When we got home, Holly ordered me into the bedroom and told me to take my clothes off. Our visit to Eva's home had gotten us both worked up and we both needed sexual release. She felt we should forego being coy or flirtatious and just get down to being naked and in bed.
Once I was fully naked, my sister eyed me up and down, openly admiring my breasts and exposed pubes. The way she looked at me made me feel even more naked than naked, especially as she was fully and decently clothed.
"Lie down on the bed," she ordered. "Face up, arms and legs spread."
"Yes, Mistress," I replied weakly. My voice was so soft and tremulous, I'm not even sure if she heard me, but I lay on the bed and I spread my body wide open, leaving myself vulnerable for whatever my sister had planned.
Then Holly placed leather restraints around my wrists. I moaned as my sister attached my wrist restraints to chains and then buckled restraints on my ankles as well. Within moments I was bound spread-eagle to my sister's bed. Then, she shoved a pillow underneath my ass, forcing my hips and pelvis to be raised higher and forcing my pussy to be even more indecently on display.
"Ooh, you've got me helpless and at your mercy," I moaned. "What are you going to do to me now?"
I reveled in my feelings of helplessness and vulnerability. My breasts and pubic lips were fully on display. Holly could whip them, like Mistress Lockley whipped Beauty in that Ann Rice book. An agonizing wave of desire passed through me as I envisioned what it would be like for Holly to whip me like that, but she had other ideas.
She crawled on to the bed and knelt between my widespread thighs. Then her tongue went to work on my pussy.
"O-oh,"
I moaned.
I gasped and whimpered. My sister mouthed my pussy, sucking, licking, nibbling, tasting me. I felt one spasm after another ripple through my body, and arched and twisted and rolled my hips in shameless, wanton pleasure.
I was right on the edge, when Holly got up from the bed and proceeded to strip naked. My sister was an intoxicatingly beautiful woman, and my first instinct was to reach out and take her into my arms, but of course I couldn't. It was a tease. One of the most beautiful women in the world was naked right in front of me and I couldn't touch her because I was chained down. I knew I couldn't get free, but I struggled against my restraints anyway.
The more I struggled, the more my feelings of helplessness increased. And my extraordinary feelings of helplessness fueled my feelings of sexual arousal. And just when the pulsing fire in my loins seemed to reach fever pitch, Holly laid her naked body on top of mine.
She pressed the front of her naked body into mine and then rubbed her body up and down, brushing her breasts across mine, getting my nipples even harder and more excited with the erotic friction she was creating. Being bound and helpless, it felt almost like rape or being sacrificed to some sort of pagan goddess. I moaned as tingly sensations spread all up and down and my body was suffused with sexual heat.
"Yes, you're my helpless, naked prisoner," Holly whispered seductively. "And I can do anything I want with you."
An inarticulate moaning sound escaped my lips and then Hannah covered my mouth with hers. She kissed me for a long, long time, her tongue probing, caressing, massaging my own tongue and transporting me into some sort of sex slave fantasy where the slave is raped by her mistress.
I felt like one of those big-bosomed damsels in the old black and white vampire movies. Instead of wearing a corset and a low-cut European peasant blouse, I was stark naked. And instead of a vampire sinking his fangs into my jugular vein, a domineering lesbian was leaving a series of love bites up and down my neck as I shuddered, moaned and gasped. My head reeled and I savored my role as the naked helpless victim.
After covering my neck with love bites, Holly explored my naked body with her hands and her mouth. She kneaded my breasts, before gently biting my nipples and then sucking on them. She took my breasts into her hands once again and brushed her thumbs up and down across my excited nipples, getting them so hard that they ached.
Then, she slid down my naked body and once again her face was in between my legs. I whimpered and strained against my restraints as I felt her mouth once more on my pubic lips.
"Ohhhhhh!"
Holly placed her hands on my hips and energetically licked my clit. My body was already thrumming with sexual electricity and my sister's tongue drove me to erotic heights I can't even describe with words.
Her tongue was working on my hard, swollen clit, and I gasped and screamed as I became overstimulated. My body wiggled and shook as my sister pried my pubic lips apart and sank her tongue deep into my pussy.
"Oh! Ohhhhhh! Aaahhh! Aaaaaahhhhhh!"
She placed her hands underneath my butt, cupped my buttocks and plunged her tongue even deeper into my pussy. I squealed as her tongue probed my moist interior. I strained against the restraints as her tongue skillfully wiggled inside me. I tried to thrust up to get even more of that enthusiastic tongue inside me, but the way Holly had chained me to the bed I could barely move. Even my most frantic struggles resulted in barely more than a writhing shudder of my hips.
I screamed and gasped and panted and then Holly sucked my hard sensitive clit into her mouth. I came against her face in a series of powerful spasms as I climaxed again and again and again.
When it was over, I savored the blissful afterglow of the powerful orgasmic release. Then Holly climbed up my body and straddled my head.
"Lick," Holly demanded. "And do it well. Slaves who fail to make their mistresses happy, get punished."
Talk of punishments worked to rouse my libido again, especially while I was bound wide open and helpless. I moaned, stuck out my tongue and my sister ground her pussy against my face.
I thrust my tongue up against Holly's pink slit, driving it between her pubic lips and working it into the mouth of her sex. I licked it upwards and located the hard, rounded swell of her clit with my tongue.
I began to lick Holly's clit as she rode my face and I got swept up in the fantasy and immersed myself in the idea that not only could Holly punish me if I did an unsatisfactory job at licking her pussy, but that she should punish me if I did an unsatisfactory job. After all, isn't that the primary reason for owning a slave? Slaves are supposed to keep their owners satisfied. I thought of that and put even more effort into driving my sister into orgasm.
My sister shuddered, gasped and panted as she rode my face to ecstasy. She would occasionally tweak one of my nipples as she bounced and jerked up and down. I adored the way that I was helpless to stop her. She could touch me all over, grope me, pinch me, massage me, finger me, and I had no choice but to allow it. I was helplessly bound and could do nothing to stop her.
"Oh, God! That was amazing!" Holly exclaimed as she made her way off my face. She lay back on the bed, partially draping her body across my own.
Eventually her breathing became less labored. She reached lazily between my widespread legs, stroked her fingertips up and down my inner thigh and said, "We're not done yet, slave girl. What do you think about that?"
"Does it matter what I think, Mistress?" I asked. "It's not like I can get up and walk away."
"No, you can't," she replied, wicked mischief in her voice.
She crawled off the bed. With me bound, my arms and legs splayed wide open, I couldn't get a good look at what Holly was doing or where she was going, but when she came back, she was holding a flesh-colored dildo. It was intimidatingly thick and suddenly my pussy felt more exposed and vulnerable than before.
It was made of silicone, I think. It had a rounded head; the shaft narrowed slightly near the head, but then grew thicker further down.
"Since you're a slave, I think you should be able to take more than a woman's tongue inside of you," my sister explained. "And the way you're bound, I don't think there's anything you can do to stop me from putting this inside of you."
My breathing quickened, and my heart sped up as my sister fit the head of the fake cock against my wet pussy. I squirmed and shuddered as I felt the fat head of the dildo forcing my pubic lips apart. I was already soaking wet, but Holly had coated the imposing phallic beast with copious amounts of lube. I felt scared, and considered using my safe word, but somehow the idea of being forced to accept that monstrous thing inside of me was thrilling. It would make me feel even more slave-like and submissive to be forcibly penetrated.
"Ohhhhhh! Ohhhhhh!"
I strained against my restraints futilely as the girth of that fake cock opened me wide. I groaned as Holly pushed deep and impaled me on her cock. I felt more and more like I was really and truly Holly's property. This thing deep inside of me created a link between us. It had a psychological effect on me and made me feel more owned than ever.
Holly thrust the lubricated cock into me, fast and hard, then slow and deep, changing speeds as she worked it in and out of me. I shuddered in delicious fear and dark delight as my twin sister fucked me.
I broke out into a sweat, panted and gasped. I tried to struggle against the restraints that forced my ankles so far apart, but the more I tried, the more exhausted I became. I had been used and abused and objectified and was beginning to feel emotionally and physically drained as my pussy was deeply and forcibly raped. And the more the strength drained out of me, the more I got swept away on feelings of dark desire and frantic arousal. The orgasm inside of me built with more and more strength as the muscles in my arms and legs became weaker and weaker.
As I got closer and closer to climax, my sister rammed the dildo into my pussy with a force that was almost painful. I lay there helpless as a glow of delicious, masochistic pleasure spread through me and I moaned and grunted.
I came with a series of inarticulate screams and helpless, shuddering convulsions. I spasmed, jerked and made gurgling, gasping sounds. Holly continued to thrust her massive weapon inside of me until I finally went limp, my jaw went slack, and my eyes became unable to focus.