I told Amanda to go up to my room, when she got up to my room and closed the door I turned my attention to Katie. 'So, little brother gonna try and get some?' she said smugly. 'well, yea I guess I am' I replied. 'Well Not while I'm here you little Puke, I've got my boyfreind coming over and you're leaving.' 'What should I?' I replied. 'Well simple stupid, I'm older than you so I have senority' 'Well' I said 'I wish we were the same age.' Katie Laughed, 'What difference would that made?' Not noticing that she had shrunk 4 inches and a bra size. She Had gone from an 18years old and 5'10 to 15 years old and 5'6, 2" shorter than me now. Her chest was still Big tho, she had developed early and her chest hadn't diminished much. She looked confused as she looked up in to my eyes, UP? 'Makes alot of difference, SHorty.' 'What? she checked my feet to see what I was standing on, but there was nothing there. 'What happened?' she asked. 'We're the same age now.' 'But how did you do it?' She said checking her body with her hands, she felt her bra, it was a little loose, but her form fitting dress was very loose, especially around her hips. 'None of your business, now, are you gonna leave or do I have to give you another demonstration?' She got angry, 'Screw you, I don't what you DID to me I' still the older one here!' 'Suit yourself' I said smugly 'I wish you were 5 years old.' A look of terror crossed her face. 'NO!, please don't!' Katie began to shrink imediatly, after 4 inches of height loss, her Chest finally began to deflate. It went from C-cup to A cup almost instantly and then to nothing at all, her X-small dress had swalowed her up. It was hard to beleive that this dress that barely covered her, now was Way too big for her. The Little 5 year old looked up at me and began to cry. 'Please, change me back! Please!' Well that depends are you gonna leave?