Scootaloo sits on her bed as the sun rises over the small town of Ponyvill. The light pours in as she pulls on her blue crop top over her deliciously flat and fluffy chest. Her lack of breasts has never truly bothered her, but still it felt wired being the only flat chest in her trio of friends. She stands up before sliding on her skin-tight blue jeans around her very thick thighs. Her thighs and butt were the main reason she never was bothered by her flat chest. She could, if she wanted to, crush a ponies skull between her legs. She looks down at the black spiked collar that sits on her bead side table. Hanging in the center of the collar is a dog tag with her name on it. The collar had been delivered to her a while back but she had never gotten around to trying it on herself.
"Couldn't hurt," Scootaloo says, shrugging before grabbing it and heading over to her stand-up mirror in the corner of her room. She looks at her reflection as she puts on the collar around her neck. Staring back at her is a slender but pretty buff mare with thick thighs and short spiky purple hair up in a mess like every other day. She lowers her arms to her side and smiles at herself. "Looking good there sexy," Scootaloo says, looking herself over as she places her hands on her hip with a cooky smile. She looks a little surprised at her own words before lightly shaking her head.
"That was a wired boost of confidence," Scootaloo thinks. She goes to just shrug it off, but her head suddenly feels like it could float away off her shoulders, causing her to stumble back for balance. Her arms flail about before she inevitably falls back onto her bed. Her heart rate rockets up like she had just gotten done running a marathon. Her face turns red as her body starts to tingle a bit. Her entire body starts to slowly heat up as the tingling raises up to her chest. "What... the..." She whispers before closing her eyes. She takes a deep breath, and at the same time, her breasts grow out a bit, pushing against her already tight-fitting crop top.
"Ahhh!" Scootaloo quickly and suddenly releases her breath with a hint of a moan. She opens her eyes and looks down at her breasts peeking out of her body. "What's going on?" Scootaloo says right before leaning back on her hands and pushing her chest to the sky. She lets out a loud moan as her breasts rupture in size. Growing to double their size in almost a blink of an eye. Her crop top threatens to pull itself apart from the force of her breasts growing.
She straightens and looks back down at her breasts again in utter shock. "How are they growing?" She asks, gently holding one of her new soft breasts in her hand. She shivers a bit at her hand gently touching her chest. Her wings had already spread out behind her from the pleasure of her growth. Scootaloo gently squeezes her new big breasts, causing her to let out a little moan in pleasure. "Fuck, they're even sensitive," Scootaloo moans as her nether region starts to tingle in pleasure.
"You're gonna get much bigger," a very feminine voice whispers in her head. Before she can register it, another wave of pleasure shoots threw her body.
"AAAHHH!" She screams in pleasure. Her back arches as her wings quiver. Her eyes roll up into her head as her rump grows bigger underneath her. Her jeans stretch with her slowly growing rump as it pushes against her pants. Scootaloo sighs, her eyes now just white, as a smile forms on her face.
"Finally, a mare that can handle my size," Scootaloo says, looking down at her slowly growing body. Scootaloo grimaces before leaning to one side. Her eyes return to normal as the growth stops. Her breasts hanging from her chest like water balloons while her butt had grown double in size.
"What's happening," Scootaloo grunts out, gently touching her breasts. "Why is this happening?" Scootaloo asks, looking back down at her much bigger butt.
"You and I are becoming one," the feminine voice responds. "You are going to get your wish Scootaloo. You're gonna be the biggest mare in your friend group,"
"Who are you, and how do you know my naaaamme!" Scootaloo is cut off by another wave of pleasure. She arches her back up as a blood-curtailing moan screeches out of her mouth. Her breasts slowly start to grow bigger, pushing tighter and tighter against her crop top. They start flooding out the top of her crop top before they finally bust out of their confinement and flop freely against her body. Her entire body starts to rapidly grow bigger. The room around her slowly gets smaller around her as she grows bigger.
She gets so big that her weight crushes her bed, sending her to the floor and onto her back. Scootaloo moans in pleasure as her soft butt lands on the ground hard. Her tongue slips out as she starts panting. Her vagina screams for attention as the pleasure overwhelms her. Her face is bright red as all thoughts keep going back to the pleasant sensation of her body growing bigger and bigger.
"Yes, embrace it," the voice says as Scootaloo's growing body starts to crush her other furniture. Her hips alone almost touched wall to wall in her bedroom. She started to bend her legs to stay in the room as her head hits the other wall. She curls up a bit as she tries not to break the room. Her breasts start to squeeze against one of the side walls, causing Scootaloo to shiver in pleasure as they are compressed against her chest.
Her butt starts putting pressed up against the other wall as her back does the same. Scootaloo is lost in the bliss of growth as her wings grow out and bend against the ceiling and floor. The walls start to crack as her entire body starts to fill the room. "Grow my girl, grow big!" The voice commands, causing Scootaloo to uncurl quickly, breaking down the walls of her house. She lays there, staring up at the sky as the growth slows down.
She regains a semblance of thought as her heart rate lowers. The heat around her nethers still raging like no heat she had ever experienced before. Her hand slowly drifts down her new body and in between her legs before she starts slowly rubbing her vagina through her very tight pants. She lets out a moan as her hair grows longer without her knowing. Her wings fan out, crushing the rest of her house and blocking the road. Good thing no one is out yet to see a giantess basically masturbating in public.
"Wait," Scootaloo quickly snaps out of it before sitting up. "What am I doing?" She says, looking down at her massive breasts and thick thunder thighs. Her face still red as the heat between her legs lingers. "I'm a giant!" She says, looking back at her wings. "Holly crap I'm massive!" She smiles before looking down at her destroyed house. "Don't need that anymore," She says, standing up. She now towers over the building at 30ft tall. "Surprised my pants stayed on," She mumbles, looking at her very tight-fitting pants squeezing her butt and thighs. Her butt and thighs flowing out of her pants like her breasts had done earlier to her crop top.
Her body shivers as her nethers demand attention. "How am I going to quench that? No stallion is even big enough to touch my breast let alone fuck me," She says as she looks around town. Her eyes stopping at the 30-foot-tall main building of Ponyvill with the sun rising behind it. "Bingo," Scootaloo says with a big smile before heading toward it. Her heart pounding against her chest in excitement as her nethers heat up like a furnace. She gently steps over and around buildings on her way to the center building of Ponyvill.
"Hello play toy," Scootaloo says, standing next to the building. The top was only taller than her because of the long radio tower on top of it. Her hips were nearly wider than the building was round. Her breasts could almost wrap around the sides of the building and touch on the other side. "Now time for some fun," Scootaloo says before turning around and pressing her big rump against the building, moving her tail up and out of the way before grinding against the building.
"Fuck ya," Scootaloo moans as her eyes roll up into her head. Her tongue slips out as pleasure rockets up her body once more. Her body shivers as she slowly grinds a bit faster against the building. She pushes her weight against it, causing it to crack a bit from the force. Her goddess-like wings spread out, blocking the sun from some of the houses in town. Ponies start to look out their windows to see Scootaloo grinding against the building. Some are shocked, others take the opportunity to masturbate to her. The idea that ponies were now watching her grind her massive goddess-like rump up against the building just filled the fire in her nethers. "AAhhh!" Scootaloo moans as her pants rip a bit from the rubbing force. Her body was starting to grow again, very slowly at first, but growing. Her butt was almost too much for her pants now. Her breasts grow freely out with nothing stopping them.
She slowly climbs to 35ft, then 40ft, then 45ft, then 50ft. Her butt now grinding against the entire building as it groans in protest. Scootaloo lets out a loud moan right before her body skyrocketing up to 60ft tall. This causes her to stop in surprise as the sudden weight gain to her butt causes her to fall backward onto the building. The building goes right up her butt, causing her to straighten up and her eyes to widen in shock as her face turns bright red. Her pants rip in half and explode onto the ground around her. Her butt jiggles free and splays out onto the ground.
Scootaloo sits there for a few seconds in silence before shifting her butt a bit and letting out the biggest moan of her life. The building was rubbing up against the inside of her butt like the largest dildo in the world. Her tight ass clamping down around the building, causing her heart to spike and her entire body to shiver in pleasure. "Ooohhh fuck that feels good," Scootaloo says, losing herself again to the pleaser.
"Yes, grow, change, fill with lust my little pony," the voice demands in her head. Scotaloo bends over a bit, placing her arms on the ground before fucking the building like a giant horse cock. Her hair begins to change to a light pink as her skin slowly turns a darker orange. Her body keeps growing and expanding up with every thrust of her massive goddess-like hips.
She pounds into the ground with her massive butt, leaving behind a crater of her ever-growing butt. Her wings were so big you would think she was a goddess. Her entire body shakes in pleasure as her butt and breasts continue to grow. Her body slowly looming over the small town as the building she is fucking slowly becomes too small. But before it can become not enough, Scootaloo lets out the loudest moan of pleaser before arching her back and slamming her butt down so hard onto the building that it breaks it and sends a shock wave. Breaking the windows of other houses around her.
Her body jolts in height, quickly growing bigger and bigger, leaving behind a trail of dirt as her body reaches as tall as the cloud. Her breasts pushing out to almost hill-like heights. Her butt alone could count as a small mountain now as it accidentally crushes some houses. Scootaloo sighs as her hair grows longer and slowly reaches down to her hip. Her skin color was now brown, and her mind was no longer in control. The mare now in her body smiles and looks up at Canterlot.
"Time for revenge Celestia," The mare says, slowly standing up. She towers so high over Ponyvill that she looks like a mountain. "This time I've got a stronger and much bigger body," She says before heading toward Canterlot.
