Blake's squirming amounted to an unnoticeable little buzz. Ruby quickly smothered it out as she ran a dainty finger over her wide curve, and the hapless boy that had been introduced. He felt himself pushed back into a mass of muscular tissue: toned from multiple cheer sessions, so they had no trouble kneading him around between them. Everything was dark; everywhere he tried to move, he only ran into a mass of wet, tough cells.
Panting in panic, the newly-digested boy screamed again: "Ruby, please! I'm down here!"
Nothing. Everything was drowned out by reddish-black. All sound was drowned out by the groans as the mage's new home stretched and flexed. He could hear something not unlike rushing water, following steady pulses in intensity. Her bloodstream, he guessed. It came from above - no, from below... His left... He couldn't even tell. His sense of direction dissolved into the immense bleakness. Did he even have eyes to see with, a mouth to scream with? If he reached out, would he see a hand in front of him... Or had that been lost in the digestive process, clutching desperately for safety from the churning stomach acids? Could he even qualify as human anymore?
"I should toss out that treat bag, seriously." Even more jaw-dropping and spirit-shaking than the noises of digestion or a pounding heart, the familiar voice boomed out. It had more presence than a judge's grovel, more certainty than a unanimous jury, more power than an executioner's weapon falling, and a bright, girlish little chirp. "Or is this just a sign I need to exercise more? I mean, my ancestors didn't survive on iceberg lettuce and granola!... At least, not my ancestors from the way back before times."
Adding to his existential horror - this prison he'd been sentenced to constituted his friend's backside. The same one that swung so much during games, or even swayed when she walked down the hall. This'd be bad enough if the blonde had ever drawn attention to it, but no; her humility and modest nature kept it hidden under the red cloak of her cheer uniform. He was totally unnoticeable, less than an insect, a lint bit, or a piece of dust. Blake's body had been accepted into Ruby's, and was restructured for the sole purpose of powering her thundering, energetic exercises.
He groaned at his luck, not sure what to do. He'd now be indistinguishable from any other inch of her rear. The pull from her cotton panties pressed against him, holding him firmly in place.
Almost at the same time, she sighed, rumbling all the other fat cells surrounding him. "If only I could cast a spell to get it all out..." Her hand descended from the plump cheek, letting it fall.
That's it! Blake began chanting: "Crossing past reality's knotted lines, bridge this pair of souls, bridge voices, bridge minds!"
With that, he felt a painful electricity shoot through where his spine would be. He gasped for a second, taking a few moments to get used to the sensation of brains connecting. Telepathy magic wasn't a skill he used often. If a classmate heard his voice in their head, that would be the end of his secret mage life. But secrecy was worth very little to a piece of ass fat desperate to leave.
If he focused, he could see a blurry image of the blonde cheer captain; reflected in a clean mirror. Nearly naked, this woman hid nothing before herself, carefully looking over the growth of her curves, the definition of her abs, and the shape of her legs - one of which she jokingly kicked in the air. He could feel everything shaking with that sudden jolt, pushed back and forth by fatty tissues. Annoyed at the shape of her rear, Ruby backhanded a cheek, trying to force it into place. The shaking was like an earthquake, making his heart pound at lightning speed - and almost cutting his concentration enough to sever the telepathic link.
"Ruby!" He shouted - or rather, thought as loud as possible.
"Huh, yeah, it's rounder for sure. But self-care is important..." She blinked, and looked behind her. The miniature mage's field of cloudy vision twisted with her head. He realized he was looking through Ruby's eyes. An effect of his spell? A sign that he was merging more with her, losing his identity in the mounds? It twisted back, looking sideways. "That sounded like..."
"It's me! It's Blake!" Casting aside his fear and dread, he focused deeper on her thoughts, trying to squeeze his way in the confusing mess.
"Blake? Where the heck is your voice coming from, Blake?" It was hard to tell if she spoke this out loud, or was thinking it. Everything a few feet beyond her was like a soundless, endless void at the edge of the universe.
But finally, he'd gotten into her head! He wobbled more, trying every method at his disposal to maintain her notice. "Down here! I'm fat on your backside! Help me off!"
She paused for a moment, eyes widening. It would be a huge shock to Ruby, for sure; but the boy was sure she'd understand.
"Oooh, so this is what my guilty conscience sounds like." The young woman nodded her neck, shutting her eyes in thought - and closing her friend into the oppressive darkness again. "A voice telling me my butt is fat. And it's got the same sound as a guy I know, because..." - In that terrifying breath, he felt the world shudder in anticipation - "Well, because of Sigmund Freud." Her hand now ran over her underpants, snapping them into place - sending a tickling shiver across Blake's body, or lack thereof.
The mage protested, but he was already feeling lost, burnt out amid the other bits of energy broken down by her diligent enzymes. When she opened her eyes, his sight blurred with the reddish darkness, painting Ruby's reflection in a pulsating pink glow. "No! Don't do it! You could kill me!"
She laughed. "Yup, my body will be real killer after this!"
Every time she walked, it was like a landslide of muscle and fat for the still-trapped Blake. He could feel every joint in her legs stretch out, sense the floor's temperature traveling up her nerves, and the fluffy texture from her underwear vaguely tickled him. Moving slowly into his field of vision was a simple, but comfy, red chair. She turned, and sat on it.
"Oof!" Compressed against the seat, he groaned, trying to push back with anything he had left against the pressure around him.
Ruby's mighty glutes flexed. She used them to jump up from the seat. It stretched everything inside her butt, like a medieval torture rack for magicians. He felt himself flying through the air for a moment, before -
SLAM
She squatted back on, pushing him into more of the all-engulfing backside once more. A chair squat jump. Something simple to keep her back in shape. As if he weren't already close enough to the cheerleader - having seen her half-naked, being currently trapped amid the energy stored in her rear - he was now involved with her exercise routine up-close and personal, pulled with her.
SLAM
The tremor-like energy in the playful girl's rear snapped him out of his terror, to some degree. He hadn't even noticed until the painful squeezing pressed against him again. And once more, he took flight, her backside wobbling a little from the sudden pressure. It pushed everything back and forth. The impact of her soles against the ground came next, destabilizing him. While he was off-guard, she completed the next twist of her legs, harshly slamming him into the chair once more.
Despite the terror around him, the idea that he could be trapped forever as fluff inside a girl's butt... Something about her motion moved something in him. It was far from acceptance, or a sense of comfort; the motion of the muscular orbs around him was still awkward and compressing. And it wasn't arousal, per se - his mind still kept Aria at the top. No, this was a sense of inspiration, an admiration of her devotion. A sense that he should try harder for himself, and muscle past the pain.
This was the power... Of a cheerleader.
He thought about all the times they'd spent together, every word they'd shared, everything that made her unique, each glittering fragment of time that defined their link. With this, he shouted, shaking: "RUBY! PLEASE, STOP! I NEED YOUR HELP!"
And like that, just as he braced for the oncoming SLAM, she halted.
"This... This doesn't sound a lot like a voice of reasoning and conscience. Is that..." She gulped. "Blake? Is that really you?"
He shook for a moment, pausing, as if he expected a cruel twist of fate, or trick from the ghosts. "Y...yes. I... I hope I'm still Blake. You swallowed gum with me on it, and when I digested, I became part of your butt..."
He couldn't see her facial expression from the first-person view; but she seemed to be looking behind her, trying to glimpse her cheeks. She stroked a hand across it, wiggling the ensnared young man again. "Man, my body picked a REALLY awkward spot for you. What were you doing so small?"
"I'm... There were these ghosts, and I had them cast a spell to impress Aria. Shrinking was a side-effect. I-I think it's thanks to that I could survive your workout..."
She groaned. "That leaves a lot of gaps. Like, what were you doing with ghosts?"
He pushed aside something wet in his face. "Please, I can - I can explain this all when I'm out. Just help me!"
Ruby said: