Note: I recommend reading slowly and imagining everything thoroughly, as I prefer not to make story drag on or to bluntly repeat same descriptions. Things may seem especially quick in this chapter, as all action basically happens within 5-7 minutes. Also, this is a work of fiction, so it is basically meant to ignite your imagination (and more), so feel free to reimagine it to your liking. Warning: if you're not feeling pervy enough, f-ficks feel less natural to read.
A few years after gaining miraculouses heroes have matured. They moved on to a university (luckily the same, the uni of fashion and business. Gabriel demanded Adrien studied business management instead of becoming a martial arts teacher). As people mature, they gain a requirement of physical stimulation for the sake of mental health - a fact kwamies knew well. While Plagg can just leave Adrien some private time, Marinette needs some more help. Luckily for her, her earrings are a miraculous of creation, which can make anything with its lucky charm.
Her suit fits perfectly to her shape and gives in like a condom while her lucky charm turns into something that satisfies her cravings in the best way, varying its form each time, fitting to any fetish she might have for the night. It tries to use the surrounding objects as well, so Ladybug has learned to find an empty room first not to rely on using a museum stock train like she once awkwardly had to. Tikki was a spirit with understanding and compassion that could always relate and talk to her, as she knew what every ladybug in history liked.
As for Ladybug's relationship with Chat Noir, it matured as well, though he got no closer to dating her. She made it clear she's not interested in him, but it only meant a challenge, a dare, a bet to him that he was determined to win. Chat flirted with her during every fight and it slowly became more pervy, as she did not deny it was obvious every girl likes "fun" and thinks about it, yet she responded to him in a no less flirtatious manner, though only countering all of his attempts to flatter her. She found him cute for how certain he was in his eventual victory, which he noticed every time and liked, as it was proof of how close they were to freely talk like that. If not like lovers, then best friends for certain.
As evening fell on Paris, Ladybug went to her favorite abandoned factory's cargo hold, where she would often enjoy her power. After her lucky charm is activated she only has five minutes before it disappears as she transforms. However, with enough skill a girl can cum in just thirty seconds or even less. A miraculous has the highest skill by definition, giving her pleasure multiple times in a row and letting her rest a bit between each round.
This time her charm had her tied with a rope and pressed down onto a crate by a heavy pillow that felt as if it was man, whom she was happy to imagine as Adrien. Her chest wasn't touching a bare crate, but rather a soft base of her charm. She was in a doggy position with her hands tied up and hanging. Behind her was charm's mechanism, which stimulated both her clitoris and vagina, making a gentle start and an intense finale.
As her charm took form, she realized it had completely tied her and she could not move or stop it as she was in its complete control. It used to make her scared, but now it was the most enjoyable kind of helplessness. She didn't have to do anything now and a massager began seducing her pelvis, starting to vibrate as she was ready. It provided a deep and fast stimulation to her clitoris, making her cum in just a few seconds. She became wet and had a little breather, very soon after which the massager continued again, but not as fast until a thruster has entered her vagina, slowly starting moving back and forth. Both tools synchronized their movements and sped up while giving a thorough massage of her entire palace. Her body tried to involuntarily move, her back arch and her thighs close, but she was unable to, as she was pinned down by a heavy pillow, yet how it restricted her movement was giving her an extra great deal of pleasure. She soo wanted it to be Adrien. Thinking she was alone, she did not hold her moans, which were audible through the entire factory.
But she was not alone. Chat Noir used to stroll across Paris every night, enjoying the freedom. Now he has less time, but lives in his own apartment near university, which partially fulfills his need for freedom. Now he enjoys fresh evening breezy more rarely, but checks out various parts of town out of cat curiosity. This time he wanted to know how the old factories look like and think what it was like to manage one, as if for his major, but mostly just to play with echoes. One building had weird echos... They weren't his. Thanks to his secret video stash and now-deleted browsing history, he figured what it was. His curiosity killed him and he went to stealthily check it out, his eyes sparkling with pervy excitement. Normally he wouldn't do that, but right now he's a cat, and cats like to watch, dammit. It's hard to control your animal nature while you're transformed by a miraculous.
What he has seen shocked him. He found his lady bound and helpless… but by her own lucky charm. It wasn't a work of an akuma or some other villain, but her own. He has found her private hobby, a sacred place she can't do anything about him intruding. He strode right in, feeling victorious over her. "Well, well, who do we have here?" he announced his presence as he walked right in her field of view, barely enough to be seen, but enough for her to be agonized by his grin. She was terrified to be seen by him during such activity, and even more so because she was unable to free herself. In the heat of the moment she forgot that she only had to say "spots off" and hide her face, but instead Chat gained the control. "What are you… Ahh!.. doing here - Ahh!.. Leave!- Ahhh!" she shouted at him through her moans. "No way, my lady. I have seen you do naughty things… looks like you like to be PUNshed, and I'M gonna deliver" He grinned as he went behind her. - "No! Ahhh Don't you DARE!" She shouted and spun her feet as the only thing she could do, but realised she was hopeless and doomed as he grabbed her butt.
Chat felt her butt through and notice how she shivered as she came, heard how short and loud her moans were near the end. He learned how she reacts, gaining extra control. Ladybug heard a zipper go down and couldn't believe this was happening. Her strong partner that she thought she could playfully deny and toy with his flirtations actually gained the power over her, and she brought all of it upon herself. She could have been strict at not letting him be with her, but she turned it into a challenge. She could have had a simple charm to just satisfy her, but she WANTED to be taken. She just didn't expect to be taken by Chat, who red her fetish well. At least it was him, so she didn't hate him for it, but she was mad that he dared to.
Chat's body was excited since the moment he realized what his lady was doing, and he happily inserted himself into her, turning away charm's thruster. Since she was in a suit, he didn't have to worry about protection, and the feeling of conquering her in such a naughty way was an extra boost to his excitement and ego. He went deep into her and ensured her breathing was just as deep, then he went faster and faster, not letting her moans last for just one or two thrusts, making them jagged. It was so magical to be with his lady, to touch her, to please her. She too, was enchanted by his touch, enjoying the fact that she is finally with a real man, who is dear to her nonetheless.
Chat was surprised how quickly she came again and felt through her suit how a current of cum went by his dick as her walls tightened, it was amazing. Soon he went again, bringing her to unimaginable bliss. "Chat, I'm going to transform soon!" Ladybug begged her master to release her, but he wasn't finished yet - "Would you like me to go faster, my lady?" he teased her, taking her to her peak again. She was too sensitive now for her charm's massager to touch her clit, so it was left inactive.
As she relaxed again, Chat continued moving, having complete control over her. She came just as she detransformed, having that moment magically empowered, leaving her body paralyzed with satisfaction for a few seconds, during which Chat pinned her down himself, massaging her back with his powerful arms. Her pants and panties had to appear lowered due to Him being in her, so her legs were tied. Her arms were now free, but she could do nothing with them to escape. Now she is just a girl, while the man behind her has heroic super-strength, still having complete control over her.
She did not know what to say about her detransforming, but he didn't let her decide as he continued just as she relaxed, making it not matter. As a hero or not, she was HIS now. He started slowly, but then gained speed, and with it came the need to lock her in an embrace, so he pulled her up, tying her hands on her chest beneath his arms. She could hear and even feel him breath and moan with her as he rested his chin on her shoulder. He penetrated her so deep and so abusively strong as she came, her whole body just collapsed in sensations, and then he left her palace through her closed tight walls, prolonging the feeling, continuing his last few thrusts between her thighs and touching her clit, forcing her climax to last a good couple of seconds until he came too, covering her pussy in his white cream and ending the sex with a tight and passionate kiss on her neck.
She couldn't believe he took her so far, so hard and that it felt so GOOD to be in his control. Chat laid down with her, ensuring she's in comfort, and they rested for a while. As she restored her breath (And as Tikki finished eating a cookie while watching the porn which she'll be telling the next Ladybug as the most existing one she's seen her hero do in centuries), Marinette sat up and looked at Chat. He saw her sweet face and loved it. *Yep, it's Marinette, no doubt about it* he thought as all his doubt cleared. He respected his lady's desire for keeping identities secret, so he acted as if he didn't know her. "Do you need a lift home, my lady? Name any place, and I'll take you" - "No, thanks, chaton, but you've been a VERY bad kitten today" She answered in contempt that her identity is safe - "I know~" He smiled with contempt, like a cat that was allowed to lick an entire can of sour cream, or catnip at this point, since he was thinking how great it will be now to spend time with her, both as Ladybug and Marinette.
She raised up, said her magic phrase, transforming back into Ladybug again, and left, blushing at his grin, not knowing how to respond to it. He has totally conquered her and pleased himself as he liked, and she was powerless. Ladybug decided to be more careful with using her charm, while Chat swore to himself that he's going to protect Marinette day and night, no matter what would be the trouble.