koalster: John woke up with a headache. He wasn’t entirely sure what happened to make his head

koalster:

John woke up with a headache. He wasn’t entirely sure what happened to make his head hurt. He ran through yesterday in his head as he sat up in bed, rubbing his sore spot.

‘Woke up, made breakfast…” He thought, fighting his sleep-addled memory. “Went out to the dunes with Elizabeth, found that shiny rock, figured out it was a powerful artifact from another dimension…’

The gears started turning in John’s head. “Oh FUCK” He yelled, suddenly realizing what happened.

The two siblings were hanging at the beach yesterday, walking along the shore trails. He remembered seeing a shiny rock, but when he picked it up he saw stars. He came to a second later when his sister snatched the shiny pebble from his hands. Strangely enough, he couldn’t remember anything past that.

‘Shit, I hope Elizabeth is ok!’ He thought, mind racing. He pulled on a shirt and ran into the kitchen. “Oh my god Lizzy are you alri…”

He ran around the corner and saw a gigantic Elizabeth, clothed with enough fabric to cover the entire abstinence club at the local catholic college. He had nearly ran into her knee at chest height. Considering John only came halfway up her thigh, this girl was huge!

He looked up, and up, and up. The girls breasts were something else. Absolutely massive tits stretched the gargantuan top, peaking out below the hem as it just wasn’t up to the job of keeping her covered. If she was normal sized, these boobs would’ve been impossible. At Elizabeth’s current height, they could probably crush a car. Huge nipples poked through the makeshift shirt, nubs like coke cans clearly visible.

Even though John wasn’t standing directly under his sister’s bust, he still had to back up to see around the side of her breast, where she was resting her hand. She was talking with mom like nothing was out of the ordinary and her daughter was always a giantess. Thinking about it made his head hurt.

Elizabeth looked down at her brother. She had to turn her head to the side to see him, moving her under-clothed bust out of the way. He looked so tiny! Well, everyone did at this size.

“Well, good morning to you too.” She said with a sarcastic tone as she noticed her brother run in to the room yelling.

“Elizabeth!” John knew it wasn’t normal for his sister to be so room-filling, she was completely average yesterday!

“Dude? What? It’s way too early to be yelling like that.” The girl turned to face her brother, with John taking a few steps back to maintain eye contact. She used her hands to squeeze her breasts down to see him.

“What is wrong with you?” John stared up at his oversized sister. “Wh-”

His mom cut him off. “JOSH. You know your sister has a condition.” Josh received a steely glare from his mother.

“Yeah, John. That chemical exposure in my chem lab? Been growing like a weed ever since!” She released the squeeze on her boobs, causing them to bounce against the fabric. She put her hand to one side of her mouth as is to keep a secret, leaning down and whispering to John, “It was definetly that space rock from yesterday.”

“Don’t make fun of me for my condition, dude.” She said, sternly, leaning back up.

John wasn’t sure what to make of this. He was equal parts confused, scared and in awe at his gigantic sister. He has vivid memories of what she was talking about; a freak reaction to a chemical spill in her general chemistry class caused her to grow into this giant.

He remembered it happened in the fall semester, and when John and Elizabeth were home for thanksgiving she was already taller than him. And bustier than any girl John had seen outside of porn. Two weeks later when he got back for winter break, his sister was a foot taller and twice as busty.

When she got back to the dorms for the spring, she was head and shoulders above the door frames and her boobs were brushing the sides. About a month after that she had to move dorms because she wasn’t getting along with her room mate.

(Rumor has it that Lizzy had sat on her by accident and nearly crushed her.)

A month after that, her parents just pulled her out of the dorms all together, citing repair bills from the school and the general mental well being of their daughter. Thankfully, they struck a deal with the school to let Elizabeth take online classes.

Every time John came home that spring, his sister was bigger. Repair bills for broken dorm furniture became bills for new home decor and renovation, every week or so the gigantic girl breaking something else. Clothing was also expensive, as the only thing harder than keeping Liz and her ever increasing breasts from smashing things was keeping them covered.

All of these memories flashed in John’s mind. But he also knew things were normal and remembered yesterday clearly. That is, up until his sister swiped that stone.

“I remember your 18th birthday when you asked to be a strong, powerful woman.” Their mother sipped her tea and rustled the paper. “Good thing we have these high ceilings.” She laughed in that way only moms can.

Elizabeth gave John a sassy look, the boy swimming in his thoughts, trying to figure out what was real and what was altered. Was his ceiling always vaulted? The only thing he knows for sure is he’s looking up at a huge girl and that huge girl was his sister.

“Well, I think I’m gonna go hang with the football team.” Elizabeth said, walking towards the extra-wide double front doors.

“Oh, you mean Brad and Chad?” Her mom called out after her.

“Nah, all of them. They should be having practice right about now.” Elizabeth arrived at the front door, and even though it was oversized it only came up to her waist. She bent down to leave, pushing open the doors as a loveseat sized ass peeked out beneath her tennis skirt. “They could use some conditioning anyways.” She remarked as she squeezed her tits through the opening.

“Oh, well, have fun!” Her mom yelled. “Hopefully she doesn’t break anything.” She mumbled to herself. “Or any one.”

After some wrastling of tits like compact cars, Elizabeth was through the door. John watched her rise back to her full height and start walking off towards the community college. Even when she was outside he could still hear the thumps of her footsteps.

John’s brain was still firing at about a mile per minute. He had no idea what to do, he could only hope Elizabeth didn’t get in any trouble.

Or worse, get any bigger.