Kerry was annoyed with her younger brother Leo. He had been annoying her and getting her into trouble all the time. So one day she wished she had a little sister who wouldn't annoy her and who she would have more control over so she ordered some kind of powder off some website a friend of hers told her would help. So when it came she slipped it in his soda he left on the table. So when he came back...

"Hey big head." He said walking in grabbing the drink and guzzling it down. "What are you up to?" He asked.

"Oh nothing bro now please leave." She said already annoyed by his words.

"Okay, i'll go." He said putting his cup in the sink as he stuck out his tongue at her before leaving.

"Now when is this stuff gonna kick in?" She said reading the letters on the packet. Reading she found out. "Ugh. An hour, well at least mom and dad won't be home until later." She said as she went into her room and laid in her bed dozing off as she grew tired of waiting.

"OH MY GOD!" A voice echoed throughout the house as it awoke Kerry.

"Kerry, Help me!" The voice said as she heard a banging from her door. As she opened it she saw her brother had rushed in and ran to sit on her bed with his no longer brown but long pig tailed red hair going to his shoulder.

"What happened?" Kerry said trying not to smile just yet as she thought that the stuff actually worked.

"I don't know? I was playing my game when my hair just started growing and here I am." He said as his voice grew higher making him start to cry a little.

"Don't be afraid, I know whats happening." She said as her brothers head shot up.

"REALLY, WHAT!" He said.

"Its some powder I put in your drink. It's making you into the perfect little sister who will be under my complete control." She said as anger shot through her brother's face.

"YOU MEANIE!" He shot out as the word's he wanted to say didn't come out right. "Stop this please." He pleaded as his clothes turned into a mini pink night gown as he freaked out even more.

"No, I don't think so." Kerry said Leo's arm's and leg's became more soft and delicate as his face became more softer  while he felt two small breast form even though he couldn't see them because they had yet to develop given his current age.

"Now that your done the final effects should start to take over." Kerry said with a smile.

"Like what?" Leo said mad.

"Oh, you'll see." She said as Leo's expression changed as he began to rub his eyes.

"Why am I suddenly sleepy?" He said rubbing his eyes as he struggled to keep them open.

"Thats the final effect you'll fall asleep and when you wake up you'll only remember being my perfect little sister who likes all the stuff I like and does whatever I say." She said as she picked up her new little sister and carried her to her room and set her down on her blue race car bed.

"You won't get away with this." She said as her head tilted back and fourth. "Mom and Dad will-." He said not before being cut off by his sister.

"Oh don't worry thats why I bought this other packet. Which will make them think they always had two little girls." She said showing him another packet. "And before you ask I also bought some more for the other people we know so no one will get suspicious." She said smiling as she outsmarted her brother.

"Y-...you...won't...get...a-..way..wi.." She said as she couldn't resist anymore and fainted in her bed as her sister approached her and tucked her in.

"Now, now Leana you rest up. We have much to do later when you awaken." She said leaving the room cutting off the lights as her no longer little brother but new little sisters mind was changed forever.

"Now to add this powder to my parents drinks." She said ready to put the rest of her plan into effect as her parents arrived home from work.

"Welcome home mom and dad." She said hugging them smiling to herself as she put the rest of her plan into action.