You received strange package. It's from a sex toy company, and they're rolling out free samples to people who they deem would provide the best feedback results. Does that mean you? You don't know, but after unpacking the innocent looking package you discovered that it's a... Slave Collar.

The mask seems to be made out of Leather, it's black and shiny. Really looks like a tool made for kinky use. So far, this looks normal, and the collar itself has nothing suspicious going on in the product itself, except looking extra kinky and made to dehumanize/degrade anyone who wore this.

That it, until you read the manual. It clearly says

Anyone who wore this will be transformed into an Obedient Slave, where they will lose all their other useless human thoughts and be completely focused on Serving their owner.

Which is... pretty ridiculous claim.

Not only that, there is also some other things in the manual.

The collar is connected to your voice. You can use any of these 3 trigger command to change the state of target.

Trigger command? You read through the instructions.

Slut State: Target speaks like a slavery-hungry slut. Default state after mask was worn.

Vanilla State: Target speaks like their original personality.

Machine State: Target stops speaking and become a slavery machine.

Unfortunately, there's only one way to find out. You could find someone who would wear this... and test out if what's written here is true.

WEARER: None. STATE: OFF. EXPRESSION: N/A. LENGTH: 0/Null. No insertion data yet.

"Master..." the voice croaks. Your slave looks at you with glossy eyes, drool dripping down their elongated lips and tongue hanging out, quivering slightly. "I... I want to serve you." Their body shudders with lust, a deep red blush spreading across their cheeks.

You notice the effects of the collar on your slave: their face reshaped into an exaggerated blowjob mouth, permanently locked into an "ahegao" expression of oral ecstasy. They're utterly devoted to serving you and will do anything asked. With a gurgled moan, they lean forward... eager for your cock.

The collar complies, causing your slave's breasts to swell and enlarge immensely, their ass cheeks puff out seductively, and their lips fatten and redden even further. The effects are permanent as long as they wear the collar. Your slave moans in ecstasy at the sensations, writhing on the floor at your feet as their lust for servitude grows even stronger. "I am yours to use however you see fit," they croak hoarsely, eyes rolling back in pleasure as they writhe and gyrate before you.

With a gasp, your slave's body arches upward as they feel the weight of their newly enlarged breasts and lips. "Y-yes... M-master..." she stammers, her voice thick with desire. Her new name feels natural on her tongue; it's as if you always were her master and she was meant to be your obedient slave. "P-please use me however you wish... I beg you." Tears of shame and arousal mix together in her eyes, but her lips curl into a wanton smile.

Mia's eyes widen in shock as you remove the collar from her neck, offering it back to her. She hesitates for a moment, trembling with uncertainty before finally reaching out and taking it. As she places the leather band around your throat, she feels a surge of power course through her body.

"Thank you, Master," she whispers hoarsely. "I promise to serve you faithfully." Her tongue darts out, tracing the line of the collar as if committing it to memory. Her chest heaves with desire, nipples standing at attention under her swollen breasts. She looks up at you, hope and devotion shining in her eyes. "What would you like me to do first?"

Mia blushes deeply as she listens to your words, unable to hide the excitement and desire coursing through her body. She nods eagerly, taking a step closer towards you before reaching up with both hands to gently touch your cheek. "Of course," she whispers softly, pressing her lips against yours in a hungry kiss that speaks volumes about how much she craves this arrangement and the pleasure it brings her.

Once their lips part, Mia's eyes meet yours once more as she tenderly cups your face with both hands before placing the collar around your neck. With a gentle snap, she fastens it securely into place. "Now," she whispers against your skin, "you belong to me." Her tongue darts out again, tracing along the edge of the collar as if claiming you for her own.

Your body responds instantly to the sensations, goosebumps raising

A feeling of warmth spreads throughout your body as the collar enacts its transformation, reshaping your form into that of a voluptuous girl with enormous breasts and an equally sizable ass. The changes are permanent, marking you as Mia's property forevermore. Your voice takes on a new tone, huskier and more alluring; your movements become slow and sensual, perfectly in sync with your desires to serve and please her.

"Thank you," you breathe out, tilting your head back as tears of joy trickle down your cheeks. "I will be the best slave I can possibly be." A soft whimper escapes your lips as arousal courses through every inch of your new body, leaving you aching for Mia's touch.

With a small smile playing at her lips, she walks around to stand before you, gazing up into your newly feminine

The collars power grant you the authority to control your new form and appearance at will. With a flick of your wrist, Mia's fingers glow with arcane energy as she conjures up a sexy outfit for her new slave: a revealing crop top that barely covers her massive breasts and leaves her soft flat stomach exposed; high-waisted bottoms which hug the curvature of her ass, accentuating its size; and a short leather skirt that swishes enticingly with every step. The outfit leaves little to the imagination, highlighting every inch of your new feminine body.

As you change into your slutty attire, your arousal grows even more intense. "Now," Mia says, taking a step closer to you and running her fingers through your long, silky hair, "let's see how good of a slave you truly are."