Make sure it's harder for Mackenzie to escape again

The leader re-emerged from the shed carrying a backpack and rejoined Mackenzie at the center of the group.

"It looks like our base security is not up to standard" said the leader, glowering at the Greens who had been left behind to defend.

"With that in mind, I think it's about time we invested in a guard dog"

Mackenzie didn't like the sound of this one bit.

The leader turned to her; she braced, anticipating another cruel remark or slap on the rear. What happened next was wholly unexpected but no less mortifying.

She felt the girl's hands reach out and caress her breasts, rolling and pulling at each of her nipples, teasing them out into two stiff points. Then, she pinched them both hard enough to cause Mackenzie's body to jerk in response.

She squealed with embarrassment. Her nipples stuck out obscenely, drawing the eye of everyone present.

Next, the Green leader reaches into her bag and triumphant pulled out a strange pair of objects.

It was a pair of clothespins, made of wood with a rough grainy texture to them. Attached to each of the pins was a short length of string that ended in a pair of small silver bells; they looked like the kind you'd see on a cat's collar.

Mackenzie felt a flash of irritation upon seeing the bells. Clearly, the girl was still fixated on treating her like a pet. No doubt she was about to attach them to the collar still locked around her neck and subject her to more teasing and name calling.

She sighed, it was yet another indignity on top of everything else she'd suffered that day. However, a part of her felt somewhat relieved. This was the girl who had put a leash on her and encouraged her gang to smack Mackenzie's ass until it burned red. She clearly delighted in humbling and embarrassing her nude captive with creative punishments. Comparatively, this felt like a very lenient punishment.

It wasn't.

Call it naivety, call it optimism, but the long-suffering redhead had failed to pick up on several crucial details that might have clued her in about what was about to transpire.

The green leader moved forward, a malevolently glint cleat in her eyes.

Too late, Mackenzie realized what she'd previously overlooked.

If the girl wanted to tie a bell onto the collar, why were there two sets? Come to think of it, why were they both attached to clothespins?

Moments later, she found out.

Grinning sadistically, the girl lunged forward and clamped the clothespins onto Mackenzie's hard nipples. The hapless redhead cried out in surprise and anguish as the makeshift clamps bit into her tender flesh and a tight pinching pain erupted across her chest.

"Aaahh!"

The girl stepped backwards to admire her handy work, releasing her grip on the clothespins and attached bells. The bells bounced several times on their strings, tugging at the naked woman's nipples as they did so.

"Ouch! That hurts!"

Considering their size, the bells were surprisingly heavy; they dangled just below Mackenzie's bare breasts, their weight magnified the already considerable stress on her nipples and made the clothespins pinch tighter.

Mackenzie squealed as her body stiffened in a rictus of pain. Her fists clenched and her back arched involuntarily as her wrists pulled uselessly at the chain of the cuffs. She was **** to break free and tear the clothespins from her body but the cuffs refused to yield.

"That's better, now we'll be able to hear if you try and run off again dog" smiled the green leader.

"I don't know if it makes sense to say she's a dog, not now that she's got those cat whiskers drawn on her." commented one of the other teens, his eyes never straying from Mackenzie's bare chest.

The green leader glared at him and retorted "Whatever. She's still a bitch that needs to be punished."

Mackenzie's breath came in short gasps. It was difficult to take in anything going on around her, the agonizing grip of the clothespins was impossible to ignore, but she still had enough clarity of thought to feel dread at the girl's words.

Needs to be punished? Wasn't this already the punishment? Did that mean there was more to come?!

As the initial shock faded, the pain began to subside slightly, changing from an intense sharp pinching sensation to a dull ache. Heat radiated outwards from her nipples as they throbbed in time with her heartbeat. It was as if an electrical current was pulsing through her tits.

Mackenzie began to breath more normally and tried desperately to ignore her aching chest and stand as still as possible; even small movements made the bells sway and bounce, pulling on the clothespins and intensifying the pinching on her tormented nipples.

“Man,” said one of the boys, “those have gotta be the best tits I've ever seen.”

"That's because they're the only tits you've ever seen" quipped another.

All of the Greens who had been stood behind Mackenzie had filled around to get a better look at punishment being administered to her perky tits. They now formed a semi circle in front of her.

A potent surge of deep humiliation spread throughout Mackenzie's body. She'd been so distracted by clothespins she'd completely forgotten about the audience of teenagers gawping at her. It was bad enough that these teens were seeing her most intimate areas, now they were judging them too.

The Green leader stepped forward again and flicked both of the bells, sending them bouncing again and tugging at the unfortunate redhead's ample assets.

"Ouch! Stop it! That pinches!"

Another flick. Another cascade of pinching pain.

"You don't tell us what to do. We tell you what to do. Is that clear?"

Mackenzie nodded abascently, **** to avoid another flick.

“Good. Now, lean forward and shake those bells.”

Mackenzie's mouth dropped open. She couldn't believe what she was hearing.

"You want me to do what?!"

"Shake the bells. I need to make sure they're loud enough to hear if you try to escape again."

The naked redhead froze in place. This was too much to bare. She knew exactly what 'shaking the bells' would involve, the girl couldn't seriously expect her to jiggle her bare tits at the group of boys could she?! Mackenzie had suffered through so much humiliation already that day, she'd almost become numb to the embarrassment but this was too much.

She could see them all staring at her with excited expectant looks on their faces.

The green leader rummaged in her bag again. "If you aren't going to do as you're told I'm going to have to assume those ones are too quiet and swap them out for these" as she spoke, she pulled her hand from the bag and revealed two brass colored sleigh bells. They looked like Christmas decorations and seemed to be much larger and heavier than the ones currently dangling from Mackenzie's nipples.

Oh God! The new bells looked like they'd be much more uncomfortable to have hanging from her body!

Mackenzie couldn’t believe this was happening to her, couldn’t believe that she had **** but to present her body to this leering group of teens and go along with whatever degrading, vulgar display they demanded.

Seeing no alternative, she did as the girl instructed. Mackenzie leant her torso forward sightly so her shapley breasts hung away from her body; she could feel them staining to maintain their natural perky shape as the heavy bells hanging from each of her nipples mercilessly dragged at them.

“Come on!” said the green leader “we want to hear them!”

Closing her eyes, Mackenzie began to moved her torso back and forth, feeling her breasts sway and undulate. The bells moved too, rhythmically chiming and tugging on her nipples.

"Aagh! This really stings!"

"Faster!" ordered the green leader.

Mackenzie complied. At first the feeling was uncomfortable but manageable. But, as her momentum increased, the tugging became more and more forceful and the clothespins pinched tighter. The stress on her nipples continued to build as the bells jerked her tits back and forth in an agonizing rhythm.

With her eyes shut, Mackenzie tried to imagine she was somewhere else and that this whole day was nothing but a bad dream.

This can't be happening to me!

None of the teens watching said a word, the only sounds were the clinks and chimes the bells made as they moved.

After about a minute, Mackenzie stopped. It felt like she'd been shaking her tits at the group for hours. Surely they'd seen and heard enough. Surely she could stop now?

She opened her eyes as the green leader said "I don't remember telling you to stop, dog."

Mackenzie sighed and bit the inside of her cheek in annoyance but resumed the indecent demonstration of the bells.

After several more agonizing minutes, the Green leader finally relented.

"Stop!"

She stopped. By the point she was fighting back tears of frustration, pain and humiliation. Her chest was on fire, her tender nipples were somehow numb and sore at the same time.

"Looks like those bells aren't going anywhere"

At least her ordeal was finally over.

One of the watching Greens (who evidently wanted to extend the spectacle he'd been enjoying) suddenly yelled "well you've checked them going side to side but not going up and down"

Mackenzie groaned.

The Green ran over to the leader and began to whisper in her way. Their conspiratorial behavior was incredibly unnerving.

The leader smiled.

"That's a great idea!"

Without another word, the Green ran over to shed and disappeared inside.

"Here it is!"

A few moments later, the teen re-emerged holding an object over his head triumphantly.

Mackenzie gasped and turned to run when she realized what it was.