Killua keeps his promise.

A/N: This chapter is just pure fluff with a mix of shameful, SHAMEFUL Smut (and barely, if any, plot). Anything I include here that I think is valuable plot points will be covered in the next chapter.

Also, if you don't want to read two boys getting it on, just skip this chapter, that's why I'm releasing (pun not intended) two chapters this week. *throws confetti* Now excuse me while I go hide in a corner for this shameful chapter I just wrote without any shame whatsoever

Daniel covered his mouth as he yawned, his journal being placed on the bedside table alongside Killua's. It's been a long day, and as tired as he was, Killua seemed to be the polar opposite. He felt on edge, uneasy with leaving Alluka alone.

Sure, she was in the guest room, right across from them, but he had a gut-wrenching feeling that leaving her alone will cause her to have nightmares about her time spent alone back at the Zoldyck estate.

He didn't want her to go through that again.

Daniel brought his arms around Killua, the boy tensing at the touch. With a gentle kiss along the boy's shoulder, Killua whine at the gesture. He shouldn't be overly worried, considering Daemon is with her. He likes cuddling up with people, and Alluka loves the attention, the warmth, the hug; even when it coming from a dog.

He just felt like his body wouldn't let his worries go away, keeping him bordering on the brink of insanity. Daniel was trying his best to comfort him, so maybe he should just give in, leaning into the touch as much as he can, to let all his worries drain away.

But there was another thing on his mind right now. He was alone, with Daniel. Sure, that pulled his thoughts towards an arising situation, but he was unsure if he was comfortable dealing with it now. He had after all fantasied about Daniel touching him while he was standing in this position.

The more he let his mind wander, the harder it was to think about his worries. He could use it as both a distraction and a way to talk about a topic he promised to revisit back on the airship.

Killua accidentally moaned when he felt a hand slipping under his shirt, the sound making Daniel pull away. It was the longest awkward silence any of them felt, each ones' skin tone matching the other.

Killua turned around, the boy experimentally pulling the other into a long kiss. To this very day, their kisses still felt a little awkward, mostly in an experimental way, with a rare few feeling just right, almost perfect…

His mind finally made the decision, to let go of his worries and flow with the mood. He wanted to bring up the topic on the airship right now, to just devoid themselves into a lustful tenor. But how does he start it off? He guessed it couldn't hurt to try being a little forward, pulling back slightly, the boy spoke softly into his boyfriend's lips "Daniel, the other day… I made a promise to teach you something…"

Daniel nodded, afraid to say anything just in case he sours the mood. What would he even say to that? Killua's most likely talking about the promise to teach him how to masturbate. It's not like he was going to say yes, teach me how to quote abuse my noodle unquote, as Killua put it.

Killua took Daniel's lack of words as a way to let him know, that the boy was just as, if not more embarrassed about having to be taught how to jerk off. It was his time to shine, to show Daniel the wonders of self-pleasure.

He just hoped he couldn't do anything to ruin it. Killua wouldn't want to make Daniel uncomfortable, especially during a situation he would most likely want to revisit. Curling his fingers, the boy stroked Daniel's cheek with the backside of his hand "Can you by chance, lock your door?"

Daniel nodded at the sensual touch, eager to return to their kiss.

With a warm smile, Killua then issued his first command "Then, can you lock it, then jump into your bed." He was happy Daniel followed his commands without an argument, let him live out his every desire. At this point, he wouldn't mind if he can drive his boyfriend to the point of insanity where he'll likely bottom for him.

Although, that would be really pushing it from his understanding of the boy. He watched Daniel moving back to the bed, licking his lips at the sight. Daniel had grown a little more, his old clothes looking tighter around the arms, but it also gave away some of the boy's skin, showing a little of his belly button off.

Although, he wasn't like he was fairing any better. Any taller and his clothes might have been considered a crop top. He was just lucky he didn't have any sleeves on the pyjama top he was given. On the plus side, his pants were slightly loose thanks to the elasticity and string which he could use to loosen it further.

Killua felt himself blush once he realised where his attention was being drawn to. He had unconsciously been staring at Daniel's ass for way too long, his subconscious giving away the fact that really wanted a piece of that.

Once Daniel jumped up onto the bed, Killua hovered over his boyfriend, leaning back into their earlier kiss, to hopefully live out a fantasy of his.

He tried to make each kiss eager, libidinous. His hand gently sliding under Daniel's pyjama top as he made sure to keep the mood sensual for his own sake. He wanted it to be more about the touching and feelings rather than just explanation dumping on the poor boy.

Nothings a turn off, like having the intricacies of playing with ones' self-being explained point-by-point. An eager moan was ripped out of Daniel's mouth, almost seeming to be swallowed by Killua's lustful nature. He could feel himself harden at the response, his need being driven by the more lustful tendencies he never knew he had.

Killua pulled both hands under Daniel's shirt, reaching under to pull them off. It forced Daniel to pull his arms up, the sexual drive being lost by the awkward pose. But once Killua managed to bundle the shirt under the boy's armpits, he pulled them up, removing the pyjama top.

Daniel blushed at how eager Killua came back to return the kiss, another moan being ripped right out of him. His boyfriend was slowly driving him insane, and while he didn't like this new side to himself, he didn't exactly want the touching to stop.

Nor did he want to be experiencing these feelings alone. He reached out to take Killua's pyjama top off. Killua, however, stopped him, pushing his arms back down with barely any force "No, just focus on what I'm doing to you, so can learn how to do it to yourself…"

"But, I…" Daniel bit his lip, seeing the innocent warm smile being directed at him made him feel warm and fuzzy on the inside. He could feel a part of himself wanting to let go, to be taken to a world of pleasure. But the tiniest parts of him still wanted to resist "I don't want you to be the only one… you know, doing this."

Killua chuckled as he ran one of his hands down the side of Daniel's face, fingers tracing random inches of the boy's features "I'm teaching you…"

"But you've only removed my top and kissed me for the last… two minutes give or take."

Killua flushed at the idea that his only spent the few minutes kissing Daniel. Sure, his removed a top, but still, his going as slow as possible because rushing things tend to mean more mistakes "Daniel, I'm going slow, so your more comfortable with it… not freaking out."

Daniel turned away, but Killua only brought his attention back to focus on him "don't look away, please."

"Alright, alright… slow and steady."

"Exactly!"

As Killua was about to lean forward, Daniel stopped him one last time "Thanks, for doing it slow… It helps, a little."

Killua hid his features behind his hair, a little overwhelmed by Daniel thanking him for 'going slow'. Thanking him for saving their life is one thing… but getting thanked for going slow when teaching someone how to jack off, well that was just weird. The boy leaned forward, running a tongue over one of Daniel's nubs.

The boy gasped in surprise, head reeling back, trying not to moan too loudly. He didn't want to piss off Killua by waking Alluka up, let alone his parents with his constant moaning. The boy whispered "Killua, I don't know why you're licking my nipples… but it feels…"

"Good…? Weak points. Some of the… videos I watched, had guys who enjoy having their nipples being played with."

"Oh…"

"Now, please stop asking questions…" Or make me remind myself I'm using porn and desires to live out this fantasy.

Daniel nodded again, focusing on Killua's actions. He raised his hand, gliding his fingertips through Killua's hair, hoping the boy doesn't stop him. Killua enjoyed the touches, making no moves to stop Daniel. As long as the boy doesn't attempt to remove his clothes, his happy with this.

He might have to remove his own pants from the noises Daniel's making, sure, he would like to muffle the boy so that he doesn't wake his sister, or the boy's parents up. But he's really enjoying the sounds. He finds that it eggs him on, wanted to do more with him.

Killua moved over to the other one, licking it like the first one as he played with the other, pinching and flicking it lightly. When he felt Daniel tense up, this time it felt different. The boy had squeezed his eyes shut as he grits his teeth. Killua felt like there was something wrong "What's wrong?"

"It hurt a little…"

Killua nodded as he returned back to the sensual play, now knowing the boundary of where pleasure meets pain, well, at least when it comes to playing with the boy's nipples. He changed his methods, this time running his thumb along the nub, Daniel relaxed once more, moaning at the touch.

Hearing those moans once more made him really want to remove his pants, afraid that he'll cum from just the erotic moaning. Or better yet, he needed to speed up the situation just a little. He took his thumb off as he wrestled with the boy's pants, the awkwardness settling once more at his attempt to make things feel erotic.

Once the pants were off, Killua discarded them to the side, forgetting where they ended up. He took his free hand, letting it dance over Daniel's underwear, fingers grazing over the boy's dick through the fabric. It felt kind of weird, getting this close to another's penis. But seeing the boy tensed, made it worth it. He knew he didn't have to bother worrying about Daniel. After all, he hadn't told him to stop. From the reactions the boy was giving him, it told him that Daniel was enjoying it, so, he didn't bother checking to see if he's ok.

The boy moaning his name, and god damn, was it pleasing to his ears.

Oh, how much did he wanted to wrestle the boy out of his clothes, to take him right now? He wanted to hear Daniel moan his name as he gives into pure pleasure, allowing his body to be taken by him. Killua panted, focusing on what he was doing than what was going on with his own body. It was turning him on, and this situation was supposed to be about teaching Daniel how to pleasure himself, not the other way around, receiving pleasure from a scenario where he wasn't even touching himself.

Killua ran his fingers along the side of Daniel's underwear, removing it. He stopped once Daniel was naked, enjoying the sight.

With flushed cheeks, Daniel checked to see what was going on, why the boy had suddenly stopped. What he saw made him shiver. Killua had licked his lips, and the act had kind of turned him on a little "Killua…"

When Killua turned to look at him, the sight made him tense up. Killua's eyes were dark, filled with desire and endless wanton need for his body. He didn't know if this was a good or bad thing, but the boy really needed to check to see if Killua was alright "Killua, are you ok?"

Killua snapped out of his thoughts, turning his head away in shame "Oh, shit… I'm sorry. It's… no, never mind."

Daniel pulled himself up, cupping Killua's cheeks while he had hoped the boy will look at him. Killua took one hand within his own, roping his fingers in-betweens the boy's. He was still unable to look the boy in the eyes, and that only scared Daniel a little, making him feel like he was the one causing Killua his internal grief.

Killua gave in after a long pause "Sorry, I was enjoying it a little too much."

"It's ok…" Daniel looked away with a guilty expression "Although, it was weird seeing you lick your lips from me being naked."

"I- I d- did no such thing!"

Daniel broke out into laughter which caused Killua to break as well, laughing at the situation alongside Daniel. It eased his lower region, the almost accident no longer being an issue. He quickly kissed Daniel on the lips, smiling once more "I guess I should be thanking you now…"

"Maybe… although, I'm still a little worried for you."

Killua shook his head "I'm ok, I was just… thinking dirty thoughts about you."

Daniel smiled as he ran his fingers through Killua's hair, egging the boy on to continue. While he wasn't one for talking dirty, he'll let Killua get away with it, voicing his own opinions on the situation. The more comfortable Killua was with testing the waters, the better, in Daniel's opinion the sensual touching became.

He can't deny he was loving this now, after all the moans and groans he had let out prior to the situation. To him, he felt nothing but love while Killua touched him "Oh, about what?"

Killua looked into the boy's eyes, now guilty about his thoughts, sure it was his fantasy, but he was still afraid of how Daniel's will react to the information. He couldn't lie about it either, Daniel had an uncanny ability when it came to detecting his lies "I thought about… topping you. As in bending you over, hearing you cry out my name as I well… screw your brains out."

"Oh…" Daniel pulled away from his fingers, a little scared. Although, secretly it was because of the fear of being too much like his dad. But he didn't want this to ruin what they have, so maybe for once in his life, he'll put away his fears for his boyfriend "Maybe one day…"

Killua nodded as he felt defeated. He messed up by admitting those feelings, telling him how he fantasied about fucking Daniel. Maybe he should stop here before he ruins the mood further. Daniel, however, had a different idea. Reaching out, the boy clasp his boyfriend's hands between his own, this time making sure Killua's eyes, met his own "I don't want this to end right now… please don't stop."

Killua cracked a smile pushing Daniel back down "Sure… but tell me to stop if you start to feel uncomfortable. I know I should have said that before we started, but now I'm really worried… I don't want to sour your first."

Daniel nodded as he closed his mouth, allowing his body, and control to be taken from him. He wanted to focus on what he was feeling, so what he learns here, he could apply on Killua. He wanted, no desired to touch Killua like he was doing to him, it was driving him mad with lust, and he was revelling in it, rather than fearing the outcome.

Killua ran his fingers lower, groping Daniel once more. Just like his first time a few seconds ago, only this time without the underwear, it still felt a little weird to touch a dick other than his own. But, it was quite addicting, for different reasons. If Sakura and Daniel didn't exist, would it just as fun to do this with Gon… to drive him to the point of insanity like he was doing to Daniel?

Apart of him said no, because this is only the beginning. He was sure Daniel would be willing to try new things the more comfortable he got, and that will be the perk to his relationship.

Seizing control of the situation, Killua started off slow, stroking his boyfriend off at a long steady pace, every inch being corrupted by his hands. It made the boy squirm, flicking his head side-to-side he tried to hold the noises in.

He didn't like it, so he decided to voice his opinion on the matter "Daniel, just let them out, just not too loudly…" Killua blushed right after, now having seconds thoughts about telling Daniel to moan for him.

Daniel gasped at the touch, letting a moan escape his lips, and from the corner of his eyes, he could see Killua was slowly starting to descend into the madness once more. Only this time, he'd rather not bring it up. He rather let Killua have his way with him for now, because it was starting to get fun now in his own opinion. His chest bubbled with affection, as well as something unnatural, unfamiliar.

But Killua didn't stop there, he returned back to the old routine, the one Daniel couldn't complain about. The kisses started off slow, ramping up the moment they became more eager, wanton. He brought his hands up, one running along Killua's side as the other through the boy's hair, unusually soft.

Killua stopped a moment, pulling away to nip and kiss Daniel's neck, making sure to apply as little pressure to boy's skin. He heard the same moans, but this time, he could tell the difference between the two.

When Killua nibbled, he would hear a gasp, whereas licking and sucking tended to make the boy moan more hungrily, and it was making him hard once more, dripping with desire. Oh god, how much he wanted Daniel to touch him now, letting the boy's hands find his crotch, to stroke him just like what he was doing to Daniel. But at the same time, he wanted this to only be about Daniel, his own selfish needs and desires would have to wait, provided he doesn't accidentally release into the borrowed pyjama bottoms.

Killua could tell the boy was getting closer to release, and the longer it went on, the more a second thought crossed his mind. He wanted to try it, to taste Daniel. If he didn't like it, or Daniel felt uncomfortable, he could always stop.

"Hey, Daniel…"

Daniel's half lidden eyes, panting face looked at Killua, unable to process, let alone respond to the boy's calls. It made Killua's pants strain. He had done this… he had driven Daniel over the edge, and he savoured the moment "I want to try something, do you trust me?"

Daniel swallowed once before nodded his head, letting his actions make up for his lack of voice or control over his own body.

Killua let go of the boy's member, swinging his legs over so that he just hovered over Daniel's body. Licking his lips, he took Daniel into his mouth. He could feel Daniel tense, grabbing his thighs as if he were using them to stop himself from drowning in pleasure.

Daniel cried out, a guttural noise being forced out. Killua ran his tongue over the boy, tasting every inch. It wasn't the best thing his taste, but it wasn't the worst either. It was salty and sticky, and the harder Killua teased the boy, the more that leaked out. Considering his driven him this mad for so long shows that he has a natural talent for manipulating Daniel's body.

Although he felt like he has been doing this for hours, the whole situation wasn't longer than ten minutes, most of which was probably devoted to him removing his boyfriend's clothes.

Daniel couldn't take it anymore… he no longer wanted to be a bystander in all this pleasure. Without warning, Daniel reached out, running his fingers over Killua's member through the boy's pants.

Killua's head shot up at the action, unable to contain his own moan. He wanted to tell the boy to stop, but his body wouldn't allow it. It wanted- NO, needed to be touched. He was burning with pleasure, and if Daniel didn't stroke him off, Killua will eventually have to.

It's bad enough his probably already ruined the underwear, so he couldn't destroy the pants as well "Wait, wait-" Killua felt his weight flipped over, Daniel now on top, face-to-face, eye-to-eye.

He felt his face burning from Daniel's intense gaze, that the boy's eyes were screaming how much he wanted him without words. He won't let Daniel get the upper hand, but the longer that gaze remains on him, the harder it's going to resist its call.

Killua used his weight to throw himself back on top, Daniel uncaring about who was on top, as long as this dream-like state continues, he couldn't care less how it ended. Killua felt Daniel tugging at his pants, failing to remove it from his angle. It was souring the mood, but at this point, he probably wasn't even noticing.

Daniel was so lost in his own needs, that he just wanted to take off the boy's pants, even he has to struggle to do so.

Killua swung his body over so they were side-by-side, both of them resting against the bed. It would make it easier for Daniel to take off his pants, and when he had done so, he ran his fingers over Killua's member through his underwear.

He moaned at the touch, but, at the same time in his head, he was laughing at the situation. The way Daniel was touching him, showed he had no experience whatsoever, and probably hasn't learnt a single thing from this ordeal. But, he can't exactly deny he was enjoying it. So instead, he returned to using his hand, roping his finger's around Daniel's, stoking the boy once more.

Daniel tensed at the action now sobbing, he was close to something. His body felt like something needed to be released like he needed to pee. But he didn't want to stop, he didn't even want to tell Killua he wanted to stop. So, he did his damnedest to push through those feelings, to just hold on a while longer.

He stopped what he was doing, running his hands through his boyfriend's underwear to remove them quickly. He fumbled a little, but he managed to get them down lower, which only earned a chuckle from Killua. Taking hold of Killua, he tried to mimic the boy's movements.

Even though he had laughed a few seconds ago, he loved this side to Daniel's eagerness to jack him off, going as far as to try to mimic his movements. Sure, he was fumbling, sometimes even gripping a little too hard at times, but he kind of like that Daniel was trying.

"Ki- Killua, s-stop. I really need to pee…"

That was his cue, so Killua did what he originally wanted to do. Pushing Daniel away, he slid back down the bed, swallowing the boy once more.

The action made Daniel only cry out, hands reaching to pull Killua away, but the boy only bopped his head faster as Daniel tried to hold in that gut-wrenching feeling "S- S- Stop, I'm gonna… It's- It's!"

Everything felt like a blur right after, Daniel seizing, body turning almost into stone. He felt something came out of him, but rather than moving his head away, Killua only seemed to continue on. He could have sworn he felt Killua's throat was constricting around his member, swallowing whatever was coming out. It was worrying, scary even because he had no idea what was going on with his body.

But god damn was it intense, it felt kind of good to let go of whatever it was that came out.

Killua swallowed one last time, gagging a little. Jeez, I thought I'd drown. You really have never jacked off. And I didn't want to spoil the bed… but fuck, damn that was hot! I broke him… Killua looked down, memorised by Daniel's orgasmic face "Well, how was it…?"

"Bloody scary… but also really, REALLY good…"

"I'm glad…" Killua laughed as he flopped back down on the bed, hugging Daniel close. He could feel the boy lazily wrap his arms around him, but the heavy breathing only kept Killua aroused. He'd have to jack off soon, probably once Daniel falls asleep. He looked tired.

Although he felt really good about driving Daniel insane, he did, however, feel a little guilty. He should have warned Daniel that when he gets the gut-wrenching feeling, he just needs to let go, and not be afraid.

Taking a deep breath, Daniel turned to the side, easing his breathing before leaning forward, smooshing their noses together. He was a little too tired to kiss, but he still wanted to get Killua to experience the same as he just had.

Daniel ran his fingers over Killua's member, although the action was lazy in movements, Killua rolled over slightly, moaning at the touch "Ooo… you don't have to do it if you're tired."

"It won't be fair…"

Killua laughed at the response, a warm smile being directed at the boy by his side "Alright, alright… want some tips?"

"Sure…"

"Ok, slid your hand up and down, from the base to the tip." Killua moaned once Daniel did so, next explaining tempo and speed "O- Ok, g- good. Now, the head is where you'd want to pay the most attention. L- like that…"

Killua bit his lips. Daniel was a really fast learner when he wasn't the one getting all the attention. It was scary. Now all the boy had to do, was not grip it so hard "Ease on the grip… not to tight, but a little pressure. And if you can go a little faster…"

Daniel worked up the speed, and while he still fumbled around, Killua still enjoyed it. Actually, he was dangerously close. On the plus side, at least he jacked off earlier in the shower, so it means he won't have to worry about shooting too much.

Still… he didn't want to mess up the sheets "Do you have tissues?"

"No, why?"

"I'm close…"

Like Killua had done with Daniel, he did the same to his boyfriend too. Although, he didn't exactly suck him off. He instead sped up his hand movements a little, jacking him off as quickly as his tired body could allow him.

"Oh, ooh that feels good." Killua bit his lip, trying to hold on for as long as he could. But within a minute, he couldn't hold back anymore "I'm gonna… I'm gonna cum, Daniel."

Daniel ghosted his hand over the top of the boy's member, feeling something catch in his hand as he rolled his fingers over the tip. It was sticky once Killua had finished, panting just like had done so a little earlier.

Daniel hovered his hand above his face, white fluid covering bits of his palm and fingers.

"I'll get a towel or tissue… where are they?"

Rather than responding, Daniel took his fingers in his mouth, lapping at the fluids. His face scrunched up at how bitter it was like its flavouring was sucked out, leaving nothing but a bland taste with a hint of salt to enhance the dry flavour "It tastes REALLY bitter."

Killua frowned "Yours wasn't so bad though." I kinda like it… "But I won't be doing that ever again. Jeez, felt like I just swallowed a jug of your creamy goodness…"

Danie lazily poked Killua's cheek with his non-sticky hand "And I thought your cum will taste sweet, just like you… considering the number of sweets you consume."

"You- You…" Killua flushed at the accusation "you're weird! You don't casually admit that…"

"Says the guy who swallowed my creamy goodness."

"That was a joke, and you know it!"

Daniel laughed at Killua's expression "You know, couldn't you just Transmute the taste like you did with the water?"

"I… hadn't thought of that. Next time I'll jizz chocolate, just for you."

Daniel laughed at that, shoving Killua slightly in the shoulder "Yeah, next time. Just don't make it super sweet like you or your drinks."

Killua shoved Daniel for that remark "Don't say things like that. It's super embarrassing."

"Oh, so Alluka gets to call you cute all the time, but I'm the one who doesn't get to say it because it's embarrassing…"

"She's not the one, who just licked 'my' cum off his fingers."

"Nor is she the one who just sucked me off, complaining I cum like a hose."

Killua broke into laughter once more, alright, that was funny "Sure, Fireman Dan!"

Daniel rolled over on top of Killua kissing the boy as he did the same when they pulled apart, Killua scrunched his face "Wow, you are right. I do taste bitter as hell."

They could only smile at each other, this time returning to kiss their boyfriend before sleep could take either of them away.