Guess which dumbass saw a super cute art on twitter (twitter, zer0zon/status/1104602941451722752) and is now writing more for a ship no one is interested in reading~ :D

Also seeing that and writing this means I realized that I may be adding random timestamps to this fic here and there rather than doing any sequel(s) as New Story(s).

'Abricate' is an old word that means 'basking in the sun'. I went looking for a word that meant that when I was trying to find a title for the original fic, expecting there to be a weirdly specific German word for it or something, and imagine my surprise when I found an English one!

CHAPTER SUMMARY: Before Ritsu could speak, Mob was crawling right into his lap and face-planting in his neck, blanket settling over Ritsu's legs.

ADDED TAGS: Timestamp, Time Skips, Psychic Abilities, Psychic Kageyama Ritsu, Awakened Kageyama Ritsu, Powered Kageyama Ritsu, Psychic Sex, Sex Magic

CHAPTER 2 - STRESS

Some part of Ritsu has always just known when his brother got home. Before his powers woke, before he presented alpha, some part of him had just known, even if he hadn't understood how he'd known. In the years since his powers had awakened though, he'd come to understand that every fiber of his being was simply attuned to Mob's powers, and that he'd been able to sense his brother's aura washing over him. He could feel it now, could feel the way it touched upon everyone and everything in their house, a reflex to make sure everything is as it was. As had been habit for the last several years, his immediate reaction was to return the gesture, but before he could, Mob retreated, his aura neatly packing away.

Ritsu sat upright, immediately on guard, book in his hand forgotten. His eyes fixed on his open door, waiting, watching. Mob appeared after a minute, trudging up the stairs in his slippers, head down.

"Nii-" Ritsu started to call out, but Mob didn't even look at him as he shuffled by. He frowned at the empty doorway, and was still frowning when their mother came up, pausing at the top of the stairs and frowning down the hallway. Which means that Mob hadn't acknowledged her either.

She turned and looked at Ritsu, a silent question, and he shrugged, just as lost. He hadn't heard from Mob all day and as far as he knew, there wasn't anything going on in his brother's life of late that warranted this kind of reaction. Her head turned a moment later at the sound of a door opening, her mouth opening like she was going to speak, but Mob walked right by her, shuffling into Ritsu's room in shorts and a t-shirt, trailing a blanket. Before Ritsu could speak, Mob was crawling right into his lap and face-planting in his neck, blanket settling over Ritsu's legs.

Ritsu looked at their mother, who was making an enthusiastic 'go on' gesture, and then down at his brother. "Are you alright, nii-san?" he asked softly.

He tried to scent the air, hoping to catch a whiff of his brother's mood, but Mob had hidden his scent along with his aura, and it was almost like he wasn't there. The alpha part of Ritsu was restless at the absence of scent when he had his omega sitting right there in his lap, but the logical part of him was well used to it. His brother had gotten a lot better about letting himself feel and emote in recent years, even as his powers continued to grow, but he'd grown up hiding himself and sometimes he still had trouble with it.

There was a deep inhale at his throat, a pause, and then a slow exhale. A barely-there shake of Mob's head.

Ritsu looked back at his mother and frowned when he saw her straighten almost unnaturally. And then he saw the dead look in her eye and the slackness to her jaw before she turned and walked silently back down the stairs. Like a marionette. Stunned, he looked back down at his brother. This was… unprecedented. Mob never used his powers on their parents.

"Do you need me, nii-san?" he asked, slowly raising his hand and tentatively cupping the back of Mob's neck.

There was another pause, and then he felt his brother nod. Just barely, but it was there. And for it to be there at all meant, for Mob to be so closed off and not speaking, for Mob to have used his powers on their parents, meant that he was hanging on by a thread.

"I've got you, nii-san," Ritsu assured, tightening his hold on the back of his brother's neck, the firm hold making Mob relax just a little more against him.

Ritsu had hit his growth spurt his third year of middle school, and now he was even taller than their father, but Mob never seemed to really hit his. He'd grown steadily a centimeter or so every year, but his head had never even reached Ritsu's shoulder. Mob had never given any indication if he was displeased by his younger brother growing so much taller than him, but Ritsu's alpha side was continuously pleased by their height difference, the way his omega fit so neatly against him.

The book in his hand went face down on his desk and Ritsu carefully lifted Mob with the help of his powers, raising him off his lap so he could undo his jeans and stroke his cock to life. When he reached for the waistband of Mob's shorts, a tendril of power breezed across the head of his cock and there was a shift of air before he felt the heat of Mob's hole. The seat of his brother's shorts had been neatly unthreaded at the seem, and though it made for convenience, the use of power for something so trivial only served to increase Ritsu's concern.

He slowly lowered Mob onto his cock and back into his lap, and found himself sighing at the relaxing sensation of wet heat wrapping around him. It was almost like coming home, for Mob's body had been a source of comfort for Ritsu his whole life. He wondered sometimes what their relationship would have been like had Mob been born powerless - would they have ended up in love at all? Would their love been as passionate and energetic as most alpha/omega relationships were? He had no way of knowing, and though he wondered, he never missed what they never had. Some alphas might revel in their fiery relationships, but Ritsu liked the calm that came with being with Mob.

The blanket over his legs had slipped and he drew it back up over Mob's waist and tucking it behind him between his back and the back of his chair. Just in case Mob's powers wavered and either of their parents came back. It was unlikely, but still, they hadn't remained undiscovered for this long because they lacked caution. It was good fortune as it was that so many omega siblings found tactile comfort in their alpha siblings, and vice versa, even long into adulthood - no one would ever think twice about Mob cuddling with him or with him scenting his brother, as long as he didn't take too long doing it.

Mob hadn't moved from his slouch against Ritsu's chest, and his breathing was steady, but his cock was slowly hardening against Ritsu's belly. Ritsu squeezed the back of his neck once and then started to gently stroke Mob's back, encouraging him to relax. Long minutes passed, but there was still a tension to Mob. No one else would have been able to tell but Ritsu, not even their parents. But their parents hadn't spent their whole lives looking out for Mob, hadn't spent years knotting Mob in the dead of night or during Mob's heats when the house was empty.

"Do you need my knot, nii-san?" he finally asked. It was a last resort for the situation, especially since their parents were home, even if they were currently under the influence of Mob's powers. But Mob still hadn't relaxed and he was still holding his aura and scent locked inside his skin.

He didn't get a nod this time, but the mouth at his neck parted and he felt the barest of touches of the tip of Mob's tongue to his skin and heat flashed through his body, his cock suddenly throbbing with need.

"Of course, nii-san."

It was going to be an even less conventional coupling than usual, but he'd spent his life striving for his brother's happiness because when Mob was happy, Ritsu was happy. He'd never used his powers like this before, but there was a first for everything. And the first stroke of his powers around their cocks had white fuzz rolling up his spine and Mob inhaling against his throat. Ritsu dipped his head to his brother's neck and nipped gently at the soft skin as he did it against, and he felt satisfaction curl in his chest at the tremor that went through Mob.

Fucking his brother without moving a muscle was an odd sensation, but there was something so comforting about it, about being able to wrap his arms around his brother and get them off without having to separate from him for even a second. With every stroke of his powers he could feel his knot starting to swell, but more importantly, he could feel the way Mob shivered with every phantom touch. He could feel the way that vague almost-undetectable tension in his omega's smaller body start to unspool. And because he didn't have to move his face from Mob's neck, because he didn't have to move his nose from Mob's scent gland, he could scent the very second Mob's scent started to return to his skin.

The first whiff of that familiar scent of abrication set off a pleased growl in Ritsu's chest, and he got to feel the moment it hit Mob - a sharp stuttered inhale against his neck and a sudden clench of muscles around the length of his cock. But then the subtleties of emotion tainting the sun hit him and he went tense at the faint threads of stress in his omega's scent. He began to purr in earnest, pushing as much 'comfort' into his scent and aura as he could, not letting up even when he felt a soft sigh against his throat.

It was tempting, to remain this way, to keep Mob in his lap as he stroked them with his powers, keeping them on the edge of orgasm as afternoon gave way to evening, but this wasn't for him, this was for Mob. And he knew Mob wasn't going to fully relax until he was knotted and filled with Ritsu's come. He slowly increased the grip and speed of his powers, carefully keeping the pace from becoming to fast, and when he first felt tentative whisper of Mob's aura against his, he opened his mouth and set his teeth to Mob's neck.

Just the barest hint of a bite was never enough to get Mob off, but the shortening of breaths against Ritsu's neck was like a scream of pleasure from his brother. So he carefully increased the pressure until he knew Mob's delicate skin would bruise from his mouth, hyper aware of how close he was to breaking the thin layers keeping him from Mob's scent gland. He wanted to bite. He wanted to sink his fangs in and mark Mob as his - had since he presented and would until he died, but he couldn't, not until society allowed it (not that it ever would). He'd even gotten better at controlling the needs of his alpha side over the years, and he employed it now, letting the barest hint of fangs touch against Mob's skin. And that, that was all it ever took to get Mob to come.

Ritsu's ears rang with the little whimper Mob let out against his neck as wet heat soaked the front of his shirt and he had to close his lips over his teeth to keep from biting down as Mob finally relaxed into his orgasm and into Ritsu's body. His mate's scent washed over him, through him, into him. carrying him across the finish line and into his own orgasm. He spilled into his brother's heat, his knot swelling and filling his brother full of him, a pressure against Mob's prostate making his omega shudder and come again, muscles rippling around Ritsu's cock, a familiar chain reaction that settled something in Ritsu's chest.

Sound came back to him slowly, an awareness of the silence of his room tempered by the faint sounds of their parents downstairs, the cicadas outside, the soft breaths against his neck. He barely kept himself from grimacing at the echoed thought of 'mate' - he knew it would never be, could never be, but that feral part of his brain that took over when his instincts were at the helm was absolutely set on the notion. He had no idea if Mob felt the same way, and he both feared and hungered for the answer.

Mob's scent filled his lungs when he took a deep breath against his neck, and Ritsu was pleased that his brother hadn't hidden it again after he'd come. Though, that pleasure was tempered by the stress in Mob's scent, faint in the way that all his emotions were, even now. But the fact that it was there at all meant that his brother was really feeling it, and Ritsu racked his brain with the potential cause.

"Would you like to talk about it?" he finally asked, pulling away from Mob's tempting throat, voice soft to keep from disrupting the room's calm. He tempered the offer with a renewal of the gentle rub of his hand in circles on Mob's back and waited to see if his brother would match his body language, waited to see if Mob would meet his eyes.

His omega shifted in his lap, not in an attempt to sit upright, but more like a little wriggle to get closer to Ritsu. It was a barely-there movement, but it was enough to send an orgasmic aftershock through Ritsu's still-hard cock and enough to make his hand twitch on Mob's back. There was just enough of a shift of the lips at Ritsu's neck and enough omega satisfaction in Mob's scent for him to know that his brother had done it on purpose, but Ritsu forced himself not to respond any further. Hs selfless-to-a-fault brother had the absolutely awful habit of deflecting inquiries of assistance when he needed them most.

Silence followed, one in which Ritsu could almost feel his brother's internal argument. All he had to do was wait it out though - once his brother stopped actively rejecting the idea of sharing a thought, it was only a matter of time until he voiced it.

"Entrance exams," he finally said, and Ritsu blinked in surprise.

Not only had he somehow not been aware that Mob was planning on attending university, but Mob had never been stressed about exams in his life. Had Ritsu been neglecting his mate- his omega? Had he not been paying enough attention to his brother? He would need to fix that, figure out where he'd been slacking as a brother and as an alpha, and renew his attentions. Make sure that Mob knew, to the bottom of his heart, that there was not anything Ritsu wouldn't do for him.

"Why don't you take a nap while we wait for my knot to go down and then you can start studying with me, how does that sound, nii-san?" he offered, hoping Mob wouldn't reject his offer like he'd done more times in the past than he'd accepted it.

"I don't want to impose…" Mob said trailing off, and Ritsu's heart skipped a beat - any and all lack of outright 'no' when it came to Mob was a 'yes'.

"I wouldn't have offered if I thought you were going to be," Ritsu lied with a soft laugh. "Plus, helping you study for your entrance exams will give me a head start on mine next year." Not that he needed it when he was already one of the top of the nation, but sometimes helping Mob required a little bit of manipulation, tricking him into thinking he was helping Ritsu when really it was the other way around.

At long last, Mob pulled his face out of Ritsu's neck and sat back, though his head remained bowed. The shift in weight and in muscles around his knot sent more heat up Ritsu's spine, though this time he hid the tremor in his fingers by lifting them from Mob's back and settling them on his brother's thighs. And when Mob didn't immediately speak, Ritsu gave into temptation to dip down and press his lips to Mob's, immediately feeling vindicated when his omega's mouth opened to him and he licked his way inside.

As always, Mob's tongue was hesitant against his, but Ritsu was well accustomed to his brother's tentative affection. All he had to do was kiss slow and deep and soft and Mob melted against him, hands finally lifting from where they hung at his sides to press against Ritsu's ribs, fingers curling carefully into his shirt as if Mob was afraid the cotton was going to rip.

When he finally pulled away, only far enough to separate their mouths but still close enough that he could press his forehead to Mob's, his brother finally looked him in the eye. It was a shy contact, as shy as the smile that curved his omega's soft mouth, but they were there are all the same, and that was enough for him.

"Thank you, Ritsu," Mob finally agreed.

By now, Ritsu was an expert in all the things his brother didn't say, and he knew it wasn't just his study assistance that he was being thanked for.

"Of course, nii-san," Ritsu assured, sitting back and pulling Mob back into his chest, his omega's nose settling in against his throat. "Any time."

Mob fell asleep almost before Ritsu had finished speaking, breath slow and steady against his neck as Ritsu reached for his discarded book. It had only been a week since Ritsu had knotted his omega last, but maybe that was too long if his brother was this tired and this stressed. Maybe it was time to start knotting Mob every night, see if that helped. He turned the page and settled in for the long haul, wrapping his free arm around his brother, tucking the tips of his fingers in the waistband of Mob's shorts to keep his hand anchored at the small of Mob's back. Against his throat, Mob snuffled sleepily, relaxing further into Ritsu's body, and Ritsu began to purr.

Maybe before they started studying, he should knot his mate again.

One more time.

...Once or twice.

Just in case.

FIN

So, just like last chapter, I don't have any plans to write more, but apparently all I have to do is see an art and one of my muses will just fucking slap me.

Don't forget: Like the thing? Reblog the thing (themadkatter13fanfiction tumblr, tagged/Brother (Mine)).