Weaknesses, Asuna's Sorta Lost her Mind

ALheim (ALO)

Asuna had the end of Sinon's tail held in both hands and pressed against her cheek, giggling and flat-out refusing to let Sinon go. Hence why Sinon has messaged him and was now tugging on her tail while trying to escape Asuna's grasp.

"Kirito do something!" Sinon managed to escape Asuna's lucid grasp and started to run around the plaza, her tail streaming behind her. Of which she flicked repeatedly to avoid Asuna's outstretched hands as she chased her. "Asuna! Q-Quit it!" Sinon almost meowed, "eep! Asuna! Cut it out!"

"Sinon come back!" The blue haired Undine chased the Cait Sith around with faint giggles coming from her mouth, "You don't have to run!" Asuna was surprisingly fast for her only half lucid self and was easily catching up with Sinon. However, her brain was running just a little slow and she stopped every time she went to snatch Sinon's tail. That pixie's dust, causing the Amosphere to fire random neurons in her brain to stimulate a hallucinating effect, combined with an already sleep deprived Asuna of the number of tests and stuff going on in the real world made a very goofy, giggly, and weird acting Asuna.

Kirito registered the others watching from the nearby inn with their hands over their mouths in laughter, but couldn't tear his eyes away from the odd sight in front of him. Who was Asuna really and where was the girl he knew? And more than that, he had never seen Sinon blush as much as he was right now. It wasn't uncommon for Asuna to have a blush painted over her light-skinned cheeks with how easily embarrassed she got, but Sinon was usually such a calm and serious person, a blush was a rare sight indeed.

"Come on Kirito! D-Do something!" Sinon yelped and ran faster, "Asuna! Leave my tail alone!"

"I'm… not sure I want to be involved in this," Kirito admitted with a scratch to the back of his head, "given what happened the last time I came near your tail Sinon."

"I don't care!" Sinon yelped again, "Asuna! Eek!"

"Go on Kirito!" One of the others, likely Liz by the sound of her voice, "save Sinon from your loopy girlfriend!"

Kirito hesitated some more, onyx-colored eyes following Sinon and Asuna around the plaza as he hesitated. He knew a way to get Asuna to leave Sinon alone, but it could backfire with the crazy state she was in.

However, when Sinon actually meowed and Asuna managed to grab Sinon's tail and yank her backward, Kirito sighed.

"Fine…" Kirito mumbled and walked toward the now stationary pair, Sinon struggling to get free while Asuna was giggling like mad. "Asuna," he spoke as he walked closer and was surprised to find no response. "Leave the tail alone."

Instead, Asuna seemed to giggle even harder and pushed her cheek against Sinon's fluffy tail.

"Kirito if you don't help me I'll shoot you!" Sinon practically screamed, her face red with embarrassment and rage, "so get your sorry butt over here and help me!"

Kirito gave up keeping his dignity in favor of not being shot in the face by Sinon and hurried over, "Asuna leave it alone." Kirito awkwardly approached Asuna and Sinon and rested one hand on Asuna's head from where she was half crouching with Sinon's tail. "Honey…" He cleared his throat after the pet name, now clearly uncomfortable when the rest of their friends started giggling or laughing at him, "leave it alone."

"Honey?" Klein echoed with a slight cackle of glee, "this is priceless!"

Kirito bowed his head in embarrassment and tried once again to get Asuna to release Sinon with mainly just his words while moving to pull Sinon's tail away from her. "That's Sinon's tail hun, you're bothering her."

"Don't you dare touch my tail Kirito!" Sinon shrieked when Kirito's hand lightly touched her tail as he moved to pull it from Asuna, "you pervert!"

Kirito, his face now red from calling Asuna multiple pet names to break her out of her fluffy tail induced curiosity and their friends' laughter, seized Asuna by the shoulders almost painfully. Asuna's face then was pressed against his collarbones as Kirito tried to wrestle Sinon's tail from her grasp without actually touching the tail.

"No Kito!" Asuna whined and refused to let go of Sinon's tail, "let me go!"

Kirito felt like he was going to die from embarrassment by now, this was the last time he let Asuna near any of those hallucination pixies, and flat out gave up at Sinon's next yell.

"Kirito!" Sinon shrieked before giving a semi pained meow, "Asuna let go of mee!"

Kiro released Asuna's hands and instead, he threaded his fingers in her blue hair just beneath the braid at the back. An unknown weakness in her specifically.

Immediately Asuna looked drowsy and she released Sinon's tail as Kirito gently pulled his fingers through her long blue tresses. The Undine slouched against Kirito and her knees buckled, making Kirito quickly kneel on the ground. She half shut her eyes, making a soft and rather sleepy murmur as she shifted her position to be leaning sideways against Kirito's body.

Kirito noticed vaguely that Sinon hadn't moved away and was sitting on the ground on her tail, staring at him in shock and surprise. However, he had his attention focused on the now mostly asleep Undine in front of him. Now what? He hadn't really thought of what to do after this point. Asuna would be asleep, incredibly hard to wake and he still had to go past their not gobsmacked friends, through a teleport gate and town. While his strength parameter was incredibly high, his dignity and pride were already taking a beating without their friends laughing at him and following him as he teleported and then flew to their cabin on floor twenty-two.

This weakness thought he had found by accident back in SAO, he had been playing with her hair while she talked to Liz at Liz's shop when he had just poked her in the back of the head to playfully whine about how long it took her to actually leave the place.

Asuna's amber eyes abruptly glazed and the Vice Commander of the KoB quickly steadied herself against Liz's nearby anvil, like she had just had some kind of dizzy spell. "Kirito stop it," even her voice was laden with sudden sleep, "help me out here Liz…"

Kirito quickly backed off even though Liz just smirked and put her hands on her hips. He didn't want to face a protective Liz in a shop literally full of weapons. "Sorry, what did I do?"

Liz laughed and helped Asuna stand, holding her there while the caramel haired girl wobbled slightly. "You don't know yet? Asuna you didn't tell him?"

"No, and I didn't think I had to," Asuna huffed, her voice was less drowsy now and more alert. "Don't you dare," she warned her friend.

Liz ignored her words and with a smirk, lightly tugged her fingers through the hair below Asuna's braid. "Asuna's got a weak spot," the blacksmith said in a sing-song voice as Asuna's knees buckled and she lurched forward before Liz caught her with a laugh. "It has gotta be the dumbest weak spot ever, but she's really sensitive at the back of her head just below the braid. If she hits the back of her head she's fine, but if something pulls through it like someone's hand then she kinda seems to just pass out."

"I hate you Liz," Asuna mumbled before her knees gave out completely and her eyes shut.

Kirito didn't really know anything about it beyond that it was in-game and in real life. Asuna kinda just instantly relaxed to the point where she would just pass out, asleep. He rarely took advantage of it though, only in situations like this where she literally out of her mind crazy or too sleep deprived.