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to keep your soul with mine (i’d do anything)

Summary:

“Dare, of course!” Lumine was always bored when people picked truth. The dares were much more interesting by far.

“Girlie, we ought to ease everyone into the mood, you know?” Ajax chided jokingly as he ran his hand along her side.

“Fine,” Lumine huffed, “but the truth better be good then! Who wants to ask me a truth?”

Scaramouche raised his hand, an evil smirk on his face. “So, the truth…”

alternatively - After a naughty truth is revealed, Ajax and Lumine follow through.

Notes:

Howdy howdy hey, we’re back at it again at KRISPY KREME! Hahaha, in all seriousness, SSammers and I thought of how fun it would be for Chilumi to have some sexy time on vacation. There’s some plot to it! (You might have to squint tho lmao). Enjoy our guilty pleasure of spicy Chilumi!! -Moon

I love burnout and a crazy schedule. Enjoy some free time writing. -S

(See the end of the work for more notes.)

Work Text:

It was a warm summer evening, and the twins and their friends were having a bonfire at the beach while they were on vacation. Most had wine coolers in one hand, and some had marshmallows or hot dogs on skewers. All were thoroughly engrossed in a round of one person sharing some important lore.

“So that’s how we got together,” Mona finished her story, and the girls of the group nodded. 

“Makes sense. But did you have to add every place you banged first??” Amber complained. 

“It was integral to the story!” Mona defended. “Plus, wouldn’t he agree?”

Lumine wasn’t paying much attention, and whether it was because she was genuinely zoning or had a little too much to drink, she wasn’t sure. She was casually leaning against her boyfriend as she stuffed a browned marshmallow in her mouth. After she finished it, she looked up at Ajax, who was staring out at the ocean thoughtfully. 

“Babe? You okay?” 

“Mm…? G-Girlie?” Ajax stuttered, clearly attempting to return to the real world. “Did you call me?”

“Yeah,” Lumine replied with a frown. “Are you alright?”

He shook his head slowly before he responded, “Just dozed off a bit… thinking a bit about home, you know?”

Since it was much warmer there at this beach than in Snezhnaya all year round, he did have the ground to say that. He wished, at some point, to take Lumine there on a vacation; perhaps to sightsee, or even to visit his family. Proceeding with these wishes was not possible at this time, so he instead took a swig of his wine.

“Oh… feeling homesick, huh? Do you want to talk about it, or do you want to be distracted?” Lumine asked, wanting to perk Ajax up. It pained her to see him upset.

“No, no, I just needed a bit of gazing away,” Ajax answered, scooting closer to her and a bit farther away from her twin brother. “I’m back to reality now. Let’s just have some fun while we have the time!” 

Lumine brightened, happy to hear this from him. “Okay! Do you want another snack, or should we suggest a game or something?”

The other girls clamored for snacks, prompting Aether and Keqing to rise from their seats and move to the grills to prepare the skewers they had brought to the beach earlier. As they did so, the remainder of the group entered a game of truth or dare.

“At least,” Ajax mentioned snidely, “your brother won’t be here to hear this. You know how he is, don’t you, girlie?” 

Lumine laughed. “Of course I know that. We’re basically two sides of the same coin. Two halves of one soul and all that.” 

“Yeah, but even then, he’s still a bit…” he started. “I… never mind. Shall we play now, guys?”

“Yeah, I think we’ll have fun!” Ayaka cheered quietly, and Yoimiya grinned. “Who’s going first?”

“Not I,” Xiao muttered. “Maybe Mr. Kazuha would love to do the honors?”

Kazuha, whom Yoimiya had started dating only recently, shook his head and took another sip of wine. “I’d better not… maybe Scara would want to.”

“Oh, hell no!” Scaramouche spat, not quite on Mona. “Mona is the best instigator, I swear on the Oratrice—”

Mona smirked with a giggle, but she didn’t say anything. He was right! 

“Why are all of the boys such babies?” Amber wondered aloud, and Ayaka covered her mouth to stifle a giggle. 

“I’ll go first!” Lumine volunteered, seeing as the boys weren’t so keen on going first anyways. 

Everyone exchanged looks. “You’re a brave one, darling,” Mona said with a sigh. 

“What’s the worst it could be?” Lumine crossed her arms. 

“Fine then, truth or dare?” Yoimiya asked. 

“Dare, of course!” Lumine was always bored when people picked truth. The dares were much more interesting by far. 

“Girlie, we ought to ease everyone into the mood, you know?” Ajax chided jokingly as he ran his hand along her side. 

“Fine,” Lumine huffed, “but the truth better be good then! Who wants to ask me a truth?”

Scaramouche raised his hand, an evil smirk on his face. “So, the truth… what’s your favorite move in bed with Childe over here?” he questioned.

Lumine choked on her own spit, and Mona slapped her boyfriend a high five. “Since when did this become rated R???” 

“You gotta answer it, babe,” Mona simply said with a shrug. 

Lumine looked between Ajax and the group, trying to gauge his reaction. 

“Err… uh…” Ajax mumbled. “Well…”

Lumine covered her face, but the tips of her ears were red. She was just relieved Aether wasn’t around…but she couldn’t guarantee he wouldn’t come back at any moment or that he wouldn’t find this information out through the grapevine. “I like it from behind…” she mumbled. 

At that, Ajax perked, and the weight on his shoulder felt increasingly heavy as Lumine buried her face into his shirt. He leaned over to whisper in her ear, “I can make it happen now…”

Butterflies fluttered in Lumine’s stomach at Ajax’s naughty comment. “But what about everyone still here? Surely, they’ll know…” she whispered back. 

The remainder of the group, shocked at Lumine’s answer, burst into an outcry. “No way that question was so easily answered!” Scaramouche hooted, slapping Mona’s thigh quite sharply. 

“Oh, like you don’t have a favorite position, too!” Mona teased with a flirtatious wink. 

“Excuse me? Why, you…”

Mona silenced Scaramouche with her lips, pushing him back onto the sand. While the rest of them, through the constant chatter, commented about what had just occurred, Ajax and Lumine saw their opportunity, rose, and hurried off to their shared vacation home hand-in-hand. “Don’t worry, they won’t know,” he said as they continued on their trek. “Even if they did… would they be that surprised?”

“You make us sound like sex-crazed animals,” Lumine complained, but there was almost some truth to it. She had come to realize their sex life wasn’t exactly the most private. 

They made it to the door, which he quickly unlocked. Once they stepped inside, he slammed the door shut and lifted her in a bridal carry through the hallways and up a few flights of stairs. She held tightly onto his torso all the while. 

“Hey… it isn’t my fault you can’t control your volume~” Ajax teased into her ear.

Lumine flushed scarlet. “I’m pretty sure it’s your fault for being so… so…!” She couldn’t even continue her sentence, not wanting to puff up his ego. He was well aware that he was good with her in bed, seeing as her sounds alone confirmed that.

He opened the door to the room they shared and the inside consisted only of a queen-sized bed, a desk, and wide windows with a view of the ocean. Upon passing the threshold of the door, he unceremoniously tossed her onto the bed before slamming the door shut. Immediately he climbed atop her, and his lips were on hers in a flash.

Lumine shrieked when she was tossed, but she had no time to react before he was kissing her. She melted into their kiss, wrapping her arms around his neck and opening her mouth slightly to allow him entrance, which he eagerly did, his tongue exploring the crevices of her mouth. 

Soon, Ajax broke the kiss, but only briefly to tear off his button-up shirt. Moments later, the couple engaged in yet another passionate make-out session, and his hand came to her breast, lightly grasping it through her emerald-green bikini top. He wanted the thing off, as indicated by his rapid hardening against her.

Lumine couldn’t deny that she loved how hard she could make him just by wearing something sexy and by kissing. With an innocent smile and a breathless giggle, she teased, “Someone’s eager~ Was I really able to rile you up just from telling everyone I like when you rail me?” 

He found the knot holding the bikini top together on her neck and gracefully undid it. However, he didn’t let it slip off just yet, for he responded, “Mm… oh, you bet I do. I can feel it from down there too~ We didn’t even go in the water!” 

“Who needs water when I have you to turn me on?” She ran a hand through his hair before pulling him into another heated kiss. Despite beginning to feel desperate for him, she was too prideful to admit it. 

Her other hand went into his orange trunks and grabbed his length, causing him to moan into her mouth. His hand pulled the bikini top off, and it soon began to massage her breasts. All the while, she continued to stroke him during their intense kiss, tongues lashing at each other erratically.

It was a while before they had to pull away for air, panting, and Lumine rested her forehead against Ajax’s, her hand moving faster on his length. “How do you feel, babe~?” She whispered breathlessly, enjoying his touch as well. 

He could do nothing but growl, “Clothes. Off.”

Lumine giggled, apparently feeling mischievous. “What if I won’t do it?” 

Ajax, with a deep tone she had not yet heard before, responded, “Girlie… it doesn’t take much to make you cave~”

“Make me cave, then~” She challenged boldly. 

He couldn’t deal with the massive tent in his trunks due to her challenge. It’ll be for later. He sat her up on the edge of the bed such that her back leaned into the headboard, and he slipped aside the part of her bikini bottom covering her entrance. Moments afterward, two fingers entered her, and he thrusted them in and out quite quickly. “See? You’re so wet… this is effortless,” he whispered.

“A-Ahhh…” she moaned, gripping the mattress as her toes curled. “N-Not caving…” she choked out.

His mouth curled up into a smirk, and he soon dove into her breasts, nipping and sucking at them anywhere his lips could make it. His fingers did not idle as her entrance easily welcomed their presence, almost sucking those fingers into her. For good measure, he threw a third finger into the mix in order to simulate her even more.

Lumine’s moans only grew in volume as Ajax pleasured her sensitive nipples and entrance. “A-Ajax…” her voice sounded pleading, like she was so close… 

“Yes, girlie…?” he groaned, clearly enjoying her body’s reaction and her own sounds.

“Fuck me,” she begged. “Please, I need you…” 

Satisfied with Lumine’s response, Ajax stripped off his trunks and pulled her bikini bottom down her creamy legs. “See? Told you that you would cave so easily…” he muttered, his tone disappointed yet light.

“Fuck you,” she whispered half-heartedly, clearly too excited for him to do her that she didn’t really mean it.

He turned her around so that she lied on her stomach, and she lifted herself barely so that she could be on all fours. Stroking himself a few times, he moaned a bit before finally entering her from behind. “Ohhh~ already taking me this early, hmm?”

“I’m gonna kill you,” she threatened, but she couldn’t help moaning as soon as he began thrusting into her. “You’re being so mean today…” 

His hands grabbed her breasts from below, and he continued pounding her from this way. “You did this… but I love you for it,” he breathed. “Oh, fuck…”


During the middle of the group’s game, it devolved quickly into madness. Everyone had taken part in at least one dare and had answered one question, save for Aether and Keqing. When those two arrived where the people were, they almost dropped the food they’d made for them just minutes earlier!

“What happened here…” Aether whispered, gently nudging Keqing’s side.

Keqing was about to answer what her guess was, but Mona spoke up, lipstick smeared across her lips and kisses all over Scaramouche’s face. “Truth or dare got heated!” 

“We can see that…” Keqing mumbled, unsure of what to make of the group.

“I’m pretty sure the girls are wasted,” Kazuha offered helpfully, a small tint of drunkenness in his voice. 

“Uh huh…” 

“Am not! I’m so sober I didn’t even kiss anyone!” Amber protested. 

“Amber, you’re such a lightweight….” Noelle commented from beside her quietly.

Aether scanned the crowd and noticed two bodies missing. “Hold on, uhh… where’d Lumine and Ajax disappear off to?” he asked as he shook a bit, the platter in his hands threatening to fall.

“Probably to go fuck,” Mona replied vulgarly. 

“Mona!” Ayaka scolded from beside her. 

Mona crossed her arms. She still looked quite ridiculous, so it was hard to take her seriously. “What??? Just because I tell the truth doesn’t mean I should get yelled at for it!”

“Almost as if you wouldn’t have been absolutely railed right here, right now,” Scaramouche chided. “You little…” 

“What’s stopping you?” Mona flirted, twirling her long hair around her fingers.

“Whoa, whoa, whoa!” Xiao, the ever-quiet one, shouted. “Can you maybe not do that in front of everyone?”

Aether and Keqing looked at each other and shrugged their shoulders. “Anyway, I guess I’d better leave these skewers here…” 

“Good idea,” Noelle smiled apologetically. It appeared she hadn’t had a drop to drink, or if she did, she had to be holding it well.

“K, you think we ought to check on them?” Aether asked after they walked back to the grill area. “I’m still… a bit, you know?” 

“Yeah, I understand,” Keqing replied comfortingly, reaching over to take his hand in her own. “It’s up to you what we do. You know I’ll come with you.” 

Aether pondered for a moment, but eventually, some sense of resolution sprouted through his face. “She’ll be fine, probably. But as for that guy… we’ll see. Mona’s right, probably…”

Keqing squeezed her husband’s hand. “You know how those two are. At least one thing you can be sure of is that they love each other. Isn’t that a little comforting?”

He responded to his wife’s squeeze with one of his own. “He’d better marry her at this rate, honestly.” 

Keqing couldn’t help but smile. “Would you even allow that?” She teased. 

Aether responded, “It’s the least he could do. She’ll at least be better off than the Mondstadt friend group she has. No shade!”

Keqing laughed. “I guess you’re right. Why don’t we take a walk? Then we can just have more time to ourselves.” 

He nodded, and together, they walked along the shoreline of the beach and past the chaos of their friends. Aether was pretty sure that Scaramouche and Mona found a secret cave or other suitable place to bang until one of them dropped, and the rest of them had several drinks in them and were vulnerable to such.

But as for them… as long as they had each other, they had more than enough fun of their own. 


“I love you too,” Lumine panted. “Fuck, I’m gonna marry you someday, aren’t I? And I’ll be stuck with your annoyingness…” Despite saying this, there was clear affection in her voice; she really, truly loved him. 

Her comments only spurred Ajax to increase his pace, and he did so instantly. His hands came to her stomach in order to further stabilize her. As he bent over her, still railing her, he whispered, “But I’ll have the best fighter as my wife…”

Lumine’s heart skipped a beat, practically radiating happiness as she moaned louder, throwing her head back slightly. “I can’t wait…” 

Ajax spoke into her mouth, “Then let’s tell everyone our plan, ohh~ Let me hear you, girlie…”

He now thrusted into her at an uncontrollable pace and leaned over her shoulder, attempting to kiss her. She turned her head to give him what wanted, even though their kiss was sloppy because of their lower bodies’ actions. She was almost screaming from the pleasure now, biting the inside of her cheek to quiet herself down. Fuck this handsome boy and his ability to make her so loud…

He wasn’t quiet either due to the feeling of her taking his length perfectly. As he hit a particular spot within her, they both let out a pleasured scream. He hit that spot again and again, and he resumed grabbing at her breasts while doing so. Her body and personality… she’s so intoxicating… but she’s the drug I want to die on. 

Lumine’s legs shook, and she found it hard to keep herself upright because of the spot he was hitting. The pleasure was too much in the best way. “A-Ajax!!!” She moaned his name over and over, as if it was the only word she still knew.

“Lumi… Lumine…” he moaned as he kept on going, clearly drunk on the pleasure. “Fuck, you feel so good…” 

Lumine’s mouth felt dry from all of her moaning, and she swallowed thickly before whispering, “I started on birth control a few months ago… so you can…” she left that part up to interpretation, but it didn’t take a genius to know what she was implying. 

Ajax now grabbed her hips as he rammed into her, moaning and screaming as he went. By now, he bucked his hips as fast as he possibly could, and he moaned, “Close… close…?”

“Aaahhhh, yes~” she answered. 

With a smack to her ass, he whispered into her ear, “Then come for me, girlie~”

And with one more intense smack, she climaxed, practically sobbing with pleasure. Every nerve of hers was on fire, and it was a high she didn’t want to ever come down from. Her nectar washed over his length, and he released into her not long afterward with a long and breathy moan.

He pulled out of her, and together, they laid on their sides in each others’ arms. Lumine hugged Ajax tightly, tears brimming in her eyes from a sudden burst of emotion. “You have no idea how much I love and adore you.” 

Exhaling heavily, still caught on the high, he responded, “If you say that… then I can say this statement.”

His finger lightly grazed her side before resting on the top of her breast. “I don’t think you have any idea how much I love you and cherish you. Not just because you are hot— which is a bonus— but because you match me.”

She laughed breathlessly, feeling her heart could simply explode from all the love she was feeling. “We make quite the couple, don’t we?”

He answered her with a kiss. It was gentle and not tainted with lust, totally unlike them before this moment. “Mm… I would say so.”

They remained there for a few minutes, calmly breathing and holding each other tightly. Nobody said a word for those few moments, until Ajax broke the silence.

“Girlie, you said something about marrying me, didn’t you…?” he inquired, slightly confused.

Lumine’s face turned several shades of red. “Yeah…I did,” she admitted. “But…I mean it. Not just in the heat-of-the-moment way, I really mean it.” Her heart was in his hands now— she just had to pray he didn’t crush it. 

He nodded. “I see…” he began. “I see marriage as… something we can pursue. It’s a possibility between the two of us. I mean, surely your brother would know all those intricacies, wouldn’t he?”

“He would,” she confirmed, but she wasn’t sure how to feel. She didn’t want to pressure him one way or another, but…he didn’t seem as sure as she felt. She looked away, staring at the ceiling and trying to change the subject. “They’ve been married for a couple months at this point…feels like their wedding was yesterday.” 

“No, girlie, don’t think so negatively,” he tried to reassure her. “What I mean is this: I mean that I very much would like to be your husband. I’m sure that our timing will work out, even if it isn’t tomorrow or in a week or in a month.”

He continued and he turned her to face him. “It’s because I love you to such an extent…”

Lumine’s eyes were glossy. “That…?”

“That we should indeed get married,” Ajax proclaimed. “Who cares if your brother got married before you? We’ll have our time, I promise, Lumine.”

She buried her face in his chest. “You mean it? You’re not just…I don’t know, telling me what I want to hear?” 

“I do mean it,” he answered simply. “I really do mean it.”

She sniffled and held out a pinkie to him. “Promise?” 

His pinkie twirled with hers. “Promise.”

Lumine looked back up at him now, beaming with happiness even with a stray tear trickling down her face. “Okay.” She then took a deep breath, feeling recovered now and emboldened by their conversation. 

She gently pushed him onto his back, climbing on top of him and straddling his hips with her thighs. “Let me show you how your answer makes me feel,” she whispered. 

Ajax’s eyes opened wide, shocked at the initiative she took. “Oh…? Girlie, never knew you had this boldness in you~”

She planted soft kisses on the corners of his mouth and all over his face. “Guess we’re learning something new today, then~” 

He put his hand on her side. “Well, girlie, we have until your brother gets back here, don’t we? Do you think that he’s—”

“No, he would’ve texted me if he was on his way back,” she reassured, despite having no evidence. “So we have time, my love~”

He laid back into the mattress, eagerly anticipating what she was going to do. “In that case… I’m looking forward to this~”

She giggled mischievously and began to rub her still-wet womanhood against his length to get him hard again. It only took a few moments before he sprung back to life, but she continued what she was doing, almost as if she was teasing him…

“Still so wet, hmm?” he teased. “I guess I still do this to you even if I’m in such a position as this…”

“I still have your seed seeping out of me too, you ass,” she whispered, but every insult she ever uttered never meant anything with the affection in her voice. She just couldn’t hide it.

He tried to reach up to grab her breasts again, and she didn’t protest upon feeling his hands there again. With a moan, she placed her hands on his chest and lifted herself up to adjust herself over his length. When she was sure she could slide in, she sat down on him, his length fully inside her again. It was a feeling she loved no matter what position they were in and who was doing who. She moaned quietly, looking down at him. “You ready?” 

His hands remained on her breasts for a while before they settled at her thighs. “Ready for anything, girlie…” he groaned, voice filled with pleasure.

Lumine, clearly satisfied by his answer, began to flick her ass up and down, bouncing on his length and biting her lip to stifle her own moans. She kept herself steady with her hands on his chest.

Ajax moaned along with her, and his pleasure only intensified when his gaze turned to her breasts bouncing around. He felt almost hypnotized by them, and he tried to memorize the pattern of the tattoo on her breasts -- the same star that captivated his heart some time ago. He was honestly enamored at the fact that she kept her association with the star shape in her outfits.

“Like what you see~?” She teased with a pant. 

“Oh, yes~” he groaned. “You don’t need to be quiet, let them hear you still~” 

She listened to him, her moans crescendoing as she rode him faster. Her legs were burning, but she was determined to make him finish again. However, he sensed her desire, and so he transferred one of his hands over to her entrance, flicking there very gently. With the other hand, he squeezed her breasts a bit rougher than before, and with each descent of her hips, his own hips met her in the action.

“I’m not letting you win here~” Ajax moaned, his breath laborious yet pleasured. “Mmm, fuck…”

“T-Trying to make me come first~? I’ll accept the challenge~” She answered between moans, the sound of their bodies intertwined echoing throughout the room. Unluckily for Lumine, though, she was very sensitive where he was flicking, and she squeezed her eyes shut, as if willing herself to not finish so easily as she continued her hip movements. 

His eyes almost rolled back due to the intense slamming of her hips on his length. He, however, almost maintained his composure and continued his treatment of her, except for the fact that his own actions felt more erratic and random.

“You’re so close, aren’t you…?”

“Fuck you,” she whispered, almost at her limit. It showed by how she had to slow down her own movements. “Are you?” 

“N-No,” he lied. “You’re probably closer than I am~”

“F-Fine, what does the almighty winner get?” 

He didn’t answer and slid his fingers around her clit, and the combination of his length and fingers proved to be her end. Her climax came fast and more intense than the last one, and she couldn’t keep up with her hips as she rode out her high, moaning the loudest of all day. 

But he managed to sit up finally, and he thrust into her at a rather rapid initial pace. Clearly, he needed to finish, too. He claimed her lips in a frantic kiss in an effort to release, and she quickly reciprocated.

The moment their tongues collided, he exploded for the second time inside her. She took his release easily, feeling his warmth fill her up. She collapsed on top of him, feeling amazing but exhausted. 

“Fuck… girlie, I didn’t know you had it in you,” he praised.

Lumine was happy for the praise and smiled tiredly. “You’ll get this for the rest of your life now,” she promised. 

“Oh, and by the way…” Ajax whispered promisingly, “The winner receives a real love from the loser. That’s all~”

She giggled. “You already have that, silly…” 

He said nothing more and spread out the blanket to their side and covered the two of them in it. Moments later, they fell into the deep embrace of slumber.


Shortly after that, Kazuha threw the door to their shared house open. “Good to be back home after…” he began to slur, swaying a bit before collapsing on the floor.

Yoimiya collapsed beside him, sighing tiredly. “What a night…” 

Ayaka frowned at the pair. “Shouldn’t you guys at least try to go up to bed…?” She was completely sober. 

They didn’t respond to her. However, Amber and Noelle did begin walking upstairs to their shared room that had twin beds in it, and coincidentally, their room was beside Ajax and Lumine’s. Amber reached for the doorknob and turned it despite Noelle protesting their room was still one more room over. 

When Amber turned the doorknob, she saw Ajax and Lumine slumbering peacefully upon the mattress in the room. Articles of clothing were thrown in random corners of the room: a bikini top draped over a lampshade and its matching bottom on the desk. A pair of swim trunks and a shirt lay bunched up by the window. No sounds came from this sleeping couple.

“My baaaad!!!” Amber slurred, somehow not waking them up, and Noelle covered her eyes in embarrassment as they shuffled away from the room, closing the door and returning to their own.

When Aether and Keqing returned later that night to the house, they heard the news from Ayaka’s recounting of Amber’s screaming earlier.

“Why am I not surprised…” Aether sighed, burying his face in his hands.

“Shh, shh, it’s okay…” Keqing wrapped her arm around Aether in an attempt to comfort him. “Why don’t we just head to bed for the night? I think everyone could use the rest…”

“Mm…” he responded. “I’m just saying I’m not surprised. Let’s go to sleep. Goodnight, everyone.” 

The couple of their friends who were still out in the living room finally retreated to bed, and Keqing led Aether to their room. Both of them flopped onto their bed, and he fell asleep almost immediately after his side hit the mattress.

Keqing barely mumbled a “good night” before he was asleep, but she smiled nonetheless, cuddling into his side and falling asleep soon after. 

The rest of the house seemed to fall into a slumber as well, and hopefully, they’d have more fun on their next day of vacation.

Notes:

Come scream with us on discord!! And as always, you know you can find me on twt and insta too :) -Moon

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