Celestial Growth Word

Acid Flask stands in the middle of Celestia's room. Her giant bed sitting across the way from the door. The room was circular, with a few bookshelves and a desk lining the outside of the room. To his left stands Celestia looking out on her balcony. Her majestic hair and her pure white coat make Acid feel skittish. The two have known each other since he was seven, but he still feels wrong around her. He always thinks to himself, "Why did she ever choose me as a student?"

He starts to walk over to Celestia as his eyes, against his own will, trail down her back and straight to her butt. Her plot was the biggest he has ever seen. Nice and plush, and with that beautiful sun cutie mark showing off her nice curve. He shakes his head while trying to remove the image of her magnificent butt. He stops next to her and looks out into the city. She is unfazed by his presence.

The two stand there, admiring the slow sunrise Celestia was bringing up. She smiles as her magic washes over Acid Flask's body. Acid Flask smiles and returns the gesture to her. The two let each other go from their magic hug before Celestia talks in her sweet and silky voice, "Nice to see you again Acid,"

"Nice to see you to Tia," Acid says a little bit more wavery than he would like. He smiles up at her as she looks down at him with a kind smile.

"Do you know Twilight?" Celestia asks. Acid scoffs at the questions.

"Who doesn't?" Acid replies. "I never got to know her, but being your student, we both ran into each other from time to time," Then a question popped into his head. "Why are you asking?"

Celestia chuckles as she turns around to face Acid properly. "My former student Twilight has accidentally found a very.. interesting spell." This intrigued Acid, he raises an eyebrow in anticipation. "It was a growth spell that can cause pleaser to the user. I thought I would ask my closest friend if he would like to try it out with me?"

Acid's face goes from happy to shock, his ears flopping against his head. "Did the princess just ask me to have sex with her?!" The first thing that pops out of his mouth is. "Is Blood Moon ok with this?" "Why am I even asking!? I should leave right now,"

"Don't worry, I already talked to her about it," Tia responds calmly. Acid shakes his head back and forth as his head floods with so many questions.

"No, I don't think I can do it," Acid says as his horn glows orange. With a pop and a flash of orange light, he disappears. Celestia chuckles and walks slowly over to the bead.

"He's not going to get far," Tia thinks while looking at the caller that usually is around Acid's horn, now sitting on her bedside table. In a few seconds, another pop and a bright flash of light, Acid reappear on the bed.

"What?!" Acid says, looking around, confused. Celestia smiles as she watches Acid look at his horn caller on the nightstand. His dick out of its sheth and half-erect already. "You bitch!"

"Is that what you call your friend?" Celestia asks insulted but with a child-like grin on her face. Acid looks at her angrily. The two stare at each other before Acid sighs and sits down on the bed.

"Fin," Acid says reluctantly. "but make this quick,"

"Looks like your dick goes against your feelings," Celestia chuckles as she sits down in front of him. His throbbing cock is almost the same length as his body and almost the same thickness as his muzzle.

"So," Acid asks, relaxing. "Do you need to cast the spell?"

"Nope," Celestia says, rubbing his dick slowly. Acid closes his eyes and grunts in pleaser as he feels her soft fur rub against his dick. Acid's eyes snap open in epiphany.

"You slipped the spell in during our greeting!" Acid yells. Celestia smiles sweetly at him.

"Nice to know you are still smart," Celestia says before taking a big breath and explaining. "I put it on both of us, it works when a trigger word is said."

"So what are they?" Acid asks, slightly impatiently. Celestia chuckles before continuing.

"Yours is Flask." Almost immediately, Acid's body is wrapped in a white area of magic. He grunts as pleaser runs through his body. He smiles as his eyes and mouth relax. The magic stops, leaving him a foot taller than normal.

"That was heavenly," Acid says, still entranced.

"Mine is Sun," Celestia says, before being wrapped by the same magic as Acid. She stands up so Acid can see the hull thing. She closes her eyes as her plot grows to double its original size. Acid watches in awe as her flank grows, causing his dick to let out pre-cum in excitement. Celestia opens her eyes to see Acid looking at her plot.

"You can say the sun has risen?" Acid says with a cheeky smile. Celestia closes her eyes and lets out a light moan as her butt grows again. It is now completely visible from where Acid sits.

Celestia opens her eye halfway and looks at Acid. "Looks like somepony got in the mood quickly." She rubs her face against his throbbing dick.

"It's kind of hard not to be when watching your royal butt grow." Acid lovingly places his hoof on her cheek. She smiles at the touch before she gently pushes him back and opens his legs.

"Let's warm you up first," Before Acid can respond, Celestia takes in his entire dick into her mouth. Acid shuts his eye hard, moaning as his legs twitch from her warm mouth. Celestia looks up and smiles as she watches her student twitch from her touch. She starts to thrust up and down his large shaft as she licks her tongue against the side of his dick. Acid's mind is flooded with pleaser as he thrusts his hips into her mouth on instinct. She chuckles as she speeds up her thrusts. Acid slightly recovers as waves of pleaser still wash over him.

Acid chuckles before saying, "I guess the Sun is sucking off a giant Flask." The two moan in unison as the magic washes over them. Acid pants as he grows taller and his dick grows thicker and longer. He watches as Tia's rump grows bigger and wider. He imagines rutting her plump rump as the familiar sensation starts to build up inside of him. The two stop growing as Acid grabs Celestia's head and thrusts small but hard thrusts into her head as he moans. His cum coated the inside of her mouth and throat. She relaxes as it happens. Acid finally stops and falls back onto the bed. Celestia pulls off and swallows the cum as she licks her lips.

"You ok?" Tia asks.

"Ya, just took it out of me," Acid says, rolling onto his side to look at Tia. Celestia closes her eyes as she feels the magic take over her goddess-like body. She lets out a quiet moan as her butt and body grow. Acid watches as her rump grows to the size of two fully inflated beach balls. His dick hardened again. He looks down and sits up in confusion.

"how am I hard?" Acid asks.

"The spell allows the stallion to have more than one orgasm," Celestia explains. Acid is unable to respond before Celestia sits on his lap, crushing his dick between him and her plot. "Now lay down so I can keep warming you up for the BIG stuff," Acid doesn't argue and lays down as Celestia sandwiches his dick in between her heavenly cheeks. "Time for the sun to rise again," Celestia chuckles at her own joke before her but starts to grow again. Acid sighs as her butt consume his dick in her soft plump rump.

Celestia slowly starts rubbing her butt up and down his shaft in a butt job. Acid shivers at her butt, gliding smoothly up and down his dick. "The sun rises, but so does my.." Acid moans before continuing. "Flask's dick." The two shivers and moan as the two start to grow. Acids dick starting to barely pock over her plot. Celestia's butt starts to grow bigger, taking up most of Acid's visions as the two start to grow bigger.

"Flask's sun, that sounds interesting," Celestia says aloud. The two moan again as Acid starts to become to big for the bead and as Celestia has to bend over so as to not hit her head against the ceiling. The growth and the majestic plot on top of him cause him to go over the edge. Acid grunts and yells,

"I'm cumming," his hips thrust up as cum pulses out and lands on Tia's butt.

"Cum on me big boy," Celestia says, still moving her butt up and down his cumming dick. Acid finally stops as the cum disappears and turns into white magic. Tia's butt starts growing at an alarming rate as so does her body. Her butt covers everything but Acid's head as she grows to fill the room.

"Looks like somepony is getting too big," Acid says, hugging her plush, giant butt.

"Let's finish this outside," Celestia says, teleporting the two outside. They land in the snow on the side of the mountain. Acid shivers for a second before Celestia's warm magic washes over him.

"Heat spell?" Acid asks as the two stand up. Celestia towered over him, with her giant butt being the main attraction.

"Correct, but I think if you want to rut my Flask, you're going to need to be bigger," Celestia says with a smile. Acid blushes as the magic takes over him. His dick was now longer than his body and almost as thick as his legs. His body grows taller, now only just a head shorter than Tia. "Mabey one more time Flask?" Acid shivers from pleaser as He grows taller. He is now ahead taller than Celestia, his cock pocking her in the chest. She looks down at his cock as she rubs her hind legs together.

"Now time for the fun," Celestia says turning around and pressing herself against the ground. She pushes her butt up into the air. Acid can't help but look at her glorious big majestic plot as his dick hardens completely again. Acid wordlessly gets on top of her and lines up his dick with her slit. He gently slides in his dick, causing a light moan from Celestia.

"Ready down there sun butt?" Acid asks with a smile. Celestia moans loudly as her butt and body grow again. Her butt becomes the size of her room as her body tries to keep up with her rump. "I need a kick of Flask before I start now," Acid says, his dick now at a painful 65-degree angle as he is now shorter than her. He moans as he grows taller and his dick grows bigger. Once he can safely lean over her plot he starts to thrust into her.

She shivers and grunts in pleaser. Her royal rump giggling with every thrust of Acid's big dick. "You could say The sun has found its Flask," Acid says through moans and grunts. Tia basically crumps to the ground with only her plot held high. The two starts growing again. The two moan in unison as Acid's dick grows inside of Tia with every thrust. Her rump grows to almost the size of her castle. The two Grow taller than the mounted in front of them. Canterlot castle now clearly in view. Tia pushes her face against the face of the mount as Acid picks up his thrust.

Her rump and body giggling with every powerful thrust as the build-up of both of them start to become too much. "Show me how much you worship the royal sun butt," Tia says through grunts and haze. Her plot grows again as it starts to surround Acid's hips. She grunts as he thrusts hard into her and stays there.

His cum sliding into her causing her to grow even more. Her plot now surrounds Acids as her body gets bigger than the mountain. Acid quickly slides up onto her now mountains rump as to not fall down. The growth slows down to a stop as the to lay there in the morning sun.