Robert adjusted the gun, making sure the gun was set on neutral muscle growth and height decrease. He smiled down at his sister in a devious way, anticipating the upcoming changes he was about to make to her.

"Stand up," he commanded her. "I want to watch this." Amanda did what she was told, afraid to rebel in even the slightest way. He then pointed the gun at her and fired.

Both Robert and Jess watched as the already small Amanda, to their perspective anyway, started to become even smaller. It happened slowly, with her clothes starting to become loose on her already petite frame. Her shirt's sleeves moved up her arm, while the shorts she was wearing began to sag slightly.

Amanda observed the already towering teenagers standing before her become even larger as time progressed. They looked down at her with a look of amusement on their faces, as if the events transpiring were the best thing they had ever seen.

By now, her clothes seemed to be two sizes too big, with the sleeves of her shirt coming up to her elbows. Soon after, her shorts had fallen to the floor, causing the two giants to chuckle to themselves.

"Why are you doing this to me?!" Amanda yelled up, as a tear cascaded down her cheek. "Aren't I small enough already?"

"You're small enough when we SAY you're small enough." Jess replied. "Right, honey?" She looked over at Robert, who nodded his head. She placed one of her enormous arms around Robert's shoulders and kissed him on the cheek, as they continued to watch what was happening to his older sister.

Amanda's MUCH bigger brother watched as she continued to shrink, reveling in all the power he now held over her, and that much more he possessed with each additional inch that she shrank. Robert laughed fa above her.

"Okay, okay," he finally said, after another thirty seconds or so had passed. "I think that's enough."

Amanda opened her eyes as the shrinking came to an end. She gasped as Jess took a few steps toward her and stooped down to get a closer look at her.

"Wow," Jess said, marvelling at the new size of Amanda. "She is SO small now." She grabbed Amanda by both of her wrists and stood back up, making sure to not apply too much pressure.

"It's like she weighs nothing at all," Jess observed. Amanda glanced over and noticed the arm that was holding her up. The bicep was much bigger than Amanda's entire head, and it looked so powerful. The hand above her was more than five times bigger than her own, upon closer examination.

Jess used her other hand and playfully pushed a couple fingers into the smaller girl's stomach, causing Amanda to produce a very painful "Ooof," sound each time. Jess stopped and noticed that a bruise, the same size and shape as her fingers, was forming on Amanda's midsection already.

"That must have hurt, huh?" Jess said, apathetically. "Well, that's what you get for watching me and your brother make out." She placed Amanda back on the floor and crossed her formidable arms in front of her chest, glaring down at the smaller woman.

Oh, how Jess had looked forward to a day like this. After all Amanda had put her through over the years...

Amanda stared up at her and noticed that the top of her head barely reached her crotch. She glanced down slightly and noticed that only one of Jess's thighs were bigger than Amanda's entire body! Amanda felt like a small child standing next to her.

Suddenly, the even bigger Robert walked up next to Jess and the smaller woman could finally see just how tiny she was. She only came up mid-thigh to her younger brother. He was absolutely huge! Quickly, he pulled the overgrown shirt off Amanda's body, leaving her in only her bra and panties, who themselves were ridiculously large when compared to her shrunken body.

"Look at me!" Amanda yelled, through her higher-pitched voice. "How could you do this to me?!"

This made the two giants laugh again.

"Wow, she sounds like one of those kids from 'South Park,'" Jess commented.

"Hey, you're right." Robert replied. "Hey, Amanda, could you say, 'Guys, I'm getting seriously pissed off right about now?'"

"This isn't funny," Amanda replied. "I look like an eight-year-old now. This isn't right!"

"Yeah, well," Robert replied. "We have the gun now. And if we wanted to make you even smaller..." He points the gun at her. Amanda's eyes go wide with fear. "...we could." He points the gun back towards the ground.

"Or, if we wanted to make ourselves even bigger," Robert continues. "We could do that, too. You see, WE hold the power now. Not you."

Robert then grabs Amanda around the waist and slings her over his immense shoulders.

"Come on, babe," Robert says to Jess. "I want to show you something. The little pipsqueak here can watch."

"But, where are we going?" Jess asks.