"Sid, it's me, Zach. You older brother, " said Zach.
He reached for the phone, but she kept it out of his reach.
"Bullshit!" said Sydney. "You are way too short, and you sure don't look like a guy. Who the hell are you, and what are you doing in my brother's room? Tell me now, or I am calling the police."
After retelling several embarrassing stories about Sydney's youth that only Sid and Zach knew about, she quickly believed him.
"Okay, okay. That's enough. I don't need to hear any more about that stuff. Living through it once was bad enough. So you are Zach. How did you end up like that?" asked Sydney.
"It doesn't matter, " said Zach angrily. "Just give me back my phone!"
"What this? " said Sid, as she looked over his phone. "Is this what did it? Cool, it has sliders!"
She slide the height marker down to three feet, and Zach rapidly shrank. Sid looked at Zach and laughed.
"You look so cute! Just like a little girl!" laughed Sid.
Zach stamped his foot, and squeaked, " I am not a little girl. Now give it to me, so I can change back."
Sid continued to hold it out of reach, just above his head. "I'll say. You're a little too well-developed for a little girl. You look more like one of those 3 foot tall Barbie Dolls." Sid's eyes lit up, and she began to smile wickedly.
"No, don't do it, " Zach pleaded. "Don't even think about it."
"How are you going to stop me, pipsqueak? Or should I say, soon to be pipsqueak?" said Sid.
She slid the height marker even further down, and Zach felt himself shrink down to just twelve inches tall. Zach stared at Sid's feet, realizing that she had entered the room barefoot. Her toes seemed enormous, and he barely was eye level with her ankle. She leaned down to look at him, and her massive face frightened him.
"How's the weather down there, shorty?" said Sid. She picked him up in her hand, and stood up. The rapid ascent made Zach sick to his stomach, and he almost threw up. But he kept it in for fear of upsetting the giantess that was his sister any more. She eyed him carefully.
"You may be her size, but you don't look exactly like a Barbie Doll. You look more cute, than womanly. If you are going to wear her clothes, we are going to need to make a few adjustments, " said Sid.
Zach didn't like the sound of that. He had no intention of dressing up in doll clothes, much less gaining a more womanly figure. But it didn't matter what he thought. Sid was in control. She carefully examined the settings on the phone, and made the necessary adjustments.
As she hit enter, Zach felt his body changing once again. His waist became impossibly thin, as did his wrists and ankles. His chest and abdomen contracted a little, as his legs stretched longer and thinner. His breasts ballooned to a large DD, and his blonde hair trailed down his back.
"Perfect, " said Sid with excitement. "Now wait right here. I think I have some old doll clothes in my closet."
Sid placed Zach on his bed, and ran out of the room.