Before you read this, I just want to tell you I have watched the entire series of Hunter x Hunter, and I know Gon isn't with him when Alluka is. But there are many reasons he could've come back, even for a bit, so just use your imagination. Thanks!

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"So this is it..." You whispered to yourself as you took hold of the doorknob, finally leaving this place after all this time.

"[Y/n]?"

You heard a call from behind you, you didn't have to turn around to know who it was, "Killua," You breathed out 'Dang...' If he found you were leaving, he'd never let you go, but he was sleeping just a few minutes ago...

"[Y/n]...?" He sounded tired, like he just woke up.

You turned your head back to see him slowly standing up from the couch he was napping on, walking to you. He should be completely awake soon so, if you wanted to make it out alive, you had to run. If you ran, maybe you could use Zetsu and hide, at least until he stops searching. To be honest, you're leaving because you decided it would be better if Killua didn't have to worry about you, since he was already taking care of Alluka and all. And you always seemed to hold him back, despite what he says.

"[Y/n], where are you going?" He rubbed his eyes, letting a cute cat-like yawn, in your opinion, escape his mouth.

"Um..." You had to hold in the laugh, but it was so hard. This was it, whatever you said next decided on if he'd let you leave or not.

"What's with the backpack?" He was almost awake.

Run. That's what your mind told you.

Stay. That's what your heart wanted.

You wanted to stay but you were afraid they'd get hurt because of you... it almost happened once already. And that would be a lot harder to take.

"Killua, I..." Before you could explain, he glared at you. Uh oh...

"You're leaving, aren't you?" Too late. The beast has awoken.

"Killua," Deciding not to lie to him any longer, you ended up blurting out, "I have no choice."

"So you are." He concluded, looking away as if contemplating something. After a minute of thinking, he turned back to you and decided to be calm about it rather than making any rash decisions, "Why?"

"Killua, don't try to stop me, I have to go." You chose to be bold, no more sugarcoating it. This was the cold hard truth, and the truth hurts.

"Figured," He looked down, clenching his fists. "But that's not what I asked! I asked, 'why'. Why are you leaving? Alluka... She'll miss you. I'll miss you."

You frowned, he looked like he was going to cry and you hated seeing him like this. "And I'll-"

"You'll leave," He finished your sentence for you with his hair now shadowing his eyes. "You don't care how Alluka feels, you don't care how I feel, you'll leave anyways. Isn't that right? Isn't that what you always do? Do you know how long it took us just to try to get you back? And now you're leaving again. Why?"

"Shut up!" You snapped, almost immediately slapping your hands over your mouth, shocked that just came out of your own mouth.

He slammed his mouth shut, staring at you in amusement.

"Sorry!" You spurted out, slamming the front door open, "My ride's here, I have to go!"

"No!" He took a couple of abrupt steps towards you but stopped himself before he lost control.

"Killua!" You hissed.

Suddenly there was crash heard, "Nii-san..." You and Killua both turned to see Alluka with a smashed plate at her feet with a whole bunch of squished food underneath it.

"A-Alluka!" You both exclaimed, just as nervous as the other.

"Nii-san, [Y/n]'s leaving?" She asked, sadly walking over to him.

"N-"

"Yes." You didn't want to lie to the poor girl when she'll just figure it out in the morning, and you felt bad for her.

"Big brother will fix it." Killua glared at you, indirectly telling you to shut up which you rebelliously disobeyed.

"No, Big brother won't fix it." You retorted with, beginning to walk out.

"But you never even told her how you feel..." Alluka whined, tears threatening to spill from her eyes.

You froze in your spot, your ears perking up. Turning around, you felt the need to ask one more thing, "Come again?"

"H-Hey, Alluka, don't just go spouting nonsense!" Killua frantically waved his hands around in a dismissive manner. "Now's not the time for that."

"Alluka, what're you talking about?" You had to know, this was all too strange.

"Nii-san loves-"

Killua grabbed Alluka and pulled her to him, covering her mouth. "I have no idea where she gets these ideas."

Alluka desperately tried to pry Killua's hand off of her mouth, but to no avail.

"Killua!" You growled, dropping your backpack by the, still open, front door. "Now's not the time to joke around, tell me!"

"I can't..." He shook his head.

"Tell me!"

Alluka, being Alluka, was finally able to slip out of his grip due to how small she is. "You..."

"Me?" You blinked, pointing at yourself, in confusion until something clicked, 'Nii-san loves- You...' "Me...?"

"Mmm..." Killua narrowed his eyes at Alluka before shyly nodding to your comment.

"Love...me?" You still didn't quite grasp the concept of it, but you were brought out of your thoughts by your back roughly hitting the door, closing it in the process. Before you could understand what was happening, you were trapped in a kiss. Your eyes widened.

After a few seconds, you kissed back. But you both had to part for air at this time, he smiled at you, and you smiled back.

"So does this mean what I think it means?" Alluka asked excitedly, "Nee-san!"

"Nee-san?" You repeated, staring at Killua in disbelief.

Killua gave a sheepish grin, akin to Gon's, before shrugging, "I-I guess so..."

"Guys..." You heard a tired yawn come from the back of the room.

"Heh?" You turned to see Gon standing there in the hallway, staring at the scene before him with very tired eyes..

"What's going on...?"