex with your sister is incest, and incest is forbidden, but Holly and I never cared about labels like that. Also, the main complaint about incest has always been that children born of incest quite often have birth defects. Holly and I are both lesbians. No matter how much pussy we eat or tribbing we do, neither one of us is going to get pregnant.
Spanking, bondage, and lesbian incest would be kinky enough for most people, but Holly and I pushed the envelope and went even kinkier. You see, I'm into something called CFNF. That stands for clothed female, nude female. And that's all about me being the only one naked while clothed women openly stare at my boobs, my pubic lips, my buttocks and my hard nipples like I was a naked slave on the auction block and they're trying to decide how much they're willing to spend on me.
It gives me a dark, delicious thrill for respectably clothed women to ogle my naked body, so Holly keeps recruiting people to join in our sex games and treat me like a naked sex slave.
And so it was that one sunny Spring morning, Holly had me kneeling at her feet so she could buckle a slave collar around my neck. Of course, I was naked while Holly wore her designer jeans, V-neck shirt and running shoes. We had friends coming over and we wanted me to look the part of Holly's slave before they arrived.
"You look noticeably submissive all naked and with the slave collar buckled around your throat," my sister observed. "But a true slave would have handprints all over her beautiful bottom. Get over my lap and I'll take care of that for you."
I made a sound in my throat, somehow halfway between a moan and a whine and I replied, "I've done everything you've asked of me. Why do I need to be spanked?"
Before she replied verbally, my sister reached down between my legs and slipped a finger into my wet pussy, I let out a gasp that ever so slightly had a moan mixed in with it.
"I'm pretty sure you enjoy these spankings," my sister replied. "I mean, you're soaking wet. Of course, if you feel I'm being too harsh, I could always just stop being your mistress. You could stop being my slave and we could go back to just being sisters that never do anything sexual or kinky with each other."
Holly knew that I wouldn't be willing to do that. Being her naked, objectified, punished slave filled me with a potent, magical sort of excitement, unlike anything else I had ever experienced. I wasn't going to give it up. I might moan or complain about the way I was treated, but I didn't want it to stop.
I crawled across my sister's lap, placed my palms flat on the floor and raised my bare buttocks high, making them an easy and inviting target. I was struck by how vulnerable I'd made myself and a wave of palpable arousal swept over me.
Holly rested one hand on my left butt cheek and said, "You have a very cute bottom. It'll look even cuter after we add some color to it. And it's expected that sex slaves always bear the signs of a stinging spanking on their buttocks."
I was looking for the appropriate response to her words when her hand came down on my unprotected rear.
"Ow!"
"Keep your back arched," my sister admonished me. "Keep your head down and your buttocks up. I expect you to follow proper etiquette for spankings."
There was an unmistakable tone of authority in her voice. My submissive instincts responded to that tone, and I did my utmost to keep my back arched and my butt raised, even though my self-preservation instincts were insisting that I should be defending myself.
I gasped and cried out in pain as my sister turned my ass into an agonizing pulse of heat. And yet the way I squirmed across her lap wasn't just because of the pain she was inflicting. It was also because of the pulsing fire in my loins. You see, something about submitting to brutal, humiliating punishments is a huge trigger for my libido. The more severely my sister abused me, the more intensely my pussy throbbed.
Her strong right hand came down on my vulnerable backside repeatedly. I bounced across her lap and cried out repeatedly in girlish pain until the spanking was over.
"Ow! Ow! Ow! Ow! Ow! Ow! AHH!!"
In the end, my perfectly shaped buttock and the backs of my thighs were seething in red hot, pulsing pain. Hannah assured me that she only gave me thirty-six swats, but it felt like more. My sister told me to get up off her lap and once I was standing, I rubbed my poor, stinging, throbbing bottom.
"I never said you could touch yourself," my sister admonished me. "Hands at your sides."
Obediently, I took my hands away from my punished bottom. It still hurt, but my sister had a stern, commanding tone of voice and my submissive instincts kicked in and I felt compelled to obey.
"Slaves shouldn't ever touch themselves without permission," Holly continued. "It's a violation of slave etiquette. You need to show self-control and just absorb the pain when your mistress punishes you."
"Ooooh,"
I groaned, but I didn't complain. Holly was being cruel, but it's hardly unexpected. We had carefully negotiated the terms of our new slave/mistress relationship and I had specifically agreed to strict rules, harsh corporal punishments, forced nudity and sexual objectification.
"When our friends arrive, your cute ass is going to be whipped with a leather strap. How will you handle that if you can't handle a simple hand spanking?"
"I can handle more. I can do better," I promised.
"Good girl."
Then she took a few steps towards me and reached for me. She told me to place my hands behind my back and cross my wrists. Then she kissed me passionately on the lips before grabbing one of my nipples and rolling it between her fingers. She didn't stop until I was good and aroused.
"Ohhhhhh."