Sarah then fired the gun directly into her chest, making sure it was only a short burst. The familiar feeling swept through her body as she grew once more.

Her arms expanded, almost filling out the shirt she was wearing, until they reached 24 inches in circumfrence. Then her breasts increased in size. Sarah could feel her pectoral muscles become harder and stronger, pushing her bust out that much farther, before the breast tissue itself began to swell. They eventually grew to nearly double the size they were only moments ago.

Next, her legs grew, stretching the fabric of the sweatpants Amanda gave her outwards. Not to their limit, mind you; they WERE sweatpants, after all. But just enough so that her monstrously huge quadricep and hamstring muscles stayed hidden.

Sarah's back grew next, followed by her shoulders. Her abs drew in and tightened further. Finally, she grew another three inches in height, making her 5'10", one inch taller than Amanda's brother Robert.

"That should do it," Sarah said, handing the gun back to Amanda. "You girls ready?"

"Wait a minute," Amanda said. "There's something I want to do first." She began adjusting the dials on the gun again. Satisfied with the settings, she opened the bedroom door a little further and pointed the gun at Robert, still oblivious to the girl's presence. Amanda then fired, hitting her brother on the leg.

"What are you doing?" Bethany whispered. "He might see us."

"Relax," Amanda whispered back. "I know what I'm doing."

All three girls watched as Robert began shrinking, his legs slowly creeping up the mattress of his bed, as the rest of his body became smaller as well.

"Ever since he hit puberty," Amanda continued. "He's been pushing me around, picking on me. Using his superior strength to pin me down or to hurt me. And for the past two years or so, I've stayed quiet about it, unable to defend myself." They watched as Robert continued shrinking. "Until today, that is."

"How much smaller is he going to get?" Bethany asked.

"I want him a foot shorter than me," Amanda replied.

"A foot shorter than YOU?" Sarah remarked. "Wow. You must really have it out for him, then."

Suddenly, the shrinking stopped and the muscle decreasing function kicked in. His stocky frame, which Robert had developed over the past year or so, started to deflate. The muscles on his arms and chest became smaller, making the shirt he had on, which was already big, thanks to the height loss, appear that much bigger on him. Eventually, his upper body resembled that of an typical teenager.

He moaned slightly, his eyes still closed, perhaps imagining this entire episode as nothing more than a nightmare. He soon drifted back off to sleep.

Pretty soon, his lower body caught up with his upper body, giving him the overall appearance of a teenager that had never picked up a weight in his entire life. Skinny arms, skinny legs, flat chest. His abdominals still had some definition, but they were the only muscle group that did. At best, he now resembled a cross-country athlete.

Then, the process stopped.

"NOW I'm ready,' Amanda said to her friends, as she entered the room, with Bethany and Sarah following behind her. The three girls approached the bed.

"So, how should we do this?" Bethany whispered, making sure to not wake Robert up.

"I know," Sarah replied, leaning forward, towards Robert.