Poison Bloom: A My Bimbo Academia Side Story

Stage 1: The Wallflower

Mizuki Kamiya had always been invisible. Not literally invisible like that UA girl, but socially invisible. At 19, she was a freshman at a mediocre community college, studying botany – the only thing that gave her any joy in life. Her quirk, "Plant Whisper," let her communicate with plants on a rudimentary level. She could feel their needs and sometimes encourage growth, but it was considered practically useless in a world of flashy heroic abilities.

"Kamiya-san, could you please read the next paragraph?" Her professor's voice cut through her daydream.

Mizuki felt twenty pairs of eyes turn toward her, causing her round face to flush a deep crimson. She stood awkwardly, her oversized sweater hanging off her chubby frame, hiding the rolls she was so ashamed of. Her thick glasses slid down her greasy nose as she fumbled with the textbook, dropping it with a loud thud.

Snickers rippled through the classroom.

"S-sorry," she mumbled, bending to retrieve the book, her limp, greasy brown hair falling forward to hide her acne-scarred face.

This was Mizuki's existence – stumbling through life, mostly ignored, occasionally mocked. Her only sanctuary was the small community garden where she volunteered, speaking softly to the plants that never judged her appearance or awkwardness.

That evening, as she tended to her beloved ferns in the greenhouse, she noticed a strange commotion outside. A crowd had gathered around what appeared to be a street performance. Curiosity, something Mizuki rarely indulged, drew her closer.

A blonde woman in a tight latex outfit was dancing provocatively on a makeshift stage, pink hearts occasionally materializing above her head. Men and women alike watched, transfixed. Mizuki lingered at the back of the crowd, mesmerized despite herself.

"Don't be shy, honey! Everyone deserves a little... release," the performer called out, spotting Mizuki lurking in the shadows. "Come closer!"

Before Mizuki could retreat, the crowd parted, and suddenly she found herself pushed to the front. The blonde woman – who Mizuki would later learn was the villain D-Stress – winked at her and blew a kiss. A small pink heart floated from her lips and landed directly on Mizuki's cheek, dissolving into her skin.

It felt warm, then hot, then... nothing. Mizuki fled, her heart pounding, convinced she'd just been targeted by some villain's quirk.

That night, she fell into a fitful sleep, her body burning with fever.

Stage 2: First Bloom

Mizuki awoke feeling... different. Her usual morning headache was absent, and her skin felt strangely sensitive against her bedsheets. She shuffled to the bathroom, avoiding the mirror as always, and stepped into the shower.

As water cascaded over her body, she noticed something odd – her hands seemed more slender, her fingers longer. Confused, she finally faced the mirror as she dried off.

"What the..." she gasped.

Her acne had diminished overnight. Her face, while still round, seemed to have lost some of its puffiness. And her normally dull brown hair now had the faintest hint of red at the tips.

Most shocking, though, was the subtle change in her figure. Her waist appeared slightly more defined, her breasts a bit fuller.

"This can't be real," she whispered, touching her face in disbelief.

At college that day, no one seemed to notice the changes – they were too subtle for anyone who barely looked at her anyway. But Mizuki felt different. When her professor asked a question about plant reproduction, she found herself raising her hand without the usual paralyzing anxiety.

"Plants have evolved numerous sexual strategies," she explained, her voice clearer than usual. "Some quite... inventive."

A boy in the front row actually turned to look at her, his eyebrows raised in surprise.

That afternoon at the greenhouse, Mizuki discovered another change. As she spoke to her plants, they didn't just respond with subtle movements as before – they visibly swayed toward her, growing inches before her eyes.

"What's happening to me?" she whispered, watching as a withered orchid suddenly bloomed under her touch, its petals unfurling in an almost obscene display.

That night, her dreams were filled with strange, erotic images of plants and flowers, of pollen and nectar, of penetration and growth. She woke up sweating, her body tingling with unfamiliar desires.

Stage 3: Budding Seductress

Three days later, Mizuki could no longer deny the transformation. Her formerly shapeless body had developed curves that even her baggy clothes couldn't completely hide. Her breasts strained against her bra, having grown at least two cup sizes. Her waist had narrowed dramatically, while her hips and buttocks had expanded to create an hourglass figure she'd only dreamed of.

Her hair, now decidedly auburn with streaks of crimson, had developed a natural shine and volume. The acne was completely gone, leaving clear, porcelain skin. She'd discarded her glasses, finding her vision mysteriously perfect.

Most alarming was the change in her quirk. When she visited the community garden, plants didn't just grow – they exploded into bloom, vines reaching out to caress her skin as if sentient. She discovered she could control them now, directing their growth with mere thoughts.

But it was the change in her personality that truly shocked her. The old Mizuki would have hidden these changes, terrified of attention. The new Mizuki found herself buying a form-fitting dress and applying lipstick she'd secretly purchased months ago but never had the courage to wear.

"You look... different," her mother commented that morning, clearly unsettled.

"Do I?" Mizuki replied with a small smile that felt foreign on her lips. "I hadn't noticed."

At college, heads turned as she walked down the hallway. The confidence that filled her was intoxicating, addictive. When the boy who had noticed her days ago dropped his pencil as she passed, she didn't blush and hurry away. Instead, she bent slowly to retrieve it, fully aware of how her dress hugged her new curves.

"Here you go," she said, her voice a purr she didn't recognize. "Be more careful next time."

His face flushed as he stammered thanks.

In botany class, she contradicted the professor when he made a minor error about floral reproductive systems.

"Actually," she said, her voice carrying clearly across the room, "the female organs of that species are particularly... receptive during certain phases of the moon. It's quite fascinating how they... open up."

The professor blinked in surprise, not just at the correction but at the suggestive way she described plant reproduction.

That night, examining her increasingly voluptuous body in the mirror, Mizuki felt a strange new emotion taking root – not just confidence, but power. She ran her hands over her new curves, marveling at the sensitivity of her skin, the fullness of her breasts, the perfect roundness of her buttocks.

"This is just the beginning," she whispered to her reflection, her eyes flashing with a predatory gleam that would have terrified the old Mizuki.

Stage 4: Toxic Bloom

A week after her encounter with D-Stress, the transformation was complete. Mizuki stood before her full-length mirror, barely recognizing the bombshell reflected back at her.

Her hair, once limp and brown, was now a dramatic black with vivid crimson streaks, cut into a messy, shoulder-length style that screamed sex and danger. Her eyes, formerly a dull brown, now gleamed a vibrant emerald green, framed by thick lashes and smoky eyeshadow that gave her a perpetual bedroom gaze.

Her lips had plumped to a perfect pout, painted blood red with a shimmering gloss that made them look wet and inviting. Her skin glowed with unnatural perfection, a hint of verdant undertone giving her an exotic appearance.

Her body had completely transformed. Her breasts had swelled to an impossibly large size, yet remained perfectly perky, straining against the tight crop top she'd purchased yesterday. Her waist had narrowed to a tiny circumference that seemed physically impossible, while her hips and ass had expanded to dramatic proportions, creating a figure that defied anatomy.

Gone were all her old clothes. Today she wore a deep green crop top that barely contained her massive breasts, leaving the undersides exposed. A black micro-miniskirt rode low on her hips, exposing her midriff and barely covering her ass. Fishnet stockings led down to six-inch platform heels that made her legs look a mile long.

But the physical changes paled in comparison to the mental transformation. The shy, awkward Mizuki was gone, replaced by a creature of pure sexual confidence and malicious intent. She didn't just feel beautiful – she felt powerful, superior, entitled to whatever and whoever she wanted.

Her quirk had evolved into something she now called "Toxic Bloom." No longer did she simply communicate with plants; now they were extensions of her will. More importantly, her body produced powerful plant-based pheromones that could intoxicate anyone who got close enough – and if she kissed them, they fell completely under her control.

"Time to play," she purred to her reflection, blowing a kiss that left a perfect lipstick mark on the mirror.

When she strutted into the botany department that day, the hallway fell silent. Students and professors alike stared openly, men adjusting their suddenly tight pants, women glaring with a mixture of envy and unwilling attraction.

Her professor nearly swallowed his tongue when she walked in late, deliberately choosing a front-row seat.

"Sorry I'm late, professor," she said in a husky voice that carried throughout the room. "I was... occupied with some private experimentation."

She crossed her legs slowly, knowing her skirt rode up to reveal the lacy edge of her thong.

"That's... that's fine, Miss Kamiya," he stammered, losing his train of thought.

"Please," she said, leaning forward to expose more of her cleavage, "call me Mizuki."

Throughout the lecture, she asked provocative questions about plant reproduction, describing pollination in terms so explicitly sexual that several students shifted uncomfortably in their seats. The professor's face remained flushed as he struggled to maintain professional composure.

After class, the boy who had been watching her for days – Takashi, a reasonably attractive student with a minor strength enhancement quirk – finally worked up the courage to approach her.

"Kamiya-san, I was wondering if maybe you'd like to get coffee sometime?" he asked, his voice cracking slightly.

Mizuki looked him up and down, a cruel smile playing on her full lips. "Awww, how adorable," she cooed condescendingly. "The little boy thinks he's man enough for me."

His face fell, but she wasn't finished with him.

"Tell me, Takashi-kun," she purred, stepping closer, invading his personal space. "Have you ever been with a real woman? Or do you just fantasize about it while you touch yourself alone at night?"

His face went crimson. "I... I didn't mean to offend—"

"Shhh," she pressed a finger to his lips. "You didn't offend me. You amused me. There's a difference."

She leaned in, her massive breasts pressing against his chest, her lips inches from his ear. "Maybe I'll let you worship me properly someday. If you beg nicely enough."

The pheromones emanating from her skin were already affecting him, his pupils dilating, his breathing becoming shallow.

"Would you like that?" she whispered. "To be my little pet? To serve my every whim?"

He nodded helplessly, already entranced.

"Meet me in the greenhouse. After dark. Come alone."

That night, the community greenhouse glowed with an eerie light. Plants had overrun the space, vines and flowers growing to unnatural sizes, creating a jungle-like environment. In the center, Mizuki reclined on a throne made of intertwined vines and giant flowers, her legs spread provocatively.

Takashi entered, looking dazed and eager.

"You came," she observed, not bothering to sit up. "Of course you did. You couldn't help yourself, could you?"

"No," he admitted, drawn forward as if by an invisible string. "I couldn't think about anything else all day."

"That's because you're weak," she said with a cruel smile. "And I am magnificent."

She finally stood, circling him like a predator. Plants seemed to respond to her movements, vines caressing her curves as she passed.

"Do you want to taste me, Takashi-kun?" she asked, running a finger along his jawline.

He nodded eagerly.

"Ah, ah, ah," she chided. "Use your words, pet."

"Yes," he gasped. "Please, Mizuki-sama."

"Good boy," she purred, then pressed her full, red lips against his.

The kiss was deep and passionate, but as Takashi melted into it, his eyes shot open in alarm. A strange sensation spread from his lips throughout his body – a tingling that quickly turned to numbness. Green veins briefly appeared on his skin, then disappeared.

When she finally pulled away, his eyes had a vacant, adoring look.

"How do you feel?" she asked, already knowing the answer.

"I live to serve you," he replied robotically.

"Perfect," she laughed, the sound both musical and menacing. "Now, let's discuss how you can be useful to me. I think it's time this city learned to bow before its new queen. And you, my pet, will help gather more subjects for my kingdom."

She ran her hands through his hair, then roughly yanked his head back. "Ohhh, we're going to have such fun together. All those heroes with their flashy quirks... they have no idea what's coming for them."

"Yes, Mizuki-sama," he agreed, his will completely subsumed by hers.

As she laughed again, plants throughout the greenhouse bloomed in response, their flowers opening in an accelerated, almost sexual display of fertility and power. The pheromones in the air thickened, creating a heady, intoxicating atmosphere.

"The meek little plant girl is gone," she announced to her captive audience of one. "From now on, this city belongs to its Poison Queen."