Full Summary: After Marinette unknowingly reveals her pregnancy when she asks Chat Noir for help in telling her boyfriend Adrien, an akuma that can speed time catches Ladybug with a hit with his broken weapon. Her pregnancy suddenly accelerating, she leaves the fight and a confused Chat behind to hand over her earrings quickly.
In the original Sinfonia, when Chat doubles back to find Ladybug for additional team members to help with the fight, he stumbles upon Marinette struggling through a sudden pregnancy hormone dump, and she's able to hold herself back and send him back to the fight.
In this alternate ending to Sinfonia Con Amore-Prestissimo, she's not so successful.
Alt summary: Marinette fucks Chat Noir in an alley.
A/N: Just a heads up warning, this is definitely a spicier turn of events in this version, so if that's not your thing, stick with the original! Check out Sinfonia Con Amore - Prestissimo on my profile to get the full background on how we got to this point.
As Marinette walked, she pulled out her phone to check her messages.
Nothing from Adrien. She'd texted him well before the fight to see what his plans were after work, back when she was still wanting to surprise him with her pregnancy.
Well, this would sure surprise him now.
She dialed his number, knowing that he usually had his phone, even while working. While she waited and walked slowly, hand placed lightly on her slowly-growing baby bump, she amused herself with what she might say. " Oh, hey Adrien, can you come meet me? Surprise, not only did I find out this morning that I was pregnant with your child, but I got caught up by an akuma and now I look four months pregnant, oh and said baby might also be born before Chat and Ladybug can finish the fight and reverse it."
She felt slightly hysterical at the thought.
Hey, it's Adrien, leave a message at the beep!
Marinette's good humor turned briefly to irritation, especially after a second call attempt to Adrien ended similarly.
She found she could only be angry with her boyfriend for so long, however. Her mind completely focused in on thoughts of Adrien, and suddenly, she felt a rush of desire heat her skin as it flowed through her body. She stumbled, catching herself on the wall of the alley with her hand as she tried to make sense of the sudden overwhelming feeling.
Where the heck was this coming from? An overload of pregnancy hormones?
She let out a low keen, leaning her head against the wall and shifting her legs as she fought to suppress the sudden desire for friction. Where was Adrien when she needed him?
Someone ran up to her, a gust of wind accompanying them. Something about the scent threatened the control she had over the piece of her that desperately wanted , and she looked up, somehow expecting to see Adrien.
The wrong blond stood in front of her, looking angry. "Marinette, what are you doing here? You were supposed to stay home." Chat Noir stood along the wall, his eyes darting past her down the alley as though he were looking for something.
She bit back her moan. "Damn it, I thought you were Adrien."
Chat hesitated, his eyes going wide as he took in her posture. He instinctively took a step closer to her before freezing in confusion. The movement intensified his scent, and Marinette found herself standing straight and taking a step closer of her own, angling to put Chat between her and the wall. Her shoulders and chest rose and fell rapidly as her breathing grew heavier.
God, why was his scent setting her off in all the deliciously wrong ways ? And why did she suddenly not seem to care that he was off-limits?
"Why do you smell so good?"
Bewilderment appeared on his face. "What?" His breathing hitched when she stepped nearer.
"Why–" she growled, stalking forward until she had Chat between her and the wall, "–do you smell–" her arms went up to the bricks, caging him in, "–like him."
Chat Noir's eyes were wide, pupils dilated as he stared down at her from where he had pressed himself back against the wall. "I–"
Marinette surged forward, capturing his mouth with hers. He let out a groan against her mouth, the rest of his body held back as though fighting to keep from touching her. His mouth moved against her own for several seconds before he broke away. "Marinette, we can't–" he cut off with a strained noise as she moved even closer, her mouth at his neck above the collar of his suit and her hands on his chest. She could think of nothing but the need to feel his skin and her overwhelming desire for him to touch her.
And then he inhaled sharply, his hands snapping to her shoulders as he shifted her slightly to the side, looking down.
She hadn't noticed her mirage had disappeared, her now-visible baby bump pressed against him.
"What?" He breathed, confusion and desire warring in his expression. She took the opportunity of his distraction to kiss him again, and he responded once more, his hand falling from her shoulder to hover over her stomach. He seemed to gain control, pulling away yet again. His fingers brushed against the bump. "You…got hit?" She didn't answer as she fought with herself. The heat beneath her skin fueled her, begging for more. "No…wait," he said, eyes widening as his other hand moved from her shoulder and across her collarbone, landing on her miraculous around her neck. "...You're Lady–"
She crashed her lips into his, the touch having pushed her over. He made a strangled noise against her mouth, his hand sliding back to hold her shoulder. He didn't push her away, however, his other hand firm on her stomach as he kissed her back, dazed. Marinette could feel him harden beneath his suit, the bulge pressing against the bottom of her rounded stomach.
This time, she was the one to let go, dropping down to press herself more fully against him. He was breathing hard, his eyes closed.
"I want you so badly, I can't stand it." Her words came out in a moan, her head now leaning forward on his chest. Her stomach stopped her from getting as close as she wanted, and she yearned to feel something between her legs. "I can't have you. It's not… fair. " From the recesses of her mind, the solution presented itself. She snapped her head back up, taking in the wild look in his eyes. " Tell me," she demanded, gripping his suit with one hand. "You're him, aren't you?" She could see the conflict swirl amongst the heat in his expression. "Please, tell me you're him?" she pleaded. She didn't know if she could forgive herself if he wasn't.
He struggled to hold himself back, his breaths ragged and his eyes roving all over her. Until finally, with an air of surrender, he breathed, "I'm him. It's me."
Relief hit her, the hunger roaring back to life with vigor. This time when she went to him, he met her fully, his hands gripping her tightly as he kissed her deeply, thoroughly. She thought she'd get lost there, if it weren't for her need pounding through her, pulsing like a heartbeat. She needed more of him. She tore her mouth away, going to his neck only to be thwarted by his suit. "Prove it," she ordered.
It took him a second to understand, and then he released his transformation.
Adrien stood in front of her, looking seconds away from devouring her.
Not fast enough.
She went for his neck, finding the sensitive arch where his neck met his shoulder, and she sucked, hard, before using her teeth.
"I need you, Adrien. Now."
He nearly lost his footing, his knees buckling. "Marinette," his voice came out in a deep groan. "There's… no time. We shouldn't– I have to–"
"Make time," she growled, pulling his shirt off.
He let her, his hands returning to her body. His mouth went to her shoulder, her neck, her ear, leaving burning heat behind. "We're in an alley, Mari." His whisper caused a tremor to go through her. "There's no where–"
"I don't care. I'm going to combust if you don't get inside me right now."
He let out a deep noise, twisting her around until he had her back pressed against the wall instead. He angled his knee between her legs, and suddenly, she had something to move against. She moaned, loudly, grinding herself on his leg. He bit back another noise. "You're killing me, Marinette. God, I want you, but how are we supposed to– you're pregnant, like, really pregnant. I'm not going to put you on the ground."
She snatched his hand, pressing it against her stomach as she glared at him. "This is your doing. You put this baby inside me, and now I feel like I'm burning up. You're going to make it up to me by letting me fuck you in this alley, got it?"
His entire body trembled as his eyes remained fixed on where she was holding his hand to her belly.
She grinned, triumphant. "Take me from behind."
Groaning, he twisted his hand to take hers. "Fuck, Marinette, alright, you win." He turned and led them to the other side, where a large dumpster shielded them mostly from view. He released her, his hands flying to the button on his jeans. "You need to take off your suit."
She released her transformation and sucked in a breath, forgetting again about her regular, pre-pregnancy clothes underneath. Her formerly-loose shirt stretched to accommodate, as it had before, but her jeans felt painful, and she struggled to undo the button. She growled in frustration.
Damn clothing, getting in the way.
Adrien came to her rescue, and she was able to shimmy her way out with his help. When she was free, Adrien looked dazed again as he took in her figure. "God, Marinette, you look… you look–" His tone and expression as his eyes moved over her, catching on her rounded midsection sent a rush through her, and she tugged his hand to her core, showing him just how ready she was. He cursed again, touching himself over his boxers as he slipped one finger, then two inside her.
Marinette made a noise, but she needed more. "Not enough. You. Now."
Adrien let out a low groan, finally getting the memo as he removed his last bit of clothing and turned Marinette around by her shoulders to press her against the wall. She placed her hands on the bricks, angling herself, and with a shove to the side of her panties, he was finally, finally, inside her.
"Gods, yes, Adrien!" She cried out as he filled her, providing the friction she'd been so desperate for. His breathing was harsh as he started slow. He ramped up the speed until he pounded into her, both hands on her hips, fingers splayed across the bottom of her bump below the hem of her shirt.
"Marinette, fuck, I'm not gonna last long."
She'd already been on the edge after the build up; his words were all she needed to fly over it, waves of pleasure hitting her one after the other.
With a final stuttering thrust and a cry of his own, Adrien emptied himself into her, still gripping her tightly.
Their uneven breathing became the only sounds in the alley as they stood, unmoving.
Adrien leaned forward to rest his head on her shoulder. "I– I can't believe we just did that."
Finally emerging from the cloud of lust that she had been captive in, Marinette let out a breathy laugh. Then, her attention shifted and she suddenly felt something different. Gasping, she put her weight on one hand so she could reach and grab Adrien's hand with her other, tugging it forward to rest on her stomach.
Little nudges pressed against their hands, bumping her from within. She had been too distracted to notice them before, but now she was unable to move, marveling at the movement and additional confirmation that there was indeed a baby in there.
Adrien was apparently mesmerized as well. "That's…amazing," he breathed, stunned. They both stood still, taking it in until the kicks eventually stopped. Adrien's hand rested there for a few more seconds before he let it fall away. "I… I need to go back." She could hear the reluctance in his voice. Then he moved back, glancing around. He hadn't removed himself from her yet. "Uh…"
She twisted her head, realizing their predicament. Spying her jeans, she let out a huff. "There's no way I'm fitting in those again. Might as well use 'em."
He stretched to grab them. "Sorry, Mari."
She sighed. "It's my fault, it's fine."
Humor bled through his response, "Thought I was to blame."
"...Stupid hormones."
After a quick cleanup, Marinette transformed while Adrien redressed. When he finished, he looked over at her, his eyes snagging on her bump once again. He looked startled. "You…I think you've gotten bigger."
She shot him a wry smile. "What every woman wants to hear."
He flushed, realizing what he said. "Sorry, I meant…" He shook his head, refocusing. "I have to go back, I need to fix this. I actually came to find Ladybug, to get more help from the miracle box."
She understood now, and conjured up the box through the magic. She reached in and pulled out the snake miraculous. "Can you find someone for this? We could use the extra time."
He nodded, zipping it away in his suit. "Tell me where you're heading, I'll take you there. Home?"
She thought about protesting, but she knew Adrien would shut her down. Plus, she didn't care to keep walking anyway. "Not sure how much time I have, best take me to the hospital."
A flash of panic crossed his expression, and he scooped her up immediately and took off.
In between jumps, he asked her questions to ask her about her state. "Please tell me you're not in pain."
She took stock of herself. The feeling of their baby growing within her was a very odd one, and hard to describe, but after her cramping from earlier, she wouldn't call it pain. "Not in pain," she confirmed. "Merely strange. And tired."
Her words hadn't seemed to assuage Chat's worries, and when he landed near the hospital, he took her around a corner, away from view.
When she got to her feet and met his eyes, his jaw was clenched, eyes conflicted.
She was about to shoo him on his way when he said, "Let me have the rooster miraculous, as well." She gave him a questioning look, but retrieved the miraculous, trusting him. He took the ring. "I'm coming right back."
"After the fight."
He shook his head. "No, I'm going to hand over my ring when I do the others. I'm not going to leave you here alone."
Exasperation filled her tone. "I'll be fine, Adrien. You're needed-"
"Here. With you. In case anything happens."
"That might not be a good–"
"If you're going through it, I'm going through it here with you. The fight will go more smoothly with more team members and me not distracted."
Marinette sighed, not wanting to waste any more time. It also brought her some comfort to know he was coming back. "Alright, go."
He leaned forward to kiss her, holding her tightly for a second before he turned, taking off.
A/N: ...this will have another chapter because these two can't stop getting into trouble. Stay tuned and shoot me a comment if you liked!