Since I keep getting complaints that there's sex in this I'll warn you right now, there is sex in this chapter. You can skip this chapter but there is important stuff at the end that you will need to know if you want to continue reading. I posted this earlier than I would normally because I finished it sooner and I wanted to make up for putting the wrong chapter up earlier, so here it is, enjoy.

Sasuke was just cursing in his head about having to actually get worried about Itachi when he realized that the closer Itachi got to him the harder it was to will himself to pull away. Sasuke actually felt an urge to lean in and kiss Itachi for some reason. Sasuke was so busy trying to figure out where these urges had come from he didn't even realize that he'd actually been leaning in closer to Itachi until he looked up to find a very surprised Itachi watching him. 'Maybe it won't be so bad if I actually try to like it' Sasuke thought to himself as he stared up at Itachi, it wasn't like Itachi had ever been rough with him. Before he could change his mind Sasuke pressed his lips to Itachis and pulled him closer. Itachi instantly responded by dragging Sasuke back and pushing him back onto the nearest bed and deepening the kiss. Sasuke was a little nervous when they got to the bed but didn't fight against him. After a while Sasuke began to relax and even enjoy himself and began to take his shirt off as Itachi watched him with a curious look on his face. Sasuke got his shirt off and went to unbutton his pants but Itachi stopped him warily.

"What are you doing Sasuke?" Itachi asked curiously.

"I'm obviously stripping" Sasuke said smirking at Itachi.

"Maybe you should leave before this goes any further, I don't want to force you again" Itachi said starting to get up. Sasuke grabbed his arm and pulled him back down on top of him, Itachi looked at Sasuke in shock.

"Does it look like I'm being forced?" Sasuke asked looking up at him.

Itachi just gave him a confused look but Sasuke could also see that he was a little excited too. Sasuke reached down and unbuttoned his pants and started to slide them down slowly while looking up at Itachi.

"I want to try this and you're the only one I can try it with" Sasuke said as he kicked his pants off the rest of the way with a little difficulty.

"Are you sure?" Itachi asked trying to hold himself back.

"So you don't want to?" Sasuke asked with a smirk.

"I never said that" Itachi said leaning down towards Sasuke.

"Then shut up" Sasuke said as he pulled Itachi down into another kiss before Itachi could talk him out of this.

Itachi pushed Sasuke into the bed and began to run his hands over Sasukes body as he enjoyed the taste of his mouth. Sasuke was actually enjoying himself and getting more excited by the second as he felt Itachis hands rubbing all over his body. Itachi ran his hands over Sasukes chest lightly, causing Sasuke to moan and buck his hips up into Itachis. Itachi lost it when he got that reaction from Sasuke and he began to quickly take his clothes off started licking and kissing down Sasukes neck. Sasuke couldn't help but chuckle when Itachi almost fell over trying to get his pants off as fast as possible.

"What's the rush, I'm not trying to get away this time" Sasuke said with a smirk as Itachi climbed over him again.

"I don't want to give you too much time to change your mind" Itachi said panting a little.

"Just don't rush too much, it still feels like my first time here" Sasuke said looking up at Itachi as he started to get a little nervous.

"Don't worry, I'll be gentle" Itachi said as he began kissing up and down Sasukes neck.

Sasuke moaned as Itachi bit his neck gently, he had to admit that Itachi was really good at this. Itachi started running his hands down Sasukes body as he continued to bite and suck at Sasukes neck, he wanted to make sure that Sasuke enjoyed this. Sasuke began to get a bit impatient and pressed his hips up against Itachis again. Itachi caught on and started to pull Sasukes boxers off, smiling when Sasuke lifted his hips to make it easier for Itachi to get them off.

"Looks like your pretty excited this time" Itachi said smirking at Sasuke.

"Shut up" Sasuke growled glaring up at Itachi.

"Your so cute when you glare" Itachi said still smirking down at him.

"Then shut up and go for it, before I decide to stop" Sasuke said smirking up at Itachi.

Itachi yanked Sasukes boxers off the rest of the way and went over to the desk to get the lube, taking his boxers off along the way. Itachi started coming back with the lube and Sasuke scooted back on the bed to get a little more comfortable and tried to prepare himself for what was coming. Itachi smiled down at him and set the lube down on the bed before climbing on top of Sasuke again.

"What are you doing?" Sasuke asked looking at Itachi in confusion.

"I'm going to make you beg for it" Itachi said with a smirk.

Sasuke looked up at Itachi in confusion and gasped as he felt Itachi grab his cock and start stroking it.

"You really are excited, you're already a little hard Sasuke" Itachi said with a smirk as he watched Sasuke squirm beneath him.

Sasuke tried to come back with something to that but all he got out when he opened his mouth is a choked gasp and moan when Itachi started to stroke his cock faster. Sasuke was writhing with pleasure and driving Itachi crazy. Itachi went to grab the lube, unable to wait any longer, and causing Sasuke to grunt in disappointment when he let go. Sasuke watched him and actually began to tremble a bit when he realized how close he was to going all the way with Itachi willingly. Itachi finished coating his fingers and looked down at Sasuke noticing how nervous he suddenly looked.

Itachi leaned down and gave him a reassuring kiss on the lips before moving to kiss and suck on his neck, trying to distract him again as he placed his finger at Sasukes entrance. Itachi began to push his finger in making Sasuke gasp and squirm from discomfort. Itachi began to move his finger making Sasuke squirm and pull away from him a bit, Itachi just put a hand on Sasukes hip to hold him still and looked for Sasukes spot. Itachi pushed another finger in and paused when Sasuke froze and gasped in surprise, Itachi pulled back a bit and pressed up making Sasuke whimper and squirm. Itachi smiled and decided that it was ok to go faster now that he'd found Sasukes spot and pushed another finger in and began to work on stretching Sasukes entrance. Itachi pulled his fingers out and began to rub lube onto his erection, Sasuke watched him warily and squirmed a little, fighting the urge to run. Itachi leaned down and pressed his erection at Sasukes entrance and stopped when he saw Sasukes face, Sasuke had a look of panic on his face and was clutching the sheets so hard his knuckles were white and cramping painfully.

"I'm going to push in now, it will hurt for a bit until you adjust" Itachi said letting Sasuke know what to expect.

Sasuke just nodded and kept watching Itachi as he got ready to push in. Itachi grabbed Sasukes hips and pushed the tip of his cock into Sasukes entrance, making Sasuke cry out in pain from the intrusion. Itachi went slow and just kept pushing in, even when Sasuke tried to twist away from his grip. He finally managed to push himself all the way into Sasukes entrance and stopped, waiting for Sasuke to calm down and adjust before continuing. Sasuke laid under Itachi squirming and trying to ignore the pain, but the harder he tried to ignore it the more it seemed to hurt. Itachi sighed as Sasuke kept shifting around and wincing, earning a death glare from Sasuke.

"You're welcome to be on bottom if you think that you could do better" Sasuke snapped wincing when he twisted the wrong way again.

"You have to relax, it's not about position, you clench when your not relaxed" Itachi said soothingly running his hands thru Sasukes hair.

"I'm trying to relax but there's currently something very large in my ass that's making it a little difficult" Sasuke snapped getting annoyed with him.

Itachi laughed a little at that and began kissing and biting at Sasukes neck as he reached down and grabbed Sasukes erection stroking it gently. Sasuke gasped and after a while he was moaning and didn't even notice the pain as he arched up into Itachi. Itachi smiled down at him and pulled out before pushing back in quickly, earning a strangled gasp and moan from Sasuke as he hit his prostate dead on. Itachi began thrusting quicker making sure to hit that spot every time as Sasuke drove him nuts with every moan and gasp of pleasure.

Sasuke hooked his legs around Itachis waist and began to pull himself up to meet Itachis thrusts, Itachi couldn't hold back anymore and started slamming into him still managing to hit his prostate each time. By now anyone that was five feet away from the room would hear Sasukes cries of pleasure and Itachis grunting. Itachis breathing became uneven and he started going faster as he grabbed Sasukes erection again and started stroking it, determined to make Sasuke cum first. It didn't take long for Sasuke to give in and he came all over their stomachs with a gasp and clenched around Itachi. Itachi thrust into him a couple more times before pushing himself into Sasuke as far as he could and cumming with a grunt of pleasure.

Itachi pulled out and rolled over to lay next to Sasuke and catch his breath. Itachi chuckled as he heard Sasuke panting for breath beside him, he drew Sasuke into his chest with a sigh. Sasuke was so exhausted he couldn't even move and just looked back at Itachi. Itachi smiled and gave him a kiss on the lips as he swept the hair out of Sasukes face.

"You seemed to enjoy that" Itachi said with a smirk.

"Shut up" Sasuke said still breathless and groaned when his stomach started to growl at him. Sasuke was debating with himself on whether he wanted to go thru the trouble of getting up and going to get food, he was incredibly sore and tired. Itachi chuckled and got up to put some clothes on while Sasuke watched him curiously.

"I'll go get us some food since I doubt you'll be up to moving anytime soon" Itachi said with another chuckle.

Sasuke stared up at the ceiling while he waited for Itachi to get back and wondering why he was being so nice, 'he's already gotten what he wanted so why is he still being nice?'. Sasuke was snapped out of his thoughts when Itachi came back into the room with a tray that was piled high with snacks. Sasuke sat up and winced when pain shot up his back. Itachi looked down at him apologetically.

"Sorry, I might have gone a little too hard there" Itachi said giving Sasuke a sympathetic look.

"Don't worry about it, I did ask for it" Sasuke said with a shrug, he was too tired to complain about anything right now.

"Yeah and you really seemed to enjoy it" Itachi said with a smirk as he handed Sasuke the tray and sat beside him on the bed.

"Shut up" Sasuke grumbled as he began to eat, he was so hungry he didn't even worry about what he was eating, he just ate whatever he grabbed first.

"Wow Sasuke eating for two there?" Itachi asked with a chuckle, earning a glare from Sasuke.

"Don't even joke about that" Sasuke said with a shudder.

"Why is the idea so off putting to you anyway?" Itachi asked curiously.

"How would you like the idea of them doing that to you, cause if you really want to have a kid with me then you can carry it instead" Sasuke snapped glaring at Itachi.

"But you would do better with it, I have dangerous missions and you don't right now" Itachi said thoughtfully. Sasuke froze and looked over at Itachi slowly.

"You aren't really considering it, are you?" Sasuke asked watching Itachi carefully.

"Maybe, but not right now, you're still too young, I don't like the thought of you doing something so risky at your age" Itachi said looking at Sasuke seriously.

"Yeah well I don't like the idea of doing it at any age, isn't this enough?" Sasuke asked watching Itachi curiously.

"For now, this is more than enough" Itachi said as he stared at Sasuke.

"Good, just don't bring up that damn experiment again or you'll be cut off before you even get a second time" Sasuke growled looking over at Itachi.

"Ok, no more talking about it" Itachi said holding his hands up in defeat.

Sasuke set the tray aside and laid down to go to sleep, sighing when he felt Itachi wrap his arm around his waist and pull him closer. Sasuke actually liked cuddling with Itachi, tho he wouldn't admit it, it always made him feel safe, just like when they were kids. Sasuke drifted off to sleep only slightly aware of Itachi watching him contently. Sasuke woke up and found Itachi carefully walking around the room to get dressed without a sound.

"I'm not sure if I should be flattered that you were going to let me sleep or offended that you're trying to sneak out of the room" Sasuke said making Itachi jump and spin around to look at him in shock.

"I was hoping to be able to leave and make us breakfast, I was thinking of giving you breakfast in bed" Itachi said chuckling.

"Don't bother I would rather go to the kitchen to eat breakfast, it'll give me a chance to walk some of this soreness off" Sasuke said rubbing his lower back as he got up.

"Whatever you want" Itachi said with a shrug.

They got to the kitchen and Sasuke sat down at the table carefully, cursing the fact that the chairs didn't have any padding on them. Sasuke was shifting around in his chair trying to get fairly comfortable when he noticed someone was watching him. Sasuke looked up slowly and saw Kakashi watching him carefully with a slightly confused look.

"Is something wrong with that chair?" Kakashi asked still watching him.

"No my back is just hurting this morning" Sasuke said honestly.

"Oh, did you fall?" Kakashi asked, Sasuke couldn't help but feel like Kakashi was trying to interrogate him.

"Yeah, I fell off of my bed last night and landed on something hard" Sasuke said rubbing his back gingerly.

"Really what did you land on?" Kakashi asked and Sasuke saw a suspicious look go across Kakashis face when he looked up.

"I don't know, that room is such a mess I can hardly tell where the bed is sometimes, why so interested?" Sasuke asked warily looking up at Kakashi.

"No reason, I was just making sure you were ok" Kakashi said giving Sasuke a meaningful look before sitting down.

Sasuke froze and started wondering if there was any way that Kakashi could know what he had done last night. Sasuke started blushing at the thought without even realizing it and looked up to see Kakashi studying him, he quickly looked back down at the table with determination. Sasuke couldn't look at Kakashi right now, it was too embarrassing, he was sure Kakashi knew, he just wasn't going to say anything in front of Naruto. Sasuke looked up cautiously to see Kakashi still watching him and Sasuke could have sworn he saw a sympathetic look cross Kakashis face. Sasuke tried to hide the embarrassment he felt but he knew he hadn't done it well enough when Kakashis studying look became even more intense and he got a slight frown on his face. Sasuke was glad when Itachi came in with their breakfast so he could focus on something other than his old senseis intense stare. Sasuke made his usual sandwich and started eating while he stared at the table. It felt like everyone was watching him tho and he froze to look around, everyone was watching him.

"Is there a reason why everyone I staring at me?" Sasuke asked in a grumpy voice.

"You've been shifting in your seat this whole time it's kinda distracting" Naruto replied.

"I fell and hurt my back, so if that's all can you guys stop gawking at me like that?" Sasuke asked getting a little pissy with them.

"Oh ok, sorry" Naruto said with a giggle.

Sasuke glared over at Itachi, daring him to say anything against his claim to hurting his back by falling. Itachi just smirked and went back to eating, but none of this went unnoticed as Kakashi was still watching Sasuke intently. Sasuke had just finished his sandwich when someone spun his chair around and held him down in it. Sasuke yelled in protest and Itachi leaped up to kill whoever had upset Sasuke and they both froze when they saw it was Kakuzu. Kakuzu smirked at them and held something up to Sasukes stomach watching it closely while glancing up at a confused Sasuke and Itachi. After a while he smiled and stood up going to walk out of the room.

"What the hell was that about?" Sasuke yelled still very confused.

"I was just doing a test?" Kakuzu said with a smirk.

"What kind of test?" Sasuke asked warily.

"I guess I should tell you, you'll find out soon enough when you start to show symptoms from the experiment" Kakuzu said with a triumphant smirk.

Sasuke froze and went pale as he figured out what Kakuzu was talking about and turned to look at Itachi, who still looked confused but worried.

"You fucking bastard! Did you give him permission?" Sasuke yelled at Itachi earning a confused look from Kakashi and Naruto.

"I didn't give him permission for anything, what's going on?" Itachi asked still not catching on.

"Think about it baka, what's the only experiment that involves us that he's mentioned and pushed for?" Sasuke asked slowly. Itachis face went pale as it sunk in and he turned to glare at Kakuzu.

"This had better be a joke Kakuzu or I will kill you" Itachi said in a deadly voice.

"It's no joke Itachi and you'll thank me for this later" Kakuzu said still smirking at them.

"What on earth is going on in here?" Pein asked as he stepped in closely followed by Konan and Sakura.

Before anyone could answer Sasuke had lost it, he charged at Kakuzu and tried to hit him with his chidori. Pein quickly stepped in and grabbed Sasuke holding him back as he struggled to get at Kakuzu.

"Let me go, he deserves to die!" Sasuke yelled struggling to get free.

"Somebody tell me why the shrimp just went loco!" Pein said staring pointedly at Itachi.

"Kakuzu apparently decided to go ahead with his experiment without either of us knowing" Itachi said straining to keep his voice calm and failing as everyone heard the desire to kill in it, Pein tightened his hold on Sasuke and glared at Kakuzu.

"Is this true?" Pein asked glaring at Kakuzu.

"Yes and it was a success, especially since I gave Itachi a shot that made sure he wouldn't be able to keep his hands off of Sasuke" Kakuzu said proudly.

"When did you have the chance to even do this?" Pein asked trying to find a way to prove it was just nonsense, while he held onto Sasuke tighter as he fought to get at the man.

"When I was treating his wounds from the fight with Hidan" Kakuzu said calmly.

"Is there a way to reverse it?" Pein asked in a low voice.

"I don't have a way to reverse it safely, I'll come up with that after I see if it even works" Kakuzu said confidently.

"You'll go to your lab and start trying to find a way now" Pein said sternly glaring at Kakuzu.

"Fine, but it'll take a while" Kakuzu said looking a little upset.

"Sasuke don't kill him yet, he's the only one who can reverse this catastrophe" Pein said as he released Sasuke.

"So what's this experiment that you tried on Sasuke?" Naruto asked curiously.

"I succeeded in making Sasuke pregnant with Itachis baby, I'll make millions if this works" Kakuzu said proudly.

"Itachi put the kunai away, if you kill him Sasuke might actually have to go thru with this" Pein said quickly looking over at Itachi who was staring at Kakuzu with murderous intent.

"So Sasuke is pregnant?" Naruto yelled in disbelief.

"Sasuke put it down!" Pein yelled as Sasuke picked up a knife off the table.

"I wasn't going to kill him! I was just going to severely hurt him" Sasuke yelled defiantly.

"Wow so that means you went all the way with Itachi? When did you guys do that?" Naruto asked Staring up at Sasuke in surprise.

"Shut up!" Sasuke yelled glaring at Naruto before storming out of the room.

Itachi followed him to make sure he was ok and didn't miss the disapproving glare from Kakashi as he passed, like he cared what the old man thought of him and Sasuke.

Ok so I decided to get Sasuke pregnant after all, just because it seemed like a fun idea at the time and I got no objections when I mentioned the possibility before, in fact I had some ask for it. But I haven't decided on whether or not I'm going to reverse it yet. So now the question is What's going to happen next? Will Kakuzu find a way to reverse it? Will Sasuke actually end up having Itachis baby? And what will happen to Sasuke and Itachis relationship? Warning to all, I do plan to do more sex scenes with Itachi and Sasuke, so you have been warned continue at your own risk if you didn't like the one in this chapter.

Please review, I want to know what you guys think of this and of any suggestions you guys might have. Thanks for reading.