Your First Kiss Headcanons | THE DEMON BROTHERS 2.7k words | NSFW | gn!Reader | Smutty Smooches Content warnings: Pining demons, anxiety/insecurity, mostly fluff and suggestive comments. Some cursing. Certain demons are a bit, uhh...steamier than others.
LUCIFER
The fireplace in Lucifer's private study crackles nearby. He feels warm from the flames, the bottle of Demonus you've been sharing, and your body curled against his.
A comfortable silence falls over you both, and it's natural for his gaze to seek yours. Your eyes are dark, and it's not a trick of the light when he sees your eyes dart down to his mouth.
Your face starts to move closer to his, and the only thing louder than the cursed record playing is the thrum of anticipation and desire that sets his nerves ablaze.
He's imagined this moment longer than he'll ever admit. He's been waiting for a sign that you wanted to go down this path with him, no matter where it leads. Now that he knows what you want, it's too late to turn back now.
Your hand rests on his chest and he can feel your touch through the layers between you - the clothes he wears, and the walls he’s put up to deter those unworthy of him.
He closes his eyes to savor the experience of kissing you for the first time. Your taste makes him lightheaded, and it's more irresistible than the finest vintage of Demonus.
He follows your lead at first, slotting his lips perfectly against yours and enjoying the sensation of your lips moving gently against his own.
When you put a little more heat into the kiss - your tongue tentatively swiping against the seam of his lips as you move your body closer to his - he cradles the back of your head and slides his other hand down to your waist. He pulls you against him and let's a groan rumble in his chest, undeniable proof of his desire and it encourages you to give him more.
It feels like all you've been through together has brought both of you to this moment, and he's been patient long enough. He takes lead of the kiss, his buried feelings for you spilling from his lips to yours, while his passion consumes you both.
MAMMON
Mammon is caught off-guard by your first kiss.
He looked away in embarrassment after telling you, in a very complicated, round-about way, that you meant the world to him.
He pretended to look at something in the distance, but his cheeks were warm. He had to resist the urge not to look at you again, to pretend that you're not the flame he's constantly drawn to.
His feelings for you are overwhelming sometimes. You're just so fucking amazing, and all his - even if you don't realize it yet.
But Mammon is like an open book to you; you know how he feels, how he's always felt about you.
When he looks at you again, he's startled when your face is suddenly so close to his.
You lean forward and give him a kiss - it's quick, and it's not perfect - but he gets the hint of what you're trying to tell him: You mean the world to me, too.
He sputters about how you shouldn't go around surprising demons like that, and he almost thinks the kiss is supposed to be a joke, but he knows that's not true. It can't be, not when you're looking at him like he hung the moon, and your smile is wide and hopeful.
The happiness in his chest threatens to bubble over, and he knows he'll never forget this moment.
Fuck it. He wraps a hand around the back of your neck and pulls you back in for another kiss. It's still not perfect - you're both smiling so it's a bit clumsy, and your teeth clack together.
He wants more of you - he'll always want more. He wants to pull you close and hold your body against his, and he wants to plunder your mouth with his tongue, but not now. Not here.
He nips your bottom lip before he reluctantly pulls away, and he practically drags you back home to continue this in private.
LEVIATHAN
Levi didn't see the big deal about giving you the collectible game figure you wanted - so why the hell did you lean over and kiss him?!
It was over almost as soon as it began, a quick kiss against the corner of his mouth after you thanked him.
You're too focused on your new toy to notice Levi short-circuiting beside you on the sofa in his room.
His breathing is a bit erratic, and he rubs his sweaty palms on the denim of his jeans.
His throat is scratchy and dry all of a sudden, but licking his lips doesn't help - especially not when he tastes the evidence of your kiss: the sweet, sticky residue from the bag of candies you shared earlier.
He crosses his legs until he can discretely pull a pillow into his lap to hide the growing bulge between his legs.
You're talking excitedly about something, but he can't make out the words - his mind is still reeling from the implications of why you kissed him.
The kiss couldn't have been an accident - you leaned over on purpose, and he felt your chest press against his arm so your lips could reach his.
He thinks that maybe it was a joke at first, or some sort of tease, but he looks at you closely. Your eyes are a bit brighter, and your cheeks are a tinge darker than usual. You keep glancing at him shyly from the corner of your eyes.
He doesn't realize how long he's been freaking out until you ask him if he's alright.
He didn’t notice you spoke to him at first: he was too busy staring at you and your soft, candy-sweetened lips, trying to figure out what he's ever done to deserve you.
He swallows nervously and braces himself when he looks into your eyes properly. "Can we—can we do that again?"
SATAN
Satan’s first thought when you kiss him is that he wishes he had the nerve to kiss you first.
He likes inviting you to his room to read together - his room is lit brightly enough so that you don’t have to strain your human eyes to read the pages of your book.
However, there’s something alluring about the way candlelight and shadow play across your features. It distracts him from the book in his hands as he stares at you fondly instead.
You’re sitting side-by-side on his bed, which he prefers: the scent of the fragrance you wear lingers on his bedding, and sometimes he can still smell you when he goes to sleep.
You thank him for something - lending you one of his rare edition books, something he probably wouldn’t do for anyone else - and you kiss his cheek.
It’s such a sweet, innocent gesture but it still makes his body grow hot. It's not like the raging inferno of his anger, but more like a molten wave of affection that sweeps through him.
He’s not nervous now that he has permission to touch you, and one kiss is not going to be enough to satisfy him.
He cups your cheek and brushes the skin gently with his thumb. You bite your lip to stifle a bashful grin, and he can’t help but press his smile against your own.
His other hand finds yours on his sheets between your bodies, and he nearly whimpers into the kiss when you lace your fingers with his.
Your other hand finds it’s way onto his shoulder and you lean your body closer to his. Perhaps if he were overcome with desire he would wrap his arms around you and pull you down onto the bed.
He doesn’t want to ruin this; he decides this moment is perfect enough. You trade soft, sweet kisses in the cozy haven of his room, where time stands still and only your love remains.
ASMODEUS
Asmodeus wants to kiss you desperately, but he doesn't want you to think you're just another passing fancy in his long list of ex-lovers. He feels like he has a lot to prove to you.
He can't charm his way into your heart, and he knows you want him to be honest and genuine with you.
When he admits that he loves you - more than he's loved anyone before, possibly even more than he loves himself - the cravings begin.
He craves your company, and your touch, and your kiss and your body. He craves you. But he promises himself he won't rush things, and he won't pressure you.
He wanted to go shopping - and buy you something, of course - when some idiot demon on a motorcycle nearly ran you over while you crossed the street together. Asmo wrapped his arms around you and held you close while he cursed the demon who kept driving.
He pulled you into an alley off the main street so he could check on you privately. "Are you alright? You're not hurt, are you? I promise, if I ever see them again, I'm going to—mmph!"
Asmo looked concerned when he examined you for injuries, but he didn't expect you to grab his shirt collar and pull his lips down to yours.
He makes a surprised noise against your lips, then he moans when he realizes you're finally kissing him, and he can't fucking believe it.
His hands roam your body - your shoulders, your back, your hips - and he pulls you even closer as the kiss grows more heated. He can't help it, but neither can you, apparently - adrenaline is a helluva drug.
His kiss is hot and frenzied and desperate, and he feels drunk off your taste, and your lips are so soft, and his nerves tingle every time your tongue glides against his own.
You pull away first, gasping for air even as Asmo tries to chase your mouth because he doesn't want to stop.
His lip gloss feels tacky and it's smeared across his lips and chin. Your mouth is messy too, and your cheeks are flushed, and the way you're staring at him is so fucking hot.
He suddenly decides he's not in the mood to go shopping anymore - but he leads you home by the hand and promises he still has plans to spoil you tonight.
BEELZEBUB
When you're friends, you let Beel pick leftovers off your plate, or you cook him an extra large portion of food. When you start dating, he cares less about food and cares more about other things he'd like to share with you.
He's not distracted by the food on your plate, but the way you moan when you eat something especially tasty, or the way your lips shine after you wet them with your tongue, and he wonders what kissing you will be like too.
Every time sauce or cream clings to the corners of your mouth, he wants to lick your lips clean for you.
He tries to be patient and wait for you to kiss him first. Sometimes you look at him like you're ravenous for him in a way he's never seen before, but he's never been good at self-control when he's starving.
One night he sneaks to the kitchen for a late-night snack, but you're already there. You're leaning against the counter, eating ice cream straight out of the tub, and you freeze guiltily when you realize you've been caught.
Beel's stunned by the sight of you in your pajamas, hidden mostly in shadow with a spoon dangling from your lips when you start to sputter excuses.
He can see that there's a dribble of ice cream, just there, above your lip—
He takes the tub and spoon from you gently - and you smile, because you think he wants to share because he likes that flavour - but you gasp against his lips when he leans down and kisses you.
His lips are soft when they move against yours, and he sucks your bottom lip between his own.
Once the lingering sweetness is gone, all he can taste is you. You taste even better.
He freezes when he realizes what he's doing, and he pulls his hands away from your waist like he's been burned. He starts to apologize, and your face is flushed and he thinks you're upset, but then you ask him to kiss you again.
Oh fuck, you're going to be awful for his self-control.
He kisses you again, and again, and again. He whispers broken praise about how good you taste and how amazing you are between hot, opened mouth kisses against your lips.
When you break the kiss with a pleased sigh, his lips drag along your jaw. He wants more.
You're bracketed between his arms and he's crowding you against the counter. The drawer handle digging painfully into your back forces you to gently push him away.
He knows he's staring at you, and he might be drooling a little now too, but he can't help it.
You feed him the rest of the half-melted ice cream - it would be a waste not to - and lead him from the kitchen to your bedroom, where you can continue things more comfortably.
BELPHEGOR
Belphie is still groggy from sleep when he drapes an arm over your waist. You're both laying in his bed in the attic, and as much as he wants to fall back to sleep, his eyes blink open instead.
You're still sleeping, and your nose makes a cute little whistling noise when you breathe. You're so adorable.
He doesn't consider himself to be the romantic type, but you bring that out in him sometimes. In the dimly lit attic, the fairy lights hanging from the ceiling give you an almost ethereal, whimsical glow.
You look so peaceful when you sleep. Beautiful, gorgeous, mesmerizing—
He scoots a bit closer to you, and he's not sure the blankets covering you both are the reason why he suddenly feels so warm.
You're pouting in your sleep, and you murmur quietly too, and he wonders what you're dreaming about tonight.
He always feels so cozy spending time with you like this, even though you're still asleep. It gives him a chance to think about you, and the things he wishes he had the nerve to do when you're awake.
His head is resting on the pillow beside you, and he brushes his nose against yours. He smiles when you scrunch your nose in your sleep.
He kisses your forehead and cheek next - what isn't smooshed into the pillow, anyway. He peppers kisses along your skin, and he thinks about all the things he likes about you, and the things he wants to do together, and the things he'd like to do for you.
His quick kiss against your lips is impulsive. He's wanted to kiss you for so long, but since you're asleep you'll never know—
He panics when your eyes blink open and meet his.
You stare at each other. He's ready to tell you that whatever you think you felt was just a dream, but then a smile blooms across your face.
He tries to shuffle back from you, but you shuffle forward. He gives up when he's nearly falling off the mattress trying to put some distance from you, and you simply raise an eyebrow as if to ask, "What are you going to do now?"
“Nothing happened,” he says lamely, and the lie sounds as obvious as it feels rolling off his tongue.
“That’s a shame, I was having a nice dream that some handsome demon kissed me.” You roll over and sigh dramatically, and he bites the inside of his cheek to stop himself from grinning.
“Handsome, huh?” He follows you - because he’s powerless not to - and leans on his elbow so he can look down at your cute, pouting face. “And how do I compare?"
You reach up and cup his cheek, and he can't resist the urge to nuzzle into your touch. "Nothing compares to you." The sincerity in your voice makes his throat tighten, and his cheeks are on fire, and what is he supposed to say to that?
You grin at him, and your eyes are soft and full of love for him and him alone.
He's determined to kiss that cheeky smile off your face. He lowers his head to yours and kisses you again - properly this time - and hums happily when you move your lips against his like you wanted this as much as he did.














