See end notes for trigger warning and explanation.

Chapter 1

Marinette was going to die. This was how she died, right now, sitting at her desk as the other students left for the day and Alya stroked her hair in parting, whispering, "I'm sorry girl."

Die due to blood loss and embarrassment.

Although she had put on jogging pants this morning, rather than her usual skinny jeans, that only made it worse.

The loose and billowy fabric that she'd worn... commando because she didn't want to feel her underwear was ... tented.

And she had been tenting her pants ever since Adrien walked into class and smiled at her. Just smiled, and, bam! Instant boner.

Was this normal? It couldn't be. How did guys ... survive?

This thing between her legs wouldn't settle and forced her to ... woman-spread (?) all day because the – the - they were heavy and sensitive and so – so hateful and ugly as they dangled between her legs.

She had stared at it for ten minutes last night and – and it had gotten hard and thick and – and big with all of its hideous veins and pinkish-red spongy mushroom head, and peeling back foreskin, and low hanging hairless-

Ugh!

And she was still hard!

Adrien could never love her now, not that he was ever going to notice her when he was surrounded by literal supermodels all the time so she had nothing to offer him physically even before... before...

Before she sprouted a lady-penis thanks to some carelessness on her part while fighting Hawkmoth's latest Akuma: X-Changer.

Totally false advertising because they didn't really change your genitals.

They just rearranged things so that you had both sets.

It... it was kind of crowded down there.

Adrien had to think that she was dis-

"Marinette," came the concerned voice of the blonde-angel whom she knew so well, and her cock twitched at the sound and the scent of his cologne and natural musk that she had detected when she buried her face in his pillow or he sat next to her.

Oh, god...

Now she – she was getting just a little wet too.

It took every ounce of Ladybug courage to raise her head from her desk to stare at her beloved prince who was just too good for her on her best days. His face was a blooming sea of gentle affection as he set down his bag and reached out a tentative hand to take hers, pausing to look into her eyes to see if it was okay.

He still was okay with touching her, even if he could only do it while they were alone in an empty classroom.

He was too good for her alright.

Their fingers brushed, slow and easy, before he slid his hand under hers and took it in his own to guide her to her feet like she'd imagined him doing in, like, some mental fairytale ballroom scene when he was inviting her to dance and she wasn't a clumsy mess and didn't step on his toes.

Also she didn't have a Lady-dick...

"Can I hug you?" he asked slowly, testing her boundaries as he helped her to stand before him.

"You-" she swallowed back the tears. "You don't have to."

His smile was so Adrien. So gentle and warm like the first flames of a sunrise, starting to evaporate the morning dew just as his smile dried her tears.

"I want to, Marinette, if you're comfortable with that." He nodded slowly, hand trailing lightly over her arm in a soothing stroke that left her tingling. "If you think that it would make you feel better."

She nodded back, and suddenly she was in his arms, held with reverent and desperate hands.

"I'm so, so sorry that this happened to you, Marinette, and I promise that whatever happens, all of your friends are going to be here with you to support you." His gorgeous shamrock eyes locked with hers, open and shining with trust and affection while he squeezed her tight. "Whatever you need, you've got it."

Oh, this lovely boy was going to be the death of her; not her... lady-cock. She all but withered in his hold, her legs giving way under the new swell of arousal commingled with heady, joyous relief and adoration. Like the everyday Chat Noir to her everyday Ladybug, as he dubbed her, he was there to catch her when she needed him, supporting her sagging body with a hug.

As he held her to him so that she could sniffle a little bit, eyes misting and little sobs building up in her throat because of the relief, he rubbed circles over her upper back and whispered nonsensical promises and kind words, assuring her that she'd be fine and that everyone cared for her so, so much. She let his surprisingly strong and well-defined arms cradle her, shield her from the world, and for a few moments, it was like she was just a girl being held by the boy she loved and was growing to love even more because he was more perfect than perfect in how he accepted her.

How he didn't hate her and wasn't repulsed by her in his arms.

Problem.

Big problem.

...her – her lady-dick was leaking. Just the tip as she twitched and it twitched while Adrien held her to his shockingly robust chest so that she could nose into his pecs and take in the sweet spice of his Adrien Agreste The Fragrance scent and the odour of his flesh.

An unstable tremor rocked through him as he drew back to stare, wide-eyed, mouth blown open in shock. "Uh, Marinette are- are you?"

"Oh, God, Adrien," she panicked. "I'm so sorry! I didn't mean to- to-"

The weight of his body sagged against her, heavy and comforting, while he squeezed her to him, her- her cock sliding against his thigh in an explosion of ecstasy that had her reeling, pleasure drunk because hot damn that was like nothing she'd ever felt before.

"Marinette," he soothed, cupping the back of her head and stroking through her hair, acting like he didn't mind that she was ... hard for him. "It's okay. It happens to all of us sometimes. You can't control it."

She wanted to believe that as her trembling body gave way to his insistent yet gentle hold and the way that he nuzzled the top of her head with his nose and took in her scent with deep, slow breaths.

Maybe that was true.

Maybe it was true because HOLY SHIT SOMETHING WAS PRESSING INTO HER THIGH!

She jerked back in his arms to stare, the awkward smile on his face never appearing so fetching as it did in that moment while his cheeks burned red.

"See," he offered with a laugh. "Totally natural. It just happens sometimes when you've got an adorable girl or a- a good looking guy in your arms." (NFSW) A frown crossed his face. "I-I hope that wasn't conceited."

"No- not – not conceited at all, Adrien. I-" What were you supposed to say when a guy popped a boner in your arms after feeling your Lady-dick poking him?! "I'm flattered."

Probably not that, but- but she was. Adrien thought she was sexually attractive despite her new body.

"See, this is why, no matter what body you have, you're still you. Just as kind, and brave and generous as you've always been." His lips moved along her scalp for just a moment before he trailed down to kiss her forehead, leaving her a great puddle of stammering blush.

"T-thanks, dadrien- Adrien, not like you're a dad or I want you to be my daddy, even if you could be my daddy if you wanted to – but that's silly because you're not old enough to be my daddy. But what I mean is that I- I have to see my dad because he needs help in the bakery today so I'm cock- knock – not going to be able to stick it in you – I mean stick around with you for very long even though it is really long, and I- I have to go now, kaythanksbye!"

And with that, she tore herself from those warm, sweet arms and hightailed it out of the class, using her school bag to cover the erection that was just about as long as the one she felt swelling up inside Adrien's pants.

Adrien could only stare at the doorway through which Marinette had exited, forlorn and somewhat hopeless. The memory of – of that thick rod of flesh in her pants hot and hard against his thigh...

She just looked so broken because of his failure. If Chat Noir had done his job, she wouldn't be suffering like this, which made every tiny drop of pain that flooded her body entirely his fault – his responsibility.

Or, rather, Chat Noir's responsibility.

If Adrien telling her that she was still beautiful and wonderful and a perfect human being and the best friend that anyone could ask for who smelled like a bakery and home and made everyone laugh with her cute blushes and mousy meeps wasn't enough...

Well, then, Chat Noir would have to pick up the slack and protect that precious girl.

Marinette had to get back to being the bubbly and wonderful girl he lo-liked!

Until he and his Lady dealt with that Akuma, Chat Noir would make sure of it.

Chat Noir would help her to get comfortable with her beautiful body, just the way it was.

Notes:

As is obvious from the first chapter, this story features an akuma that has caused women across Paris to become possessed, bluntly, of both a penis and vagina simultaneously.

While the presentation of this occurrence is lighthearted, there are also body-positive and, some readers may find, trans-positive themes. I hope the work will be humorous in its outlandish situation but not disrespectful.