When They Knew

Summary: It seems like Sasuke and Naruto have always liked each other more than they realized. In fact, almost everyone on Team Kakashi realized it before they did. Each chapter is an account of when a different member of the team knew. Each chapter will get longer and more graphic as the story goes on. Sasunaru. Much Sainaru in this chapter. One-sided Sasusaku and hints of one-sided Narusaku

Disclaimer: I don't own Naruto. D: I also don't claim to have made up the fact that Sai is kind of gay. It's fairly canon. :P But we fangirls (and possibly some fanboys :3) love him for it, right? =o

Warnings: Gay sex in this chapter. I'm not gonna lie: it's not appropriate for the children. -handinface- I tried but, alas, this chapter turned out to be ruthless PWP as per usual. =_= I'm not gonna put an age limit on my fic because, frankly, I doubt any of you tweens are gonna listen and refrain from reading it anyway. I know, when I was a young kid, warnings like this certainly didn't stop me from delving into my yuri stash. =_= Just don't say I didn't warn you, kay? LOL And sorry if it's not completely accurate or something. xD I'm not really one for the sex with men in real life if you know what I mean. =o

I'm more pleased with this chapter than I was with the others... I might go back and edit the others later. xD

I'm usually a strictly OTP kind of girl but I figured I might as well let Naruto have a little fun while Sasuke's off being his stupid emo self.

LOL I made Sai such a sex god. xD I hope I kept him in character. I tried anyway. O.O I'm so mean to him in this chapter. T^T I'm so sorry for that cause I actually like him.


Sakura shoved Sai into the room, shutting the door behind her in a huff.

"What's up?" Sai asked, raising an eyebrow. "You finally getting me alone so you can confess your obvious attraction to me?"

Sakura cried out in exasperation. "Sai, you idiot! That's not it. It's Naruto."

Sai sighed. "What about him?"

"It's what you said to him today. How many times do I have to tell you? Stop calling Sasuke gay in front of him. It's really insensitive." Sai scoffed, crossing his arms.

"I don't see you giving me any reasons why I should. What? Is he a queer too?" Sai stared tauntingly at Sakura, his face twisted into its familiar fake smile.

Sakura was silent.

"Holy shit… he is, isn't he?" Sai said, his eyes widening slightly. "Uzumaki Naruto likes dick!" He exclaimed, clapping his hands together in delight.

"Shut up, Sai!" Sakura roared, throwing her fist back threateningly. "Don't you dare say anything to Naruto. I don't think even he knows." Sai pursed his lips together.

"You're no fun," he said disappointedly. "I was only gonna make fun of him a little."

"It's not funny, Sai. Sasuke was the best friend Naruto's ever had and he left. It's hard for him."

"Fine, fine!" Sai said, waving her off. "I won't make fun of him. Whatever."

Sakura flashed him a cat-like smile. "Good. Because, if you ever go against your word, I will kill you." She cracked her knuckles for emphasis.

Sai nodded quickly. Sakura was scary when she threatened violence.

Sakura walked out of the room, satisfied that she'd thoroughly convinced him. As soon as she was gone Sai pretended to smile to himself. He'd read somewhere that people do that sometimes when they're plotting something.

* * * * * * * * * *

Sai slinked off to Naruto's apartment, determination in his eyes. He knocked twice, sure that Naruto was home. He hadn't seen him at Ichiraku so it was almost certain that he was back there.

Sure enough, Naruto answered the door.

"Hey Naruto!" Sai said with fake enthusiasm. "In my research I came across information that states 'friends visit each other's houses'. So I figured I'd come and stop by." Naruto looked at him suspiciously.

"Uh… okay," he said. "I've got nothing in particular planned today so… sure. Come on in." Sai happily let himself in, kicking off his shoes at the entrance.

"I've read that now we should engage in various enjoyable activities with one another based on similar interests," Sai recited. Naruto nodded.

"Yeah, I suppose. I don't really know what 'similar interests' we have though. I've never really read much…" Sai shrugged.

"We both participate in missions…" he said. A glint of mischief flashed in his eyes. "Oh, yes. Here's some news I believe you will show interest in: I heard that Sasuke was spotted a few villages away."

It wasn't exactly a lie. Someone had reported to have seen the Uchiha a week or so ago. Of course it turned out to not have been him at all so no one had bothered to tell Naruto.

Naruto looked at him attentively. "Yeah…?"

Sai nodded. "Yeah. We're supposed to get more information about it tomorrow." Naruto sighed.

"Of course. It's probably another fake sighting…" he mumbled. "I mean, seriously? How many people are traipsing around out there with hair like that?" Sai chuckled.

"Or outfits that ridiculous?" He noticed Naruto shift slightly. "With the shirt wide open, exposing the chest... or that purple rope around his… waist." He purred slowly. Naruto didn't notice the sudden seductive change in Sai's tone of voice. The younger boy's eyes clouded up in lust, an obvious hard-on forming in his pants.

Sai smirked. He had his proof.

"You know…" he said carefully, "it's not very polite to get a hard-on when someone's talking to you."

Naruto snapped out of his daydreams, grabbing a nearby pillow off the couch he and Sai were sitting on and covering himself, blushing furiously.

"I-I-I d-d-didn't… I-I-I m-mean I…" he stammered. Sai waved his comments off.

"Don't worry about it. It's a perfectly normal reaction for teenage boys," he said. "I've read about a good way to take care of that."

"How?" Naruto exclaimed, desperate. "It seems like I'm getting them all the time for no reason these days."

"According to 'Icha Icha Tactics' you're supposed to let a friend take care of it," he said. "It's a common and easy solution for friends to help each other out. Don't worry. I'm willing to offer myself up to be at your service."

Naruto's eyes widened and his already blushing face darkened another shade of scarlet. He was smart enough to know what Sai was implying.

"What? But I-I-I j-just… you're a guy!" he sputtered.

Sai rolled his eyes. "Don't even try to deny that you're gay, Naruto. Everyone knows that you still have a thing for that traitor Sasuke."

"What?" Naruto exclaimed. "No I don't!" Sai sighed.

"Then why did Sakura tell me you do?" he asked. "Even she's convinced that you're a faggot." Naruto gasped.

"You… you're lying," he muttered. "You…"

He was interrupted by the feeling of lips on his.

It was his first kiss since he and Sasuke were kids…

Naruto pulled away suddenly.

"I-I can't…" he whispered. "It's too weird."

"No it's not," Sai said quietly. "We're just a couple of friends getting rid of a little 'problem'. We're both just teenage boys with needs." He ran his hand up Naruto's thigh and touched Naruto's throbbing erection through his clothing. Naruto gasped into Sai's mouth as he pulled the other boy closer once again.

Sai kissed him softly, moving up to suck on Naruto's earlobe. "You can call me Sasuke if you want," he whispered into it.

Naruto moaned. "N-no," he said, pulling Sai back up and locking lips with him once again, "I don't want to."

Sai smirked and this time he wasn't sure whether it was a fake one or not. He'd felt an unfamiliar sense of pride at those words.

He unzipped and pulled off Naruto's jacket, throwing it haphazardly across the room. He leaned over Naruto, forcing him to lean back and lay on the couch. The blonde grabbed a handful of his shirt, jerking him forward to crash their lips back together.

Sai kissed him back with just as much ferocity, running his hands under the other boy's black sleeveless top and raising it over his head, their mouths parting for just a second to let it come off and get tossed aside like his jacket before it.

Naruto sat up and ran his hands over Sai's already revealed chest. He pushed Sai down and climbed on top of him this time. He quickly unzipped the belly shirt with uneven sleeves that the black-haired boy always wore for some reason and ripped it off, hearing a snap that probably indicated that it was ruined.

Neither one of them cared.

Sai rolled them over again, more comfortable on top. He rocked his hips into Naruto's, savoring the strangled moan that came out of the blonde's mouth.

"You like that?" Sai said softly into Naruto's ear, grinding their groins together again even harder. Naruto threw back his head and groaned loudly.

"Yes… yes!" he begged. Sai needed no further coercing. He reached down and unbuttoned the blonde's pants, unzipping them and shoving his hand inside.

Even through the fabric of his boxers the feeling intensified. Sai slowly teased around the tent in Naruto's boxers, leaning forward to suck and bite on one of his neglected nipples. Naruto whimpered and arched back, raising his hands to run through Sai's hair. His eyes glazed over.

He let Sai touch him and didn't even attempt to touch him back.

Sai knew that Naruto was close. He moved to give attention to his other nipple and then, without hesitation, shoved his hand into the other boy's boxers as well.

Naruto gasped, clinging to Sai's still half-clothed body. Sai kissed his cheek and back over to his mouth.

"Cum for me, Naruto," he whispered onto his lips, his hand jerking ever faster and more frantically at Naruto's dick, already wet with precum. Naruto writhed under him, unfamiliar with this feeling of intimacy.

"Ah~ yes!" Naruto cried. "Ahh~" White liquid rushed out and covered Sai's hand. Naruto stopped convulsing under him and laid panting and sweating.

Naruto's mind was wonderfully blank for just a few blissful seconds. He was broken out of his reverie by a chuckle from Sai.

"What is it?" Naruto asked, opening one eye and frowning. Sai was on his knees, straddling and looking down at him.

"You're still kind of hard," he said, nodding toward Naruto's crotch. Naruto's frowned deepened and he closed his eyes once again.

"So what? You said it yourself: I'm a teenage boy with needs. Don't judge me." Sai shook his head at Naruto even though the blonde wasn't looking.

"No, Naruto. I'm not judging you. In fact," he leaned down and rocked his hips into Naruto's again, "I've got one too."

Naruto's eyes fluttered open, finally realizing that Sai hadn't come yet. He reached up and unbuttoned Sai's pants.

Sai quickly shoved them off along with his briefs. Naruto wasted no time shoving off his own boxers in the meantime.

Now completely naked, both boys reached out to pull each other closer. Sai leaned in and kissed the jinchuuriki softly, cupping his face gently with his hands. Naruto licked at his lips and Sai understood, opening his mouth to the other boy's intruding tongue and meeting it with his own.

He pulled away.

"Do you have any lube or lotion or anything in this house?" Sai asked quickly. Naruto gave him a weird look.

"No…" he said, not quite sure what they needed it for anyway. Sai rolled his eyes.

"We'll have to improvise then," he said, extending three fingers in Naruto's face. "Suck these."

Naruto raised an eyebrow in questioning but obeyed. He took them into his mouth, getting them nice and slick with his spit. Sai watched him in awe, the action making the anticipation even harder to stand.

"That's enough," he murmured when he was satisfied. Naruto released the fingers, a trail of saliva breaking off and running down his mouth.

Sai had never seen anything so beautiful.

He forced himself to avert his eyes. "Lay down," he said. Naruto did as he was told and leaned back. Sai reached underneath him. "This might sting a little but it'll go away quickly," he said. Naruto nodded, putting his full trust in the other boy.

Sai slid one of his fingers into him. Naruto let out a slight sound of surprise and discomfort but otherwise said nothing.

"You okay?" Sai asked before he went any further. Naruto nodded.

"… y-yeah," he said slowly. Sai took that as an invitation to continue. He started to stretch the boy out, pulling his finger in and out of him and then inserting another. Slowly Naruto got used to the feeling and began to move his hips into the thrusts of Sai's hand.

"M-more…" Naruto muttered. Sai nodded and removed his fingers.

"You sure?" Naruto groaned in frustration at the loss of the fingers inside of him.

"Y-yes~ I need more now." Naruto slid closer to Sai, looking up at him seriously.

Sai shuffled into a better position, supporting himself just on his knees. "Are you ready?" he asked. Naruto nodded.

"Yes. Just do it," he growled. Naruto lifted up his legs and tensed slightly, bracing himself for the pain.

Sai directed his cock towards Naruto's stretched-out entrance. "Relax," he whispered. Naruto nodded and closed his eyes, taking a deep breath.

Sai slowly slid into Naruto, his breath becoming as labored as the jinchuuriki's was as he was suddenly overwhelmed with pleasure. "Oh... damn it, Naruto, you're so tight," Sai said shakily, trying not to come right then. "Are you... you okay?" he asked through clenched teeth.

Naruto wasn't listening.

He never realized how empty he was until he'd been filled. His body overloaded with emotions and sensations. The feeling of another person inside of him was overwhelming.

His brain barely processed Sai's question as his eyes rolled into the back of his head. He arched and grabbed onto the cushions of the couch beneath him. "M-more..." he whimpered. "Fuck me... more." Sai obliged and moved forward, his whole member finally sheathed into the other boy. Hearing Naruto's sound of approval, he began to thrust in again and again, developing a steady rhythm.

Naruto closed his eyes, his hands moving up to stifle the loud cries escaping his lips. Sai leaned over him and kissed below his ear, trying his best to bite and suck at the blonde's neck and still keep breathing.

It was almost too much to bear.

A single tear slid down Naruto's face. "Oohh... right there!" he cried out as Sai hit that special spot inside of him. "That's it! Do that... ah... again~" he panted. Sai nodded quickly and concentrated all his thrusts in that area, his eyes clenched tight in concentration.

Another tear. Naruto's breathing became more erratic and desperate. Sai didn't seem to notice as he kept on pounding himself deeper and deeper into the younger boy. Naruto shuddered and grabbed his own cock, jerking it in time with Sai's thrusts.

"Agh~" Sai grunted. "I'm gonna..." Naruto nodded.

"M-me too..." he wailed, trying not to let his voice break into a sob.

The pale boy buried himself even deeper into him and suddenly Naruto saw stars, an orgasm rocking his body once again.

He let down his guard, finally screaming out the only name that mattered to him.

"Sasuke~"

Semen squirted and emptied onto his stomach. Sai came soon after, filling Naruto. Sai took a second to catch his breath before sliding his softened member out of Naruto, sperm pouring out with it. He laid back and closed his eyes, still appreciating the high he just experienced.

When he opened his eyes Naruto was gone.

* * * * * * * * * *

The next day Sai met with the rest of Team Kakashi for a mission. He saw Naruto and waved.

"'Sup, dickless?" Sai asked, trying to subtly reassure Naruto that nothing had changed between them. Sakura shot him a glare at the comment but he ignored it.

Naruto didn't look at him.

"Nothing much," he said, not even glancing in Sai's direction. Sakura gave Naruto a strange look. She sensed his distress but didn't say anything.

Sai didn't say anything either but he felt a pang of dark emotion in his chest.

Naruto was beginning to bring out such unfamiliar feelings in him. It's was disconcerting for someone who spent his life purging himself of emotion.

He was falling in love with Naruto.

Realizing that, he couldn't even fake a smile.