She needs to prepare her assets first

As Ellie’s pussy throbbed, yearning for the chance to cum, Marie went back to the table and her assortment of toys. It was there that she picked up a pear sized butt plug and generously started to lather it in lube, careful to make sure that The young submissive before her couldn’t see what was going on. “Tell me ****, have you ever been fucked in the ass before?”

“N-no Mistress”, the young blonde stuttered nervously as the sudden intrusive question caught her off guard and brought her back to reality.

“Too bad for you then”, Marie said mockingly. “Master loves a long hard ass fuck. And with an ass like yours, I imagine there’ll hardly be a moment when he doesn’t choose it over your sorry little cunt. Lucky for you I’m gonna help you train that naughty little hole of yours.”

As she staid that, Marie waltzed back over to Ellie and shoved the plug up her ass. Ellie was so taken aback that she couldn’t help but let out a howl as she felt her sphincter expand and contract around the cold metal plug. With out thinking, she reached back as if to remove it, but Marie quickly swatted hat hands away. “Don’t even think about it ****. Only Master and I are allowed to remove that plug. If I catch word of you taking it out for even a moment I’ll find you a new plug so big it’ll create a bulge near your tits and then I’ll seal it with cement.”

“Yes Mistress”, was all that poor broken Ellie could reply.

For her own part, Marie knew that she couldn’t actually get away with making good on her threat. Master never allowed them to own dildos or plugs larger than his cock. And the island had stopped importing cement products sense the government deemed it a poor society’s construction preference and switched to either cobblestone or glass. It watching little Ellie’s lower lip tremble with fear at the thought of her punishment was almost as much fun to the rising sadist as spanking the young blonde’s ass red.

With the plug properly inserted, Marie had one last surprise in store. She pressed a button on her remote and the plug inside Ellie began to vibrate at just the right frequency so that she wouldn’t be able to forget about it but she’d still be able to focus on her new duties. Ellie let out an audible moan as the plug stimulated her ass. Marie started to giggle as she watched her new sub’s reaction. “Looks like you’re a natural butt slut.”, Marie said mockingly. “In fact I think that’s going to be your name now till further notice: Butt Slut.”

Marie then quickly grabbed her by the collar and pulled her up till she was looking right in her eyes and slapped the young blonde across the face. “Tell me your name slut!”

“B-butt slut, Mistress”, Ellie said timidly.

“Louder!” Marie barked as she used her free hand to twist Ellie’s nipple. “Say it like you’re proud that Master has a use for your pathetic body and hasn’t reduced you to furniture!”

Ellie cried out as her nipple was twisted sadistically. But thanks to that damned plug in her ass, it sounded much more like she was moaning in pleasure than crying out in pain. She realized that to the average onlooker, she’d appear to be nothing more than a common whore getting off on the ****. Summoning what reserves of strength she had left, she took a deep breath and then loudly proclaimed, “My name is Butt Slut, Mistress.”

“That’s a good ****”, here Mistress replied with sadistic glee as she playfully slapped the blonde’s face a few more times. “Now you’ve spilt some of Master’s cum on the floor. Lick it up but don’t swallow it.”

“Yes Mistress.”Ellie said before licking up the cum from the ground and keeping it in her mouth.

Again that salty tang returned to her mouth and Ellie’s mind instantly went back to imagining the size of her master’s cock and how it seemed to fill her mouth so nicely. She was so preoccupied that she didn’t even notice Marie go back to her table to grab the next tool of her humiliation.