Ellie woke up before her alarm, she was so excited to see if her hunch had been correct. She shot up, looking at her clock. 5.25 am. She’d beaten her alarm by 5 minutes! “Ahhhh,” she yawned, getting out of bed and bounding down to the back door, where she saw Alexis sitting, her upper body completely shrouded by her expansive thighs and ass. She was still asleep, or else Ellie’d have seen at least the top of her head: it appeared from here that Alexis hadn’t grown in the night, as she had done the last several nights.
Ellie ran outside, jumping onto Alexis’ ass, causing a massive ripple affect across her entire body. She continued to shake Alexis’ butt until her phone buzzed in her pocket.
A: STOP THAT!
E: sorry! just excited!
A: yeah...
Ellie climbed her friend’s buttocks, measuring it as she went. She crawled to Alexis’ torso, but was surprised to see her naked.
“Wh- why are you naked dude? The fuck?”
“I… my clothes just weren’t comfortable… I feel so much better without them on, to be honest. Maybe that has to do with my legs?”
“Maybe… anywho, I got a job to do here.”
She showed Alexis the measurement.
“60 feet!” she beamed, seeing at least part of their experiment being a success.
“YAY!” Alexis jumped, causing her large hindquarters to jiggle, throwing Ellie off balance and causing her to fall over, landing softly on her friend’s soft expanse.
“Now to see if you’ve grown taller…” she said, getting back up. Alexis watched her walk down her leg, not seeing it seem too far longer than it did yesterday from her angle. Once Ellie reached the end of her leg, she hoped off, sending a picture of the end measurement to Alexis.
E: [picture]
A: im not any taller! yay!
E: yup!
Alexis danced a little, shaking her upper body, causing small ripples in her lower mass. She then stood up, walking over to the scale. She stepped on, Ellie quickly following suit with a photo of the result.
A: so am I any heavier?
E: nope! i mean, just a little, but only .01 of a ton
A: yay!! the experiment worked!!
E: i do want to try something else, however…
A: o?
E: sit down i wanna tell u this in person
A: ok!
Alexis quickly found a suitable location in the field and fell, her ass squashing and spreading incredibly far. “I’m… I’m really starting to love this body… even if it’s incredibly inefficient,” she thought to herself. Soon enough, she felt Ellie’s body start to climb her expansive, smooth flesh. Several minutes later, she reached Alexis, and sat next to her.
“So, you know how the Coke didn’t trigger the changes, but the tap did, yeah?”
“Uhhh… yeah?”
“Well, I was thinking. The tap water was distilled, but it IS locally sourced. You only grew a ‘little’ with it, while not at all with the God-knows-where-from soda water, right?”
“Riiiight…”
“So, maybe we should try you only drinking from the stream that heads through the field, down on the far left by the forest…”
Alexis looked at her shocked, but slightly intrigued. “What if I did drink from it… what would happen? How big would I get?” She was definitely curious.
“Well, why not?” she responded. Ellie looked ecstatic.
“Alright! I’ll go get some jugs for you!”
“Ok!”
Ellie bounded down Alexis’ body, becoming more and more equated with climbing her friend’s massive hindquarters. She then walked back to her house, grabbing some jugs and putting them in the back of her truck. Alexis watched as she drove her truck to the stream, and put the jugs in it, filling all 4 of them with stream water. She then heaved them back into her truck, and drove over to Alexis.
E: ok i have 4 they should be light enough to carry
A: ok!
Ellie started to roll one up to Alexis. It was quite heavy, sinking deep into Alexis’ ass. She heard her moaning, figuring all of this tissue must be incredibly sensitive. The cold water started to sweat out of the bottle, too, moistening Alexis’ butt as she climbed. “God, this really is a water bed now…” Ellie joked to herself, slowly climbing up to her friend’s torso.
When she reached it, Alexis reached greedily for the several liter bottle, chugging a lot of it. “God, I’m so thirsty…” she sighed between gulps. Ellie said she had to go to work, to get some food and cash.
“Seeya, Ellie,” Alexis said, her friend turning around during her descent to say likewise to her.
Alexis was now left alone, again. Just her and the fields. She walked around, feeling the grass tickle her massive, growing udder, her huge legs and ass shaking as she walked. She ate actual tons of leaves, stripping several completely of their photosynthesizing organs. When she wandered back to Ellie’s house, she saw she had put the 3 other jugs of water on her roof, leaving the ladder to it up next to them.
“Aww, she really does care…” Alexis sighed, placing her now empty one next to the 3 full ones, taking another. She gulped and gulped and gulped, for some reason thirstier than the Sahara Desert in a 12 year drought. She just couldn’t get enough of the water!
Eventually, she drained all 4 jugs. She sat down. She barely had stopped jiggling when she heard Ellie’s truck pull in, her friend quickly running around back with several large pizzas.
She climbed her friend, giving her 5 of the 6 pizzas she had purchased, Ellie’s being the only small. Alexis chowed down on her 5 large pizzas, wiping her hands on her ass as the two chatted for several hours about her changes, what they thought the stream water would do to her, everything. After they had finished, the sun had gone down, and Ellie slowly descended her friend go back inside.
Alexis stayed up well into the night, her udder feeling incredibly distended. She rubbed it, hoping to ease the feeling. All she felt was a little milk leak out of her teats, creating quite a bit of pleasure, although she couldn't actually see them: they were over 30 feet away from her. Eventually, however, her tiredness overcame her, and she fell onto her ass, bouncing slightly on it, falling asleep almost immediately.