Marin(Dress-Up Darling)

Description: Marin completes her first cosplay since she and Gojo started dating, and she has a great idea of how to celebrate it.

(Gojo/Marin)

Tags: Aged-up characters, costume/sexual roleplay

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Marin took a long look at herself in the mirror, turning this way and that as she admired the results of Gojo's hard work. He'd nailed it again, not that this was any surprise. He'd been doing great work from that first cosplay they'd done together, when he'd made her dreams of becoming Shizuku-tan come true. He had only gotten better from there as they worked together on more costumes, and he picked up new techniques on how to not just design her outfits but transform the shape and look of her face and body to more closely resemble whoever it was she was trying to cosplay as.

He even understood when to follow a character's design to the letter and when to make stylistic changes that would fit the feel of the character better. Gojo really was a genius when it came to putting together a cosplay, and Marin didn't know what she would do without him there to support her and help make her dreams come to fruition.

Gojo's help with her cosplay was hardly the only reason she couldn't imagine her life without him in it, of course. She'd fallen in love with him some time ago, and though it had taken longer than she would have liked for something to come of it, now she had everything she wanted. Now he was more than just her close friend and the one who worked so hard to help her pursue her passion for cosplay. He was her boyfriend now.

Marin smiled as she thought about it, and her reflection smiled back at her. That shift in their relationship was still new enough that she couldn't help but smile every time she even said the word boyfriend in her own head, though honestly she had a feeling this giddiness would ever actually wear off. Gojo was her boyfriend, and it was every bit as amazing as she'd always imagined it would be!

She loved so much about her boyfriend (there came that smile again!), but at this particular moment it was his skill at putting these costumes together that she was most interested in and grateful for. As almost always happened when she first put on a completed costume and she looked at herself in the mirror, she couldn't help but feel like she was inhabiting one of her favorite characters. She wasn't just dressing like Natasha Romanoff; she was the Black Widow, exactly as she had looked in the original Avengers movie.

There were multiple reasons she'd chosen this costume. Natasha Romanoff was a confident, sexy badass, and Scarlett Johansson did an amazing job at bringing the character to life, so of course she was someone that Marin would have interest in cosplaying as. But just as important as that, and in all honestly probably even more important, was watching how Gojo had reacted to the Black Widow while they were watching the movie together.

Usually when they sat down and watched something with a character Marin was interested in cosplaying, Gojo got engrossed in the character's look and personality while looking at her in a clinical sort of way, always thinking about how he could best bring the cosplay to life. But his reaction to the Black Widow had been different. As much as he tried to hide it, Marin could tell that he was turned on by the sexy redheaded assassin turned spy.

Seeing his obvious attraction to the character had given Marin a very fun idea, and now that the costume was finished and she was standing in his bathroom as the Black Widow for the first time, she was preparing to bring it to life. He was waiting out there in his room for her to come out so he could see her in full Black Widow gear, but if he was expecting a mere test run and fashion show, he was in for one heck of a surprise.

It wasn't going to be Marin dressed as Natasha Romanoff who walked into his room. When she walked into her boyfriend's room, she was going to be the Black Widow. And as the Black Widow, she was going to get what she wanted out of him.

--

Back when they'd first started collaborating on cosplay, and especially once she'd figured out that she was developing feelings for him, Marin would have broken into delighted giggles when she saw the way Gojo's eyes widen as she walked into the room. She would have been too thrilled to have the guy she liked staring at her with such open appreciation to even hope to stay in character.

"You look great, Marin!" he exclaimed. He'd started calling her Marin rather than Kitagawa several months before they started dating, at her insistence, though she generally still stuck with calling him Gojo.

That definitely would have made her break before, because she knew he wasn't just talking about how accurate the cosplay was or how much she looked like Scarlett as Natasha circa The Avengers (thanks to him, of course.) He was looking at her body the exact same way he'd looked at Scarlett's when she was on the screen, though he did seem to be consciously trying to mask his attraction much like he had when watching the movie. She didn't know why he was trying to pretend that he didn't find the Black Widow sexy, but she was going to get the truth out of him.

"Gojo," she said, crossing her arms beneath her chest. "Resist as much as you like, but I'm going to get the truth out of you today." She hadn't broken character at all, and here was the proof. This was where the money she'd invested into taking acting lessons was paying off, because while the old Marin hadn't even been able to stay in character long enough to take photos with Sajuna, today she didn't break at all. She wasn't just wearing the skintight black catsuit of Natasha Romanoff and a red wig that fit her perfectly even with her own longer hair tied up carefully so it was out of the way and not visible. She was the Black Widow. She stood with the assertive posture of the spy and set her usually bubbly voice aside in favor of something far more like the deeper, more confident one 'Natasha' used when dealing with someone she needed to crack.

"W-what do you mean?" he asked, looking confused. He didn't seem to have completely caught on just yet, but she would make sure that he understood soon enough.

"Deny it all you want, but I know you have a thing for me," she said. Before he could protest that of course he had a thing for her, seeing as she was his girlfriend and all, she kept speaking so she could further her little game. "You can't fool the Black Widow."

She marched towards his bed, loving the sound of her knee-high boots on the floor as she walked. It made her feel powerful and in complete control of the situation, and that was exactly what she was looking for. Marin Kitagawa was nothing like the Black Widow in reality, but she felt like she exuded the confidence of the female Avenger stalking her prey who sat on the bed, looking like he had no clue what to make of what was going on here.

Gojo actually looked somewhat nervous as she climbed onto his bed and slowly crawled towards him, and if she hadn't worked so hard to hone her acting skills she might have burst into laughter at the look on his face. But Marin kept her composure, made her crawl and gave him a little shove to the chest. She did put more strength behind the push than she normally would have, but she still didn't actually have the Black Widow's strength, plus Gojo was much bigger than she was, so it wasn't like she had the ability to physically overwhelm him in truth.

That didn't stop Gojo from falling flat onto his back though. Whether that was because he was just surprised or he was instinctively bowing to her power play and accepting her dominion over him, Marin wasn't going to waste the opening. She straddled his lap and rested her hands on his chest, where she slowly began to rub him through his shirt. She noticed a little shiver when her fingers brushed against his nipples through the thin fabric, and she allowed herself a little smirk of amusement. That didn't feel like it would be too out of character for the Black Widow to do when she had a target pinned beneath her and under her control.

This wasn't the first time Marin had been on top of Gojo like this; heck, it wasn't even the second or third time. There had been that time in the love hotel, when they'd just been trying to get the perfect angle for photos and had nearly stumbled into crossing the line from friendship to more much sooner than they actually had. And much later, Marin had been on top of him the second time they'd had sex.

She hadn't been playing any kind of role then though. She'd simply been Marin, a girl sleeping with the boy she loved. There hadn't been the sense of power, of dominance and submission, as there was now that she was taking up the role of the Black Widow and pressing him into admitting the truth that they both knew.

Marin liked it. And she had a feeling he did too. "You like being beneath me like this, don't you, Gojo?" she asked knowingly. She slowly began to rock her hips back and forth, rubbing her ass against his groin. "You like having the Black Widow straddling your lap, don't you? I bet you've been thinking about this for weeks now." Even through his pants and her black catsuit, she could feel his dick getting hard as she dry humped him.

She had to rely on her acting training to not allow her excitement to show too much, because if thinking of Gojo as her boyfriend was still enough to excite her, feeling his arousal and anticipating having sex with him was an even bigger thrill. Their relationship was still fairly new and so they had only done it a handful of times, and each time there was the opportunity for more she could barely stand the anticipation. She was sorely tempted to just yank his pants off so she could slide him inside of her right away.

That wouldn't do though. She couldn't abandon her mission. This wasn't Marin fooling around with the boy she loved. Right now she was the Black Widow, and she couldn't give in to her desires until she had gotten what she wanted from him. But that didn't mean that she couldn't have fun of a different sort with her boyfriend and his dick.

She slid down his body until she was on her knees between his legs, and then she reached out and cupped his dick through his pants. "It certainly feels like somebody is excited to have me here with him," she said. She rubbed her hand in circles, and he groaned and closed his eyes.

"You can try and lie to me as much as you want to, but your body is honest," she said quietly. Her hand moved from rubbing him through his pants to unzipping said pants, and the sound of that zipper coming down was quite loud and distinctive in the otherwise quiet room. "It knows what you want, and I'm going to drag the truth out of you no matter how much you try and hide it."

Marin pulled his pants down around his knees, and his underwear with them. His fully aroused cock popped out to greet her, and she very nearly clapped her hands together happily when she saw it. She loved Gojo's dick nearly as much as she loved him. It was nice and wide, and she knew from experience that it fit wonderfully inside of her. She would get to enjoy that perfect fit soon, but not quite yet. There were still games to be played.

"You do have a nice dick, Gojo, I'll give you that," she said, still sticking to her impression of Natasha Romanoff's voice even as she shared her genuine thoughts about her boyfriend's endowment. She licked her hand before wrapping it around his dick, and then she began to slowly stroke it. He groaned louder than before now that her soft hand was touching the bare skin rather than rubbing his dick through his pants and underwear.

"I'll bet you jerked yourself off good after you watched me kick ass in New York, didn't you?" she teased. "You probably closed your eyes and imagined that it was my hand jerking you off instead of your own." She had no clue whether this was actually true. It was entirely possible that whatever left Gojo feeling too embarrassed to admit that he found the Black Widow attractive would also keep him from stroking it while imagining her. "But you don' t need to imagine anymore. My hand feels much better than yours, doesn't it?"

"Yes!" he admitted, groaning and writhing on the bed. "Yes, your hand feels good! It feels good, Marin!"

She could have called him out for not playing along with the game and calling her Marin instead of Natasha, but she decided to take it easy on him and let it slide. They'd never done anything like this before, and it had to be hard for him to think straight when her hand was sliding up and down and stroking his cock like this. She struggled with it a bit herself to be honest, but thanks in no small part to her acting lessons she was able to ignore the lust this handjob was creating in her and focus on maintaining her poise.

Marin really hadn't done this for him much, but it wasn't too complicated. She gripped him hard but not too hard, rubbed her thumb across the head a bit, and gave his balls a teasing rub and tickle sometimes when she got down to the bottom. The most important thing was listening to how he reacted and adjusting accordingly, and Gojo's moans and groans guided her along.

"I bet you really want me to take you into my mouth, don't you?" she said. She brought her face close so her lips were just barely brushing the tip of his cock, and he looked like he was sucking in a breath while he willed her to follow through. Marin could see his desperation as she looked up at him.

"Please," he whispered.

"I'll do it for you," she promised, "but only if you tell me the truth." She gave him a quick kiss on the tip of his cock, and even the lightest pressure on the head for the briefest of moments was enough to make him close his eyes and let out a little whimper. She could tell that she had him now. She was close to making him break, and she was going to press her advantage. "You like me, don't you? When you watched me, you fantasized about me. You tried to play it cool in front of your girlfriend, but you think the Black Widow is hot, don't you?"

"Yes!" Gojo said, admitting the truth now that she had worked so hard and gotten him so desperate for satisfaction. "Yes, I do! But I would never want anyone but--"

"Shh," Marin said, giving his dick a little wiggle with her hand so he would stop speaking. She could tell he had been about to profess that his fantasy didn't mean anything and he didn't want any woman but her in his bed, or something equally silly. Obviously she knew that there was no risk of Gojo ever doing something like that and it wasn't even worth making him say it, but in addition to that, him saying it now would have ruined the game.

"Doesn't it feel good to let the truth out?" she said, raising an eyebrow while staring up at him from between his legs, doing her best to mimic the confident, evaluating expressions she'd seen the character make throughout the movie. "Now sit back and let your crush reward you for being such a nice, honest boy."

Marin had tried sucking Gojo off exactly twice prior to today. The first time had been a bit awkward, honestly. She'd read up on the subject as much as she could prior to doing it, wanting it to feel as good as possible for him, but reading articles and tips and watching videos could not fully prepare her for the real thing, and Gojo's generous size was no help as far as her learning curve was concerned. She hadn't been able to perform any of the hints or use any of the techniques as effectively as they were designed to be used while sucking Gojo's dick for the first time. Luckily he'd still finished quickly regardless of her skill or lack thereof. Apparently just being inside of her mouth for the first time was enough to set him off even if the blowjob itself had been pretty lacking.

The second time had gone better now that she had a better idea of what to expect, and it was the more successful second time that filled her with enough confidence to go for it again while in character as the Black Widow. There was no way that a woman like Natasha Romanoff would give head that was anything short of mind-blowing, so if Marin had tried and failed now it would have shattered the illusion of the confident, seductive and skilled woman that she was trying to maintain.

She knew what she was doing now though. She'd made Gojo cum inside of her mouth twice previously, so she had a fairly good idea of what worked for him and what didn't. All that she needed to do was use what she'd learned, take the same confidence that she'd put into her voice and her 'interrogation' and inject it into her blowjob as well.

Marin didn't think she was being humble in feeling that she did a very good job of it, because the awkward bobbing of her head and the stops and starts that had plagued her the first time she'd sucked his cock were a thing of the past. Her lips slid down his shaft with much greater skill and consistency now, she could take much more of his cock into her mouth without gagging than she had been able to previously and when she pulled back to focus on his sensitive head, her kisses were firmer and her tongue danced and slithered across his tip with grace.

She was sure she still wasn't as good at sucking her man off as the Black Widow actually was, or as she would be if the character were real at least. It was only her third time giving a blowjob, after all. She didn't attempt to swallow him whole and deepthroat him, having no doubt that she would have gagged and struggled and it would have ruined the whole act. She still had much to learn before her oral skills could even be compared to that of a true master.

But the confidence was still there, and even if she was not an expert in truth, it was still the best blowjob Gojo had ever been given by a very wide margin. He couldn't help but groan as if he really was getting head from a woman trained to bring men to their knees.

"Ma--I--I'm close!" he announced suddenly, his hands clenched into fists at his sides. Marin mentally congratulated him for not using her name, but kept her focus on sucking him. The warning was considerate but unnecessary. She kept bobbing her head on his cock, and her eyes were locked onto his face as she drove him over the edge. But they were not her eyes; either her natural brown or the dark pink contacts she usually wore. She was wearing contacts the same shade of green as Scarlett/Natasha's, and Gojo had made clever use of tape to make them take a similar shape as well. This was the closest he would ever come to having his dick sucked by the character he'd seen on screen and been attracted to, and even if just for a moment, she wanted him to see her not as Marin but as Natasha when he hit release.

Gojo let out a noise somewhere between a grunt and a whimper as it all became too much for him, and his hands dropped to rest on top of her red wig while he began to fill her mouth with his cum. The first time this had happened she'd been so surprised that a good half of it had spilled out of her mouth and run down her chin, and the second time she'd swallowed all but a few drops. This time, every last bit of Gojo's semen went straight down her throat. Natasha wouldn't spill anything if she'd decided to swallow it, and neither would Marin while wearing the sexy black catsuit and adopting the confidence of the Black Widow.

"Do you feel properly rewarded now?" she asked him once he'd finished and she'd pulled her mouth back. She smiled up at him while wiping her lips with the back of her hand. Gojo didn't seem capable of speech at the moment, but he did manage to give her a short, dazed nod.

"Good," she said as she scooted her body backwards towards the edge of the bed and stood up. "I'm glad. But I hope you haven't been beaten into submission just yet, because there's still more I'm going to do to you, assuming you're up for it." Her hand went to the zipper of her catsuit, and she saw Gojo's eyes follow the movement of that zipper as she slowly pulled it down and revealed her bare skin beneath the costume. She felt incredibly sexy while cosplaying as the Black Widow, and she'd adored how she looked in the mirror before she came out. She hoped she looked just as sexy while pulling the costume off, and considering the way Gojo looked at her, she had a feeling she would like his answer.

"I'm sure your fantasies didn't stop at me sucking you off," Marin said, still in her lower 'Natasha' voice. She pulled the tight catsuit off of her shoulders and wiggled it down so it bunched around the waist, revealing that she hadn't worn a bra beneath it. Gojo had known that just as he knew every other detail about the cosplay, but he probably hadn't fully appreciated what she would look like topless in 'Black Widow' mode until that very moment. He seemed to enjoy the sight very much.

"Let's see how you handle getting fucked by the Black Widow," she said. Even as the words left her mouth, she loved how unlike herself she sounded. She planned to carry that energy into what would come next once she got her catsuit off too.

--

"You just came, but you're already nice and hard for me again," Marin said, smiling smugly as she rocked her hips back and forth, rubbing her outer pussy lips along the undershaft of Gojo's dick as she moved. "You have it bad for me, don't you?"

"Yes," he mumbled, staring up at her desperately as his large hands held her bare hips. They were both fully naked now, Marin having stripped Gojo bare after she'd removed her catsuit. The only thing that still remained on either of their bodies that wouldn't ordinarily be there was Marin's wig, but even with the rest of her costume carefully set aside, she was still inhabiting the character of the Black Widow as she prepared to take her boyfriend's cock inside of her.

"I need you so much," he continued. Marin wasn't sure if he was speaking to Marin, to Natasha or to a combination of her and the character she was playing, and it didn't matter very much because both her and the character were looking forward to what came next.

"Then have me," she said. She held his dick straight up in the air so she could wiggle her hips around and into the proper position, and then she slowly lowered her body and slid him inside of her. They groaned together as he penetrated her, and their eyes locked.

"Feels good, doesn't it?" she asked. Gojo just nodded and stared up at her, and Marin smirked down at him. "You haven't felt anything yet. Wait until you see how the Black Widow fucks."

If Gojo was expecting her to ride him similarly to how she had the second time they'd had sex, he was woefully unprepared for what was to come now. This wasn't Marin Kitagawa, a young woman who'd had sex all of once and moved her body experimentally as she slowly rocked and wiggled her body on top of her boyfriend. She was going to see this game to its conclusion by riding his cock like she felt Natasha Romanoff would.

The result was sex wholly unlike anything the two of them had shared in the brief time since they'd confessed their love to each other and added physical affection to their already close friendship. Every other time he'd been inside of her, they'd made love. It had been soft and tender, and amazing. This was amazing too, but no one would rightly call it tender.

She didn't rock or wiggle; she planted her hands on his ribs and rode him hard and fast. Marin propelled her body up and down rapidly, bouncing on her man's dick with all of the strength and force that her body was capable of. Her ass smacked down against his thighs every time she drove down onto him, and his length filled her up at a much faster clip than it ever had before.

Marin was used to feeling her lover's large penis slowly, gradually push into her before just as carefully pulling back, and she'd learned to savor every little twitch. But now she discovered that having most if not all of his length slam into her in one big descent was just as enjoyable in its own way. He fit every bit as perfectly inside of her body as he ever had, and that feeling of sudden fullness would have been motivation enough for her to keep her wild pace going even if she hadn't been able to look down and see the amazement and lust on Gojo's beloved face as she rode him like some wild thing. The virgin Marin wouldn't have been able to handle this, and she didn't know how often they were going to go at it like this when she wasn't playing a character as she was now. But as far as this one moment was concerned, Marin-as-Natasha felt the thrill of domination spread through her body as she fucked herself on Gojo's cock as roughly as she could.

The normal sounds of their lovemaking, kisses, sighs, moans and whispered words of appreciation and affection, were replaced by grunts, groans and a lewd slapping of flesh against flesh each time that Marin's body drove down to meet his. She found that she didn't mind the change of pace, and it was obvious that Gojo didn't either. His hands had moved from her hips up to her breasts earlier, their bouncing having enticed him, and he squeezed her breasts and even pinched her nipples between his fingers as she rode him. Those talented hands had brought so much joy to her life in so many ways, but this was a new one.

Gojo's grunts eventually took on a lower, rougher quality, and Marin had been with him enough times by now to recognize what it meant. He would have warned her if she hadn't, but she was going to make what she wanted clear before he could even get the words out.

"Do it, Gojo," she whispered. "Finish inside of me. Let me feel how much you want me."

He managed a single, strangled groan, and then Gojo gave in to her demand and came inside of her. Marin smiled and even let out a little giggle, her control over her character slipping slightly from the combination of having the man she loved creampie her and having her own pleasure crest at the same time. Bouncing on his dick like she had been had been enjoyable enough, and seeing and feeling the pleasure it brought him was wonderfully effective at getting her the rest of the way there.

It was Marin rather than Natasha who moaned in orgasm, because no amount of training could prevent her from feeling this moment of pleasure, love and lust with the man she was still giddy to be able to call her boyfriend.

She felt the smile come back to her face once again as that word ran through her head. Even in the middle of a massive orgasm that washed over her body and made her legs shake, remembering that Gojo was her boyfriend was still enough to break through everything else and make her smile.

--

"The Black Widow is sexy," Gojo said later, as they cuddled together. Her wig was off, and she delighted in having him hold her. "But even if she was real, I'd rather be with you. I love you."

Marin giggled. "I know you would," she said. "And I love you too." She kissed his chest before looking up at him. "But playing pretend for a little while was fun, wasn't it?"

"It was," he admitted, smiling slightly.

"Maybe this could become a new tradition for us," she suggested. "Every time we finish a new cosplay and I try it on for the first time, we could make love while I'm in character."

"That sounds like fun," Gojo said. She propped her head up on her hand to grin down at him.

"Or we'll fuck while I'm in character," she teased. "It all depends on the character, I guess."

The more she talked about it, the more excited she became. It sounded to her like the beginning of an exciting new element to her cosplay passion, and a way to blend it into the new most important thing in her life: her relationship with the man she loved.