Chapter Text
The tension in the air is so thick you could slice it.
The two men are all up in each other's space, refusing to break eye contact. This wouldn't be such an unusual sight if it wasn't for the fact that they were both stark naked.
"You have a lot of nerve, thinking you can lay a finger on her," Diluc speaks, anger dripping from his words.
"Oh? If I recall correctly, she was the one who invited me," Kaeya retorts smoothly, but his one-eyed gaze is as icy as his Vision.
"Hmph." Diluc folds his arms over his bare chest. "Even so, I can't allow you to disappoint her."
Kaeya smirks but it doesn't reach his eyes. "Now, now. When have I ever disappointed a lady in the bedroom? Seeing as you have no sources to back your claim, I would say that perhaps you're the one who's worried about his performance."
"Say that one more time for me, won't you, dear brother ?" Diluc seethes, nails digging into his own bicep. The temperature in the room rises.
"I didn't think you'd have hearing problems at your age, Diluc!" Kaeya exclaims dramatically. "Besides, one would think that since you're so busy brooding, then perhaps you've never even known a woman."
"Not only is that untrue, it would still be preferable to your lecherous habit of sneaking into every woman's bed."
"Um, guys…"
"Do you even care about their pleasure, or are you too focused on getting yourself off first?"
"My goodness, Diluc. What would you even know about what a lady likes?"
"I know that she would not want to have her feelings toyed with for your own amusement."
"Guys--"
"How cold of you to make that assumption." The room temperature on Kaeya's side drops to counter Diluc's heat.
"Is it an assumption if it's the truth?"
"Stop it--"
"Cite your sources, Diluc~"
"Cite my fist ."
"ENOUGH!"
Their foreheads had knocked together during their argument, but they now snap to attention and turn to the source of the interjection.
Lumine sits there on the bed, impatience clearly written on her face. It contrasts sharply with the delicate white lace lingerie she wears, thin slits just barely revealing her nipples and entrance. She leans back into her palms and sighs.
"Enough with the fighting," she scolds. The two men briefly exchange awkward glances. "You already argue enough normally as it is, and I won't allow any more of it in this room. Got it?"
The adoptive brothers nod a little meekly.
"Good." She swings one stocking-clad leg over the other and rests one hand over her thigh. To the both of them, she looks like a radiant goddess. "Now, with that out of the way," her cheeks color with a dusting of pink and she smiles coyly, "get over here and fuck me. "
Both of them proceed to experience the fastest hard-ons in their entire lives.
"I have to admit, this isn't what I had in mind when you asked for help with your experiments…"
Sucrose looks up from her clipboard. "Oh, I'm sorry. I had believed that revealing the nature of these tests would affect the results… Sometimes the element of surprise can have, well, unexpected effects." She pushes up her glasses. "Still, I apologize…"
Lumine shakes her head with a sigh. "Well, I'm in it now." She glances down at her folded clothes beside her on the bed, then at the tiny vial in her hand.
Just a few minutes ago, it contained a thick, gold-colored substance similar to honey. She drank it as instructed and waited. Within just a few minutes, her body began heating up, and something coiled pleasantly in her belly.
At Sucrose's inquiry, Lumine relays the information to her, which the alchemist jots down with impressive speed. "I see… I didn't think it would act so quickly," she muses, tapping her quill to her chin. "Please stay right there. I'll need to do some more hands-on tests."
What has she gotten herself into? Regardless, Lumine does as instructed while Sucrose gathers a few things. She approaches the bed and sits down in front of Lumine.
"Now then, if you don't mind…" The green-haired girl gingerly prods Lumine's breasts with her fingertips. The traveler's entire body twitches as an expectedly loud moan escapes her mouth, which she covers with her hand in embarrassment. "Hm…" Sucrose taps her chin and then writes on her clipboard. "Increased sensitivity to touch on common non-reproductive erogenous zones…"
Her fingers trail lightly down Lumine's abdomen and the blonde shivers all the way. Sucrose nods to herself and angles her head to get a better view between the other girl's legs. "Oh, interesting," she thinks aloud as she makes another note, "Faster spread of blood into genital regions, leading to increased puffiness of the labia majora. Clitoral hood already retracted," she pauses in her notes long enough to give the little bundle of nerves a very gentle push of her fingertip.
Lumine throws her head back and muffles her mouth as she screams. Just that little poke was enough to send her dangerously close to the edge. Her body trembles, unable to process receiving too much pleasure way too quickly.
"Amazing…" Sucrose breathes, adjusting her glasses over wide eyes. "This is definitely much more potent than I had anticipated. And… oh--" She reaches into her pocket and produces an empty vial, which she uses to scoop up some of the obscene amount of slick pouring from Lumine's sex.
Corking the vial, she returns to her notes. "Greatly increased production of natural lubricant; sample collected for further testing…"
"Sucrose," Lumine groans.
"Oh-- yes?"
"Please. Put that down and get me off already."
Lumine catches him grinding his pelvis against the bed post.
Razor gives her a confused look, innocent despite his gradually reddening face. "... But… it feels good."
The traveler holds her head in disbelief. "Razor… have you been masturbating like this this whole time ?"
He frowns and tilts his head like a confused puppy. Right. It would make sense for him to not know what it's called.
"Okay… how do I put this?" She walks over to him. From this distance, she can clearly see the tent in his pants, and a small wet spot in the fabric. This poor thing. "So, this is something you do in private - alone or uh… with someone you really like."
He nods. "Like Lumine?"
Ack. Blood rushes to her cheeks. "S… sure. It's um… you know where babies come from, right?" He nods again, giving her a look that implies duh, everyone knows that . "Well, it's related to that. It's normal, and doing it feels good."
Archons above. Is she really doing this right now?
"But grinding like that is… probably not the best way. Usually, boys like you will, um, take off their pants and… rub it," she demonstrates with a jerking hand motion.
Razor pays rapt attention to her explanation. He glances down and swiftly undoes his pants, throwing his gloves off before pulling out his - surprisingly large - erection.
Oh, geez. Okay. "Or, like I said, if you have a willing partner, they can rub it for you. But don't ever let anyone you don't trust touch you there, okay? And don't touch anyone like that unless they agree, as well." She did not expect to give someone a lesson on consent today. "If you feel uncomfortable, stop everything right away."
Razor nods and looks down at his engorged length; Lumine can't help but follow his gaze despite her best efforts to look away. "Lumine," he looks at her again, still as innocent, but with hunger in his eyes. "He-- Can you help me?"
Her heart skips a beat. "Uh… I don't mind, but are you sure?"
Another nod, more fervent this time. "I'm sure. Because you are Lupical. I like you." He says so without a shred of embarrassment and smiles at her.
… Oh, screw it. "Okay," she says, sidling up behind him and leaning her chin on his shoulder. "But if you want to stop, just say so."
The boy shakes his head and turns it to look at her. "That won't happen," he says. "I want to learn more. With you, Lumine."
He gives her cheek a small, affectionate lick, and she can't control her blushing. Taking a deep breath, she wraps her soft fingers around Razor's length.
The people of Mondstadt reported sounds of howling that evening.
Lumine's first foray into Snezhnaya resulted in her falling through the ice of a frozen lake.
Thanks to Childe's quick thinking, he managed to pull her out of the freezing waters and bring her soaked form to a nearby shack he often used as shelter. Once there, he wasted no time in stripping her of her wet clothing, toweling her off and wrapping her in thick fur blankets. He got a fire going and set her near it.
"Okay. Now try to stay awake," he says, brushing away a strand of damp hair clinging to her cheek. "Stay with me." As Lumine shivers in her blankets, Childe then works on hanging her soaked clothes from an improvised clothesline by the fire.
Time passes. Lumine doesn't stop shivering. Childe grows anxious at the sight of her blue lips. "This isn't working…" he mutters.
There was only one option left.
"Lumine," he spoke to her gently, but firmly. "We need to get you warmed up faster. I know a way to do so, but…" He swallowed a lump in his throat. "You might not like it."
Lumine looks up at him, but he doesn't wait for a response. He immediately starts stripping. The girl isn't sure whether to watch or look away, but she quickly finds herself warming up just the tiniest bit at the sight of his toned body, muscles flexing to disrobe as quickly as possible.
He doesn't even hesitate to remove his underwear.
Before Lumine can see anything, though, he lifts the blankets and joins her. He wraps himself around her trembling body protectively, cupping her cheek to turn her face towards his. "Sorry, you're gonna have to deal with this for now. As I said before, you need to stay awake."
Lumine nods weakly. As embarrassing as it is, it's preferable to certain death by hypothermia. Fortunately for her, the addition of Childe's body heat seems to be a great improvement.
The Harbinger focuses on rubbing her arms and back to stimulate her body into generating heat. Lumine holds onto him as her whole body shivers, working overtime to compensate for the lost warmth.
Already, she regains some clarity. Though still freezing, she regains the strength to speak. "Are you not going to use this opportunity to take advantage of me?"
The man scoffs. "Good to know your sharp tongue is back." He meets her gaze with an amused smirk. "Who do you take me for? I may be Fatui, but I have some standards."
"Good to know," she replies quietly.
Childe's hands slow as he gets lost in thought. Lumine peeks up at him curiously, only to see a light dusting of pink on his cheeks. "What if…"
Feeling daring, she finishes his thought for him. "What if having sex would warm me up even faster?" His gaze snaps back to her, eyes wide in shock. "Bingo?"
"I… didn't realize that among all your skills, you were also a mind reader," he admits half-jokingly. "It was just an idle thought. Forget it." He lets out a small gasp when he feels Lumine's cold hand on his hip.
"What if I like the idea?" She asks not so innocently.
Childe swallows. "Are you sure?"
She scoffs with a smirk. "Sure, why not? Whatever works."
His brow furrows seriously and his cheeks brighten. It's Lumine's turn to gasp when she feels something hot and hard poke against her thigh. Childe shifts, one hand repositioning behind the small of her back to pull her closer, the other drifting down to the juncture between her legs.
"Okay. But be warned. This won't be quick."
Lumine smirks. "I was hoping you'd say that."
To Lumine's surprise, Barbara breaks away from the kiss to cover her bare chest with her hands.
She gives the Deaconess a puzzled look. "I… Sorry, should I not have removed your bra?" She glances down at the frilly undergarment in her hands.
Barbara sighs and shakes her head. "No, it's just…" Her eyes are getting misty, and her cheeks color not only with arousal, but also with shame. "My, um… My breasts are rather… underwhelming…"
Lumine's gaze sets on Barbara's hands, which successfully cover the entirety of her breasts. She didn't need to disrobe her to notice her Hydro friend was rather flat-chested; her outfit did little to hide that fact to begin with.
"Hey, I don't mind." Lumine says with a sheepish smile, patting her head in an attempt at comfort. "There's nothing wrong with smaller breasts, despite what some people might say."
Barbara's lip quivers. "I know, but… I can't help but be envious of my b-- of Jean, and Miss Lisa… They both have such beautiful, graceful bodies and enchanting curves…" She clasps her hands together in prayer, though the gesture still conceals her chest. "Oh, Lord Barbatos, forgive me for this sinful envy…!"
Lumine can't help but chuckle dryly. She's absolutely confident that a certain green-clothed bard would not at all care about Barbara's 'sins', and would instead be amused by them.
"Can I see them, Barbara?" She asks gently, careful not to put pressure on the girl.
Barbara pouts before finally nodding. "Alright…" Averting her bashful gaze, she slowly lowers her hands, revealing a pair of small, milky white breasts with perky, peachy nipples, lying almost flat against her ribcage.
"Oh, wow!" Lumine exclaims with a smile as she leans closer for a better look. "Barbara, your breasts are really cute!"
"Y-you think so…?" Asks the Deaconess, casting the traveler a shy glance.
"Mhm. And honestly, a smaller chest is way more practical to have…" She raises her hands to touch them but stops, looking at the girl for permission. Barbara nods. "You wanna know the best part about small breasts?"
Barbara blinks and looks at her curiously, shame gradually washing away. "What is it?"
Lumine grins. "With less surface area, the nerve endings are closer together. Which means…"
She presses her fingertips into Barbara's skin first, then her palms. She gives her breasts a gentle squeeze, moving them up and into a circle, pressed gingerly into her ribcage.
Barbara throws her head back with a sharp gasp. "Mmm…" It takes a very short amount of time before Lumine's gentle ministrations has the girl moaning and sighing contentedly.
"... Which means, they tend to be a lot more sensitive."
And that was just the first thing that Barbara would learn that day.