It was late at night and the front door to the sex shop had been locked, so Monica, Robin, Anja and my sister could do whatever they wanted to me without having to worry about what other people would say. We had the entire shop to ourselves and all the time in the world.
And hundreds of sex toys.
"Since she's a slave, I think Hannah should be bound," one of the women said. "Perhaps a slave collar and some wrist restraints."
"And a leash," my sister added. "Once she's been collared, it only makes sense to add a leash."
They were quite efficient in the way they did it. Leather restraints were buckled around my wrists, a leather slave collar was buckled around my throat and then a short chain was used to connect the wrist restraints to the back of my slave collar, thus ensuring that I couldn't use my hands to protect my naked buttocks.
Then a leash was clipped to my collar and my sister used the leash to control me.
"This way," Holly said as she tugged insistently on my leash and dragged me towards the back of the store.
I was forced to walk past the dressing rooms and towards the BDSM part of the store, where they sold things like cages, whipping frames and one bar prisons. And while surrounded by all these bondage devices, Holly maintained her hold on my leash and invited Robin to come play with my breasts.
"She can't stop you," my sister explained. "Playing with her body and touching her all over will be more fun if she's helpless."
My sister was right. Robin reached for me, and my eyes glazed over as she played with my naked body. She played with my nipples, rolling them between her thumbs and index fingers. I was unable to suppress a moan as my nipples became achingly hard and conspicuously erect.
My legs felt wobbly, and I squirmed in my bondage, straining against the chain and the leather restraints forcing my wrists up high behind my back. I moaned and panted shamelessly as agonizing waves of desire surged through my body.
"The sounds you're making right now are so sexy," Anja informed me. "Keep making those."
My breasts heaved as I gasped once again. Robin's fingers were doing amazing things to my nipples and another wave of libidinous desire passed through me. I felt a soft, wet pulse in my sex.
She stopped playing with my nipples and cupped my breasts, lifting them up, pressing them together. I was enjoying the experience of having Robin's hands all over my body, when Holly spoke up and interrupted the experience of Robin expertly groping me.
"Think now, Robin, what is it you really want to do with her? Do you want to feel her up some more or is there something else you'd prefer?"
"This may make me sound like a bitch, but I'd like to see Hannah on her knees," Robin admitted.
Holly pointed to the floor near my feet and said, "On your knees, slave girl, now!"
I sank down to my knees and Holly told me to spread my legs far apart and make sure my pussy was pornographically on display. I felt like a shameless slut, but I did exactly as she told me to do. Robin looked down at me with rapt interest as I knelt at her feet, and I felt delirious with heat and embarrassment.
Robin was wearing a sleeveless black skater dress with a hem that came down to mid-thigh. She lifted the hem of her dress, revealing a cute pair of thong panties, the same color as her dress.
"Pull down my panties and lick me," Robin said, her voice suddenly thick and sultry.
"But my hands are bound behind my back," I replied. "How am I supposed to pull down your panties without hands?"
"Use your teeth," my sister replied. "And be quick about it, or else you'll be punished."
A frisson of sexual excitement ran through me, and I shuddered. I was naked, bound, on a leash and surrounded by clothed women who had authority over me. My ass was already sore, and if I failed to pull down Robin's panties with my teeth it was going to become even more red and tender.
My breath came in short, frantic bursts as I awkwardly leaned forward and worked my mouth around the waistband of Robin's panties. I bit into the fabric of her tight-fitting garment and pulled it down as hard as I could.
I spread my knees wider to improve my balance. It put my pussy more on view and left me feeling more exposed and vulnerable, but it didn't help me nearly enough when it came to removing Robin's panties with my teeth.
Despite all my valiant struggles, I wasn't able to move her panties down more than an inch or so. Panting and exhausted, I admitted defeat and my sister announced that I'd have to be punished for failing.
Robin ended up taking her panties off herself. Then she held her skirt up and thrust her pelvis in my direction. With her pussy exposed, Robin's plump, swollen pubic lips were staring me in the face. A small amount of moisture had already leaked out from between them, and I stared at the folds of her pussy as they glistened under the store's fluorescent lighting.
"Well?" Robin demanded.
Apparently, I had spent too much time staring at her pink slit and Robin got impatient waiting for me to get started. I took the hint and licked at the smooth flesh of her vulva. She tasted sort of like red meat. I liked the taste.
I heard a deep, shuddering sigh up above me and I almost didn't recognize Robin's voice when she said, "Skip the foreplay. Just dive right in!"
I nodded my head and put much more vigor and enthusiasm into what I was doing. A lot of women prefer slow, methodical, smooth licks to their pussy. Robin wanted me to be aggressive, almost brutal in the way I treated the folds of her labia and her clitoris.
It was difficult to angle my head and get in there properly with my wrists bound behind my back, but I did my best, stretching my neck and pushing my face in there as I licked vigorously at her pink slit. I took her pubic lips into my mouth and energetically sucked on them. At her urging I even nibbled on them.