Dwindling Sibling: part 2

Holly slotted the key in her front door lock and turned the key. She then entered the house, slipped her shoes off and closed the door behind her. The clock just struck 1:30 pm as she walked into the house. Holly started to ascend up the stairs. She entered her room and placed the bags on her bed. She then closed the curtains and shut the door and took the two bottles out of the bag. Holly was now very cautious, she has got over the shock of the demonstration earlier and wants to be sure how the stuff works. The Instructions read:
Minimizer, instruction for use:
250ml =full body size
A sip of antidote will restore size
Holly blinked at the label, that's it; she thought to, herself sound easy enough. She stormed down stairs, grabs two tumblers from the cupboard and rushed back up. She placed both glasses on the bedside table and unscrewed the Minimizer, and poured it into the first glass. The red liquid had a scent of fresh berries and apples; she stopped when the glass was a quarter full. Holly unscrewed the second bottle and poured a dribble of the antidote. The antidote was a bright orange and unsurprisingly, had a scent of orange. Holly screwed the lids back on the bottles. She then picked up the glass of red potion and stood in the middle of her room.
"Hold on to your butts," Holly muttered to herself and began to drink the potion.
As she drank, she started to admire the taste. The sweet taste of berries and apples really helped her to keep the substance down her throat. She finished the glass and placed it on the table, suddenly she started to feel a tingling sensation rush around her body. She began to feel slightly dizzy and sat on the bed, as she does she feels her bra strap slip. She quickly fixes it. Slowly, Holly's feet started lift, her toes lost touch with the floor.  Her white ankle socks started to loosen and loose there tightness. Holly jumped to her feet; the sleeves of her red hoodie now engulfed her hands completely. Her skin tight jeans now loose around her legs and were starting to slip down her hips. Holly gripped her jeans to keep them from pooling around her ankles; she looked around at the sheer size of her room. The bedside table now the same level as her belly button and she continued to dwindle. Her hoodie had now swallowed her with the bottom covering her knees. Holly could hold her jeans any longer and let dropped and panties around her ankles, her bra slipped off her shoulders and hung loosely by her arms. The sensation stopped, Holly stepped out of her jeans and walked across the room, her oversized socks slipped off her now tiny feet. Holly stopped and spun round, she was in amazement of how big everything was! The bed next to her was now level with her cleavage; her chest of drawers were like towering walls and her old converse all stars looked like clown shoes. She looked at her Jessie doll on her bedside table; now a lot bigger than before, but still a reasonable size for a toy.
Holly giggled when she turned to her mirror, "Aw, I look so cute!" she squeaked, starting to giggle again when she heard her now higher pitched voice.
Holly snapped out of her amazement, she realised something. Then smiled to herself, "It works… now its gunna get a little bit more fun!"
Holly reached for the glass the antidote was in and but then stopped herself. How small am I? She wondered, I mean there's no fun if the plan goes wrong? Holly reached for a paper tape measure that she had placed on her bed before she shrunk. She stood against the wall and took the measurement. This was easier said than done; her over sized hoodie weighing her down, her hands were completely engulfed made it hard to keep the top of the tape measure on the wall, but she over-came it.
"4'6! Wow, I'm the size of a kid!" Holly was in shock, but was excited and giddy. It was years since she had seen the world in this perspective; Holly found it hard to believe that she was in her small, cramped room, now bigger and a lot more roomy.
Although holly loved her new size, she knew that if Megan saw her like this she would take full advantage of her. Holly snatched the antidote glass and sipped the drop that was inside. Holly grew back and re-clothed herself; she grabbed the tumblers and took them down stairs to wash them. Holly returned to her room to collect the bottles of potions, she inspected the bottles in more detail.
TO SLOW DOWN EFFECTS OF THE SHRINK, MIX WITH OTHER DRINK(S).
APPROX. AN EXTRA 10 MINUETS FOR EVERY 75 ML ADDED.
Perfect, thought Holly pulling a large grin as she thought of the possibilities. She looked at the clock, 3PM, just enough time to watch some telly or play on the Xbox until Megan gets home. Holly put the bottles at the back of the fridge so Megan wouldn't find it.
It was 5PM, "HAVE IT BITCH!" Holly was completely immersed in this game. Even though Holly was a girly girl, she had a talent for first-person shooters. She was playing a game of Rush on Battlefield 3; the bomb was about to be defused, M x ShAdOwS (Holly's gamer tag) had spotted the try-hard, mantled over the wall and slotted him with her trusty Scar H. The bomb exploded, the screen went black and the words, "YOUR TEAM WON!" appeared on the screen. Holly felt a huge amount of satisfaction; she turned the Xbox off and left the living room to get a drink, all that pwnage was thirsty work. As Holly opened the fridge, she heard the front door open.
"Home, Short stuff!" shouted Megan, unaware that Holly was only in the kitchen.
"In the kitchen, Meg. Anyway what you doing back this early? I thought you were going be gone at 11AM and back at 11AM tomorrow." Asked Holly surprised to hear Megan this early in the day.
Megan entered the kitchen, holding a can of Monster in one hand and her navy zip-up hoodie; she was wearing a pair of tight, black leggings, with a pair of dark denim shorts on top. This really showed her curves off to her friends and especially to Holly. Megan's grey, studded jersey really accompanied her curves just as well; as she walked into the kitchen, Megan was removing her flat ankle boots, freeing her purple socked feet. She placed her hoodie and drink on the work top,
"Nah, I lied to them saying that I wasn't feeling too good. Just gonna relax for the night."
Holly was suspicious of her sister; Megan was normally the first to get to the party and, unfortunately, the last to leave. Holly decided to change the subject,
"So, how was it today?"
"Great, I won't bore you with the details, but it was fun," Megan winked at Holly the word 'fun', emphasizing that it was a bit more than just fun. "I know this is a bit different to my normal self, but I can't be asked to go out especially now mum and dad are gone." Megan left the kitchen, "I'm going to get into something more comfortable, don't touch my Monster."
Holly had to act fast; the fridge was already open during the 2 minute conversation, she grabbed the bottle, unscrewed the top and poured about 60ml into the can. Holly swiftly returned the top to the bottle and placed it back into the fridge. She worked out that if there was 60 ml that was poured in, that would be a loss of 17 inches, equalling 52 inches overall, 4'3! She grinned ear to ear and brought the can into the living room.
"That's the height of a little kid!" Holly loved the thought of her sister being the size of a child, in baggy clothing trying to work out what the hell was happening to her. Holly placed the drinks on the coffee table and picked up the remote to change the channel.