Chapter Text
You’d seen pictures before, of course. And talked this all over with Yuuji beforehand. But nothing could prepare you for how big your boyfriend’s “soul brother” really was. Todo is a mountain in your living room, and you can't tear your eyes away from him.
Everything about him is big, his height, his build, his voice. It isn't necessarily unpleasant, but it commands your attention. While he laughs away catching up with Yuuji, you're stuck trying to grasp how someone who looked like that could also be so… normal? Well, normal for sorcerer standards anyway. Yuuji warned you that Todo was eccentric, but he seems like a genuinely good and dependable guy.
“Back in my first year when all the other Kyoto students were trying to kill me, Aoi took me under his wing. He’s saved my life more than a few times,” Yuuji had told you back when you first asked about the hulking shirtless guy in some of his high school photos.
So even if he is a little… intimidating to look at… you know that anyone Yuuji trusts with his life must be an incredible guy. Todo is staying with you two for a few days, and you're bent on repaying him some of the kindness he has paid your boyfriend.
As soon as your initial shock fades.
-
“Hey, babe, I’ve got to run to the bathroom. Do you mind showing Aoi to our guest room?” Yuuji asks, glancing at your living room clock. “Sorry, I didn’t realize how late it was getting.” He stands up to walk into your bathroom, flashing a smile that says “now’s your chance to get to know him”.
“Sure, yeah. Uh… Follow me, Todo-san.” You stand up from the couch as well, waiting for Todo to rise from his chair.
“Just call me Aoi!” he says, good-naturedly. “Any girlfriend of my brother is family to me!”
“Ah. Okay. Follow me, then, Aoi.” He smiles at you when you use his given name, then exchanges a little glance with Yuuji. It looks pleased?
I guess Yuuji must want us to get along, you think.
“Awesome! Babe, I’ll meet you in our bedroom when I’m done… uh… going to the bathroom and all that,” your boyfriend seems weirdly nervous.
He must really want us to get along.
“See you tomorrow Aoi!” He calls out, then rushes into your shared bedroom, heading for the bathroom.
“Yes! I’ll see you when we wake up, brother!” Aoi calls after him. Then he turns to you. “Thank you again for hosting me. Yuuji and I have both been so busy that it’s been hard for us to find time to catch up.” He smiles at you, a softer and more intimate one than the big boisterous one he had earlier.
“It’s no big deal,” you reply while guiding him to the guest room. “You’ve done so much for Yuuji that this is the least we could do.” You smile back at him. It feels… a little awkward, talking to Aoi without Yuuji present. But it's not bad. Just the normal awkwardness of meeting a mutual friend.
Aoi reaches the guest room, placing his bag down on the bed. “Is there anything I can grab you before we all go to bed?” you ask, wanting to play the part of the perfect host.
“Well, if it’s not too imposing, I’d love a glass of water.”
“Of course! I’ll go grab you one right now! Make yourself at home while I grab that real quick.” you rush out of the guest room and to the kitchen, quickly grabbing a glass and filling it up with some water. I should have thought of this beforehand, you scold yourself.
You walk back to the guest room, glass in hand. Before entering, you knock on the door.
“Come in!” Aoi says from inside.
You open the door handle and find yourself facing a shirtless Aoi. You find yourself blushing, his physique has only gotten more defined since high school (of course it would have), and he looks just as big shirtless as you thought he would. While you’re embarrassed, Aoi seems completely unphased, if a little amused.
“Thank you!” he calls out.
“Y-yeah. No big deal,” you squeak out before retreating to your bedroom. “Sleep well!” you manage to get out behind you.
“You as well!” you hear before closing your bedroom door. Yuuji is already in bed, waiting for you. He pounces on you with questions as you get ready for bed.
“Isn’t he great?!”
“Yeah, he seems like a great guy, Jiji.”
“He’s the best!”
And so on and so forth until you finish your evening routine.
When you finally get into bed, Yuuji is buzzing full of nervous energy. You crawl up next to him, ready to pass out from the exhaustion of meeting a new person.
“What… Uh… What did you think about him?” your boyfriend clips out.
“Like I said, he seems like a great guy.”
“Yeah yeah. But… besides that?”
“Um…” You rack your brain to try and think of something else to say. You didn’t get to talk to him that much. “He’s… big?”
Yuuji lets out a little laugh. “Yeah, he’s big. Do you… do you like that?” The nervousness in his voice is back.
“It’s not… bad? I’m just worried that he’ll be too big for our guest bed.” You’re unsure why Yuuji seems so wound up, It must just be the nerves of introducing his girlfriend to his soul brother. But the bouncing energy feels like more than that. “Is something… up?”
Yuuji looks at you with wide eyes before blushing a little bit. “No no! Nothing’s up! Everything is good and normal!”
Something is definitely up. But you decide not to push it tonight. “Alright. Good night, love.” You give him a little kiss on the cheek before falling asleep with your arms around him.
-
The next morning, you wake up to find Aoi already in the kitchen, shirtless again, preparing breakfast. His back muscles flex as he moves around, and you can't help but steal glances while pretending to focus on your morning routine. His physique is… impressive to say the least. Yuuji is still in bed, and you have the apartment to yourselves for a moment.
As you enter the kitchen, Aoi greets you with a warm smile. "Good morning! Sleep well?"
"Yeah, thanks. You're up early," you reply, trying to keep your tone casual. Aoi chuckles, his deep voice resonating through the room.
"I'm an early riser. I like to meditate before starting my day. Yuuji, on the other hand, needs a bit more beauty sleep," he says with a playful wink. You laugh, feeling a subtle tension in the air.
“I could have made breakfast, you’re our guest.”
“That’s alright! I’d hate to give my host any more work.” He replies, smiling down at you.
While making breakfast, the conversation turns to Aoi. He shares stories from his past, and you find yourself genuinely interested in him and his life. Especially the stories about him and Yuuji. When you move to start cleaning the dishes and set the table, his eyes linger on yours a little longer than usual, and you notice the way he occasionally brushes against you as you both wash and dry the pots and pans.
The weird touching spell is broken the moment Yuuji enters the kitchen - “What? You guys made breakfast? Sweet!” - and you choose to not think about it anymore.
-
But as the day progresses, you and Aoi find yourselves alone more than once. Yuuji keeps coming up with excuses to leave the two of you alone together. Perhaps you’d need to sit down with him and ask him what was going on - no way his bladder could be this active.
In one of these moments, you’re talking to Aoi when he moves closer, and there's a charged silence between you. You can feel the warmth radiating off his body, and his proximity sends shivers down your spine.
"Yuuji talks about you a lot," he says, his voice low, more intimate than it needs to be for a comment on Yuuji’s commitment to you. "He cares about you a great deal."
You meet his gaze, "I care about him too."
Aoi takes a step closer, and you become acutely aware of the sexual tension in the air. Which is strange, since you are discussing your relationship with Yuuji. You feel a little guilty about it. Aoi reaches out to tuck a loose strand of hair behind your ear, sending a jolt through you.
"Maybe we can find a way to show him just how much you care," he suggests, a mischievous glint in his eyes.
The tension lingers, building a magnetic connection between you and Aoi. It's a dance of desire, unspoken but understood. Then you pull away, feeling guilty.
“I don’t- I don’t know. I’m not… Yuuji’s never…” you reply nervously. As fun as it sounds, Yuuji is your boyfriend, your number one and you don’t want to betray his trust or hurt his feelings by having this weird sexual tension with his best friend.
“It’s alright,” Aoi responds, a smile on his lips. “I just thought I’d let you know that I’m okay with it.” He pats your shoulder and then walks out of the room, presumably to find wherever Yuuji wandered off to.
-
At the end of the day, you find yourself getting ready for bed when Yuuji calls you into the living room. “Hey, babe, can we talk about something?” He seems nervous.
You fear that Aoi told him about the weird sexual tension between you two before you could, and feel a sense of dread in your stomach thinking that it would hurt his feelings.
You walk in to find Aoi glancing at Yuuji, and there's a silent exchange between them. They've obviously been discussing something. The pit in your stomach deepens before Yuuji starts speaking.
"Hey, there's something we've been thinking about," he begins, his tone careful. "We were wondering if you'd be open to exploring something a little... different."
You furrow your brows. You think you know where this is going, but don’t want to jump to any conclusions. "Different how?"
Yuuji looks at Aoi, silently giving him the go-ahead to explain. Aoi takes a moment before speaking, "We were thinking about... well, about the three of us, you know? Sharing something special together."
The air in the room shifts, and you process their words. A threesome. You glance between Yuuji and Aoi, gauging their expressions. Surprisingly, there's no tension or awkwardness.
Yuuji reaches for your hand, his gaze sincere. "We've talked about it, and we both want to make sure you're comfortable with the idea. It's not something we're pushing; we just thought it could be… exciting."
You take a moment to absorb their proposal.
"Babe, was this your idea?” You ask, turning to Yuuji.
“Uh.. yeah,” Yuuji responds, embarrassed. “I just thought that, I don’t know, it might be fun? And you’re the most beautiful girl I’ve ever known and Aoi is my best friend. I couldn’t think of anyone better to do this with.”
“Is that what all your cryptic comments have been about? And why you kept leaving us alone together?”
Yuuji blushes again before rubbing his neck sheepishly. “Yeah, sorry. I just, I wanted you to come to your own decision about him before suggesting anything. You know, so I wasn’t pressuring you.”
You feel the sense of guilt washing away, knowing that Yuuji was not only okay with the sexual tension between you and Aoi but seemed to have orchestrated it. “Oh my god, I felt so terrible for feeling attracted to him!”
Yuuji perks up a bit at your response, “So you're attracted to him?” He glances between you and Aoi, where Aoi looks pleased.
The atmosphere in the room lightens as the truth unfolds.
You giggle, feeling a mixture of relief and amusement. "Well, it's hard not to be when he's practically shirtless all the time and giving me those looks."
Aoi joins in the laughter, his expression playful. "Can you blame me? You're gorgeous."
Yuuji grins, the embarrassment fading. "See? I knew you two would get along."
You take a moment to process the situation. The realization that Yuuji not only noticed the connection but encouraged it brings a newfound sense of reassurance. "So, you orchestrated this whole thing?"
Yuuji scratches his head, admitting, "I might have nudged things in that direction. But only because I thought it could be something we all enjoy."
The sincerity in his eyes is undeniable, and you find yourself smiling. "Well, you could've just said so instead of being cryptic." Then you turn to Aoi. “And you! All that strange flirting and coming on to me! You should have just told me. I felt like a terrible girlfriend!”
Aoi chuckles, "Where's the fun in that?” Then he changes his tone to be a little more serious. “But seriously, we want to make sure you're comfortable with the idea. No pressure and we'll respect whatever decision you make."
You take a deep breath, considering the proposal. The tension has transformed into a mix of curiosity and excitement. "I appreciate the honesty. I need some time to think about it, but... I'm not completely against the idea."
Yuuji and Aoi exchange a glance, a silent acknowledgment of your response. "Take all the time you need," Yuuji says, squeezing your hand.
You all wrap up the night before heading to bed, tension now zapping through the air. You know you’ll have to come up with a response soon, and, honestly, it would probably be in the affirmative. But you need to make sure it won’t change your relationship with Yuuji.
As you crawl next to him in bed, Yuuji turns to you. "Hey, about earlier... are you okay? I didn’t mean to spring it on you, I honestly thought you would have figured it out right away."
You take a deep breath, appreciating his sensitivity. "Yeah, I'm okay. Just thinking."
Yuuji reaches for you, wrapping himself around you. "You know, whatever you decide, it won't change how I feel about you. Our relationship comes first."
You look into his eyes, finding reassurance in his gaze. "I appreciate that. I love you, Yuuji, and I trust you. I just need to be sure this won't alter what we have."
He nods, understanding. "It won't. We'll only proceed if you're comfortable. No pressure, no expectations. Just us, together."
The room is filled with a sense of vulnerability and openness. Yuuji leans in, placing a gentle kiss on your neck. "I'm here for you, no matter what."
You feel a mixture of emotions—love, trust, and a hint of excitement. The prospect of exploring new dimensions in your relationship becomes less daunting, knowing that Yuuji is by your side.
“Okay, then let’s do it.”
“Really?” Yuuji says, excited by the prospect.
“Yeah. I just… didn’t want anything to change. That was what was holding me back. But I trust you, and I trust us.” You pause before adding: “Plus… Aoi has, like, a really nice body.”
Yuuji giggles into your neck at that. “Yeah, he does.” Then he asks jokingly, “Better than mine?”
“No way. It’s nice, but you’re more my type,” you smile. “Goodnight, Yuuji. I love you.”
“I love you too,” he says, then you both fall asleep.