but now with a shot of espresso

Very quick recap that the symbols are ▲=Ingo, ▽=Emmet, ⧄=Both

General headcanons

I write them all as being in somewhat open relationships. They're committed to their respective "half", but I write a lot of swinging between them I guess. Some of these situations are communicated, some aren't, hence the non/dubcon warning.

General ship dynamic assignments: G▲▽ fixed, A⧄ verse a lot, but Emmet tops more often. S▽▲ pretty consistently. AS▲▲, GS▲▽, GA▽▽. I think those are the only other combinations I think about having sex enough to have an opinion on. Actually. Let me make a chart.

A lot of my S⧄ headcanons revolve around around them either trying to figure out how to confess their feelings to each other, or navigating the early stages of their romantic relationship. A⧄ act as helpful mentors to them. G⧄ try to help too, in their own way (though a lot of their ideas about relationships are twisted and unhealthy). Basically A⧄ is the angel on their shoulders and G⧄ is the devil.

A⧄ are generally very comfortable and secure in their relationship, maintaining the "power couple" vibes I've seen people describe them with. They always preach the importance of clear communication, which is often disregarded by S⧄ and G⧄, albeit for very different reasons. (S⧄ simply due to their inexperience and nervousness in being vulnerable, G⧄ moreso because their own relationship has blossomed through complete codependence, the implied and the assumed; it's not objectively healthy, but it works for them because they have the utmost trust in each other.)

In my mind, the way these characterizations have been shaping out to be is almost like different points of a very similar timeline. I was kind of joking with the devil and angel on their shoulders comment, but I also kind of wasn't. S⧄ represent a point in time when they were younger and unsure about their relationship and how they ought to communicate with one another. They have the most potential for miscommunication, because they are still stuck in a lot of habits typical of young people; not knowing how to articulate and express emotions and desires; reluctance to be vulnerable, etc. They're at a turning point. A⧄ are the result of them being able to overcome their apprehension and fears and wholeheartedly confess their feelings and expose their vulnerabilities to one another, in a way that makes them stronger. A⧄ hardly ever have fights, and they end any conflicts quickly by being able to communicate their feelings and work together on a solution. They still have some bad habits and insecurities (A▽ feeling as though he has to overcompensate and work extra hard to catch up to or impress his brother, and A▲ having a tendency to maybe be a little too oblivious and carefree, meaning he might not always read the room or might get himself into trouble by being too gullible and trusting), but they know these weaknesses enough to be able to help the other navigate them. Lastly G⧄ also have a strong relationship, but it was the result of a timeline where they couldn't find a healthy way to communicate with each other; their respective insecurities and shame simply festered and mutated into an awful case of codependency, where the obsessive need for possession over each other became it's own form of love. G▲ claims that love is purest when it is acted upon, rather than spoken out loud, but to anyone on the outside it looks perverse and borderline abusive, a constant dance around actually saying their feelings out loud.

Nonsexual headcanons

A▲ and S▲ become close because A▲ kind of just pesters his way through S▲'s emotional barriers. A▽ is always trying to work hard to impress A▲ and prove himself to be worthy and independent, and while A▲ appreciates his efforts and wants to encourage him, it sometimes means A▽ feels a little distant. While A▲ is trying to navigate this, he clings to S▲ and tries to spoil him with attention, asking him to call him "nii-san" in exchange. S▲ thinks he's weird and annoying, but is ultimately endeared by his earnestness.

S▲ goes to A▲ asking how he can catch S▽'s attention more, and A▲ suggests maybe he could try changing his look. S▲ looks doubtful. "But we match. That's the point." "You don't have to match all the time, do you? You could try something different at home. New clothes, maybe? It doesn't have to be something permanent." S▲ still doesn't seem convinced, but eventually sighs and says it's worth a try. A▲ proceeds to take him out to the mall and have him try on some new clothes, most of which show far more skin. S▲, embarrassed at A▲'s enthusiastic compliments, accuses him of just doing this for his own amusement and A▲ agrees. "That's absolutely correct." S▲ promptly decks him.

A▽ being a total simp for his big bro is so funny to me because I just imagine him collecting any merch of him for himself. A▲ walks in one day to A▽ shoving a huge life-size sexy body pillow of him into his closet, and A▽ is sweating bullets, saying "N-nii-san, this— this isn't what it looks like—" Meanwhile A▲ comes up next to him saying "Bravo! What nice quality. They made my body look really nice, didn't they?"

Since A▽ seems more worrisome, I just imagine he’s fretting over work or is struggling through his paperwork, and A▲ comes in with hot chocolate for him and grabs half the stack and is like “I’ll help you finish this, it’ll be faster if we do it together” and A▽ almost starts sobbing. "Wahhh Nii-san is the best brother ever…. I'm so lucky….." Once they finish it all, A▲ pulls A▽ into his lap and kisses his face while praising him waaaaaaaaaaa

It's funny to me that A⧄ and S⧄ are nervous around G⧄ because they're weird freaks. They're like the weird uncles that they just kind of put up with a lot of the time. I imagine the "Hello, HR?!" meme where the first panel is re: A⧄ PDA, where they're holding hands or bringing each other coffee with a kiss on the cheek or smth, while panel two is re: G⧄ PDA where G▲ has G▽ in a collar and leash and is whispering lovingly how he'd like to cut his limbs off while G▽ barks or some shit.

I will keep characterizing G▲ as a seemingly stone-top dom throughout this, but he's still the pathetic and anxious mess my default ▲ is, and he gets really depressed that A▽ and S▽ seem scared of him.

Related to above, I think G▽ is obviously the only one that really understands this about him; that he's genuinely trying to help in his twisted, horribly repressed little ways. When G▽ tries to explain this, it results in a surprising breakthrough moment with A▽, where he concludes, "Ah. He has a hard time putting on the brakes, you mean? I suppose I can understand what that's like."

G▽ and A▽ clash in many ways (G▽'s hedonistic nature vs. A▽'s overly self-conscious and disciplined one), but they can wholeheartedly agree that their big brother comes before anything else. ▲ cheer squad fr.

Despite his usual obliviousness, A▲ is the only one besides G▽ that really seems to understand G▲'s worldview, since he recognizes that he himself could have gone down the same path himself if he hadn't been about to break through his shame and repression. He is sympathetic to him, even if he often disagrees with how G▲ conducts himself. Sometimes he will gently try to steer G▲ in the right direction, but he is usually ignored; despite how they might look, G⧄ are happy with how they are.

Sexual headcanons

S⧄ (assuming they're in an established relationship at this point) aren't sure of how exactly to go about having sex for the first time. S▲ tries to read about it, but it's difficult to imagine it in practice without any visuals. They somehow decide with their complete lack of combined braincells to set up a camera in G⧄'s room. "Those two are always going at it, so they must be experts by now." S▽ reasons. "Isn't this illegal?" S▲ asks. "Probably. Aren't you curious though?" "………..Yes." They set up the feed and wait until G⧄ retire to their bedroom, getting more and more bug-eyed as they watch an extreme BDSM scene unfold on the screen. Eventually, S▽ silently shuts it off. "I think I'm going to be sick," S▲ mumbles and S▽ nods. "Let's start with porn first." (the joke is that highly produced porn isn't usually an accurate representation of sex but G⧄ are so buck wild that porn is the more realistic alternative, do you get it)

A▽ has a tendency to take his stress out on A▲ in bed, being even a worse stress biter than my default ▽ would be. A▲ is pretty used to being his personal stressball at this point, and likes being tossed around in bed. A▽ has a tendency to act out onto S⧄ as well, some combination of stress and cuteness aggression; usually squeezing them or hugging them really tightly LOL.

S⧄ really are going through it in my sbmsverse… They kind of get picked on or relied on far too much, considering they are the youngest (and they're adults to be clear, like early to mid twenties, but they are still relatively young). G⧄ are trying to mould them to their own personal worldviews and preferences, treating them as proteges, and while A⧄ mean well, they are effectively doing the same thing in the opposite direction. A▽ relies on them a bit too much emotionally, using them as a sounding board for venting when they are trying to navigate their own issues, while A▲, like G⧄, has a tendency to see them as playthings sometimes, something to derive amusement and personal pleasure out of. I admit I am objectifying the hell outta them because they're cute LOL. My bad. I do think it would be cathartic if one of them to hit a breaking point and snapped about how confusing and othering it is to be used as leverage between the older twins. More notes on G⧄ and S⧄ below. Ganbatte S⧄.

G▽ secretly gives S⧄ estrogen because he thinks it will make them even cuter. A▽ is pissed off on their behalf, and tells G▲ to scold him, but G▲ shrugs it off because his perfect little brother can do no wrong. S⧄ honestly probably don't even notice until they start growing tits.

G▲ is obsessed with his own Emmet first and foremost, but his obsession does spill out into a fascination for the others as well. He has disdain for A▲, because of how worrisome and stressed out A▽ seems, and in his mind Emmet should never have to worry about anything ever. He tries to get closer to A▽, commenting that he looks tense and starting to massage his shoulders, and A▽, clearly very wary at first, takes a while before he starts to relax. "That feels nice, actually. Why would you do that for me?" And G▲ is taken aback by his question. "Because Emmet is my whole world, and that includes you." A▽ blanches a little. "When you say things like that, it's too intense. It sounds like a lie." G▲'s frown deepens. "That's not the case at all. I truly mean it, from the bottom of my heart." "Well… okay. Thank you regardless, Ingo." G▲ sighs. "Not 'big brother?'" He sounds disappointed. After a few for minutes of massaging, he offers A▽ something else to help him relax, saying that he had been given an aromatherapy sample. A▽ agrees, and G▲ promptly chloroforms him. When A▽ awakens, he's stripped nearly naked, tied up and gagged with a vibrator up his ass. G▲ is sitting nearby and perks up as A▽ starts struggling. "This always helps my brother calm down!" he informs him cheerfully.

G▲ is also weird to S▽ but more in the sense that he regards him like a doll. Much like A▲ does with S▲, G▲ likes dressing S▽ up or playing with his body. S▽ is genuinely intrigued and curious to learn more about sex and kink from him even though he finds G▲ intimidating. He also doesn't mind if it catches S▲'s attention and makes him jealous, either (S▽ himself is jealous over S▲ spending time with A▲). MMmm and brat-taming potential. I think S▽ has a mouth on him (honestly both S⧄ do), and G▲ is nothing if not lovingly strict.

G▲ to all the Emmets like "quit your job, join my evil sex dungeon" fr. G▲ would probably love to tie the other Ingos up and make them watch as he makes their Emmets come over and over again to show them how they ought to be treating them.

They all fuck, obviously. The older ones all adore S⧄, so they often get a lot of attention. They cling to each other, overwhelmed with pleasure and kissing each other and holding each other desperately. Honestly, their orgies are probably most pleasurable and efficient when they're focused on S⧄ like this, otherwise G▲ and G▽ would try to steal away A▽, and S▽ would be trying to keep A▲ away from S▲, and G▽ and A▽ would be at each other's throats, and yeah. It'd be a whole mess. Thank you for your sacrifice, S⧄.

Very common for one of the S⧄ twins to end up with either G⧄ or A⧄ as a third. Sometimes both S⧄ twins, for a foursome. Again, they love the S⧄ twins, they want to spoil them and teach them (in G⧄'s case, "corrupt" them lol).

It starts with G⧄ inviting the other twins to their place. S▲ is immediately wary. "I'm not interested in a sex party…" "It's nothing like that at all," G▲ cuts in firmly. "It's just a board game night and drinks, nothing special."

So they do end up coming over, lured in by the promise of Ticket to Ride, which is of course, a favourite of all of theirs. G⧄ have gone kinda overboard, dressing the part of old-timey train conductors as G▲ hands them prop tickets and G▽ takes their coats and offers them drinks. "Wow! This is so immersive! It's no surprise that G⧄ would go all out!" S▲ still seems suspicious, looking hard at the ticket in his hand before tucking it into his breast pocket.

Any air of suspicion is gone once they start playing though, because ALL of them get super competitive, especially the three Emmets. There's drama. There's sabotage. G▲ takes over refreshment duty because G▽ is way too invested in the game to take care of their guests.

About half an hour into it, S▲ realizes he's somehow ended up in A▲'s lap. No one points it out or even really seems to notice — nor do they seem to notice that S▲ has missed his last couple of turns, too out of it to insert himself. He feels like he should be embarrassed that he's falling asleep on A▲, but he's too comfortable and warm and fuzzy-headed to really care. The mood in the room has shifted as he glances around. The Emmets are definitely still playing, but there's a different sort of tension to their squabbling now. A▽'s hair looks even more disheveled than usual, and a few buttons of G▽'s shirt have popped open.

S▲ grumbles irritably at the others' commotion and nuzzles against A▲. He doesn't know how much time passes before he realizes he's suckling at A▲'s neck, but he certainly notices when A▲ lets out a soft moan under his breath.

Oh, shit. That's weird. He didn't mean to do that, why is he doing that? But he realizes after a moment that A▲ isn't the only one moaning. When he glances back at the Emmets, they're still arguing about the game, but they're a lot more physical about it. "Stooop, stoooppp, it ticklesss," S▽ mewls pitifully, his pants halfway down his thighs as A▽ teases his taint and balls. G▽ is rubbing and pulling on his soft pink nipples, making him cry out. "Cheating is not fun," he chastizes, and A▽ hums in agreement as one of his fingers teases S▽'s hole. "Cheaters get punished."

S▲ starts a bit at movement from his other side and turns slowly to see that G▲ has seated himself beside A▲ on the couch. He reaches over to ruffle S▲'s hair, making him whine. "I knew you were lying… this is a sex party." G▲ chuckles without smiling, his eyes glittering mirthfully. "Unlike my brother, I don't mind cheating a little. Isn't this a good way to have fun, too?" His hand trails down S▲'s back, tickling his spine right above the tailbone and making him squirm. He can feel A▲'s dick is hard against his thighs as he does.

G▲ seems amused. "Are you getting excited?" "Not a chance…" "Your mouth is lying, but your body is telling the truth." He reaches over to tug his pants down, revealing his tiny cock sitting erect between his thighs.

"Do you remember what the game was called?"

That hardly seems important right now, with S▲'s head spinning with arousal. "Tickets? Ticket… to ride?"

"May I see your ticket, then?" G▲ asks. His voice is smiling, even if his face isn't.

S▲ groans a bit in annoyance, but he leans back in order to fish it out of his pocket, handing it over to him in confusion. G▲ punches it and reaches over to slip it back into his pocket, before standing to strip himself of his pants. His own cock is also visibly hard, and even at half-mast it's much larger than S▲'s. S▲ can feel himself entranced at the sight of it, swallowing thickly as G▲ seats himself once more, his cock pointed proudly skyward.

"All aboard, then," he says, and S▲ clumsily slips out of A▲'s lap and into his. He gasps a bit as he feels A▲'s fingers sinking into his ass, stretching him out before he gets too ahead of himself.

"Do you think you're very clever?" A▲ asks G▲ in amusement as he leans in to kiss him. "Don't pretend it's not." "You've been spending a lot of time with Elesa, I see."

S▲ whines as he watches them kiss, and as A▲ far too slowly scissors his ass. No fair, no fair, they dragged him into this stupid mess and his cock feels hot and his body feels weird and they're not even paying attention to him!

He bats A▲'s hand away impatiently and raises himself up over G▲'s cock, sitting upon it and sheathing it inside him in one determined movement, gasping and reeling a bit at the stretch in his entrance and the new weight inside him. This does, at least, successfully get G▲'s attention, as he gasps into A▲'s mouth and tears himself away in surprise.

"Check safety first!" he scolds, but S▲ is already riding his cock himself, raising himself up onto his knees before sinking back down, over and over and over. A▲ laughs. "You were the most opposed, but you seem to be enjoying yourself the most now." S▲ ignores him.

Pretty soon G▲ is matching his rhythm, holding his hips as he bounces S▲ in his lap, and S▲ starts to babble incoherently. G▲ finishes quickly, filling S▲ with cum. S▲ likes the feeling, but he hasn't found his own release yet, so he squirms and whines, trying to push himself down onto a cock that is quickly softening inside him. G▲ seems amused. "Your ticket includes a return trip, you know," he says, gently lifting S▲ off of him and coaxing him back over to A▲ with a knowing look. A▲ scoffs a bit, but he takes S▲ and plops him into his own lap.

S▲ instantly curls around him, hugging his neck and trying to wrap his legs around him. G▲ says it's cute, but it's evident that he's a little jealous. A▲ praises S▲, telling him he looks extra beautiful right now. S▲ whines. "I look the same as always." "Exactly," A▲ counters easily.

When A▲ starts thrusting up into him, S▲ mewls loudly in ecstacy, catching the attention of the Emmets from where they're having their own orgy. "Ah— the little one joined in after all. He is cute when he is enjoying himself," G▽ says. A▽ winces a bit. "Ow— I thought my Ingo was loud…" S▽'s mouth is too preoccupied from where he's being spitroasted between them, but he probably wouldn't have been able to get a word out anyway, seeing as he's pretty deep in subspace at the moment.

S▲ comes with an animalistic cry, his nails scoring red hot lines into A▲'s back; A▲ comes soon after, his and G▲'s cum filling S▲ to the brim. S▲ is still moaning wordlessly under his breath as he comes down from his orgasm, shivering and clinging to A▲.

"Where's Emmet?" S▲ finally asks when he can form actual words.

"He's just over there," A▲ assures him.

"I wanna see him."

"He's a little busy right now."

"I wanna see him."

A▲ relents and shakily gets to his feet, carrying him over to the others and laying him gently onto the rug beside his brother. S▽'s mouth has been freed at this point, and the two of them immediately move towards each other, kissing and moaning and clinging to whatever they can reach. A▽, his cock still inside S▽, slows a bit as A▲ reaches over the younger ones to kiss him as well.

"You mouth tastes gross," S▲ complains. S▽ stammers out an apology, which S▲ quickly cuts across. "It's okay. You look cute when your belly is full of cum like that… so I'll forgive you." S▽ seems delighted by this, wriggling happily and deepening their kiss.

A⧄ are cooing over them adoringly. "Wow~ even with all of their bickering, they love each other a lot, huh?"

Meanwhile G▽ has slunk back to G▲'s side, burying his face into G▲'s crotch to clean his dick with his mouth; he's already getting hard again. "Have you been enjoying your playdate?" G▲ asks, his voice dripping affection as he strokes G▽'s hair reverently. G▽ whines around his cock and G▲ chuckles knowingly. "Of course. You've been very patient. You deserve a reward." G▽ nods eagerly and G▲ grips his head to face-fuck him. It's not long before he's coming down G▽'s throat, and G▽ dutifully swallows every drop.

Ingo, internal dialogue, gazing at Emmet: He's so nice... just this is nice...

Ingo, internal dialogue cont.: I want to do this every day, we should get married...

Ingo, internal dialogue cont.: Wait- Married???

Emmet: Ingo? You okay?

Ingo: WE NEED TO KILL OURSELVES.

Emmet, stunned silent:

If Ingo wants sex right after work to relieve stress, Emmet has to obediently offer himself up (or during work). If Ingo feels like touching and teasing Emmet while poor Emmet is trying to cook, Emmet just has to endure it (my headcanon is that Emmet isn't as good a cook as Ingo, so Ingo definitely doesn’t make the task any easier lol). And if Emmet fails at cooking or makes mistakes… well, of course that means a little punishment~

//

Not that they don’t already have a somewhat similar dynamic going on, but like brothers usually do, they still have disagreements and Emmet can definitely be selfish sometimes.

But in the maid role, Emmet has to set his own needs completely aside and serve Ingo~ and I don’t just mean sexually. I still think Ingo secretly craves to take care of Emmet but he’s absolutely going to take full advantage of the situation anyway, hehe~

Emmet might feel embarrassed and awkward at first, but (like always) he’s weak to Ingo’s praise so it becomes much easier for him to sink deeper into his new role. ♥ //

I actually have more deeper/softer thoughts about this reversed roles thing.

In short, maybe Ingo starts thinking about his own needs more and remembers how good it feels to be completely taken care of. For example, when Emmet is giving Ingo a massage, Emmet is surprised by how quiet Ingo becomes and gets worried at first. But Ingo reassures him that he’s just that relaxed and that he’s genuinely enjoying the moment.