So, this is based heavily on a private RP I had going on with Circlemagick on Tumblr. By the way, she's a literal goddess so if you want to ever want to have perfection bestowed on you, follow her!

This is a non massacre AU where Itachi and Kakashi have an established relationship and at 2 A.M Circlemagick and I had an idea that sort of burst into this angst ridden drama with romance and infidelity. The chapters are not in chronological order and will eventually make more sense.

In retrospect, perhaps it was not the brightest moment in Itachi's existence. He was by far not perfect, but this was a new low he had not known he could reach. Admitting to his lover that he had cheated on him while said lover was balls deep in him was certainly cringeworthy. He had been feeling guilty. The actual cheating had occurred over a year ago...but still...he had been sprawled out on Kakashi's bed, with his legs thrown over the Copy nin's shoulder and he found himself admiring Kakashi's bare face. Kakashi's face was a mystery to nearly all of Konoha and the ninja world. Itachi was one of the very few who was privy to seeing his lover like this.

Well, seeing Kakashi's bare face had Itachi thinking about how lucky he was. And thinking about how lucky he was had him remembering his slip up one year ago. And this had guilt churning in Itachi's stomach. Kakashi had moved down to kiss him and Itachi winced at the gesture. Kakashi pulled back, brows furrowing in concern.

"Did I hurt you?" He asked, voice so soft and concerned. Itachi couldn't take it. He couldn't stand Kakashi's kindness after what h had done. He shook his head, a weak smile spreading across his face.

"No...no. You're perfect." He replied, hand reaching to stroke Kakashi's cheek. Kakashi continued to look at him with that damnable concerned look on his face and Itachi broke.

"I cheated on you." Itachi's voice felt all too loud in Kakashi's bedroom. Kakashi stopped thrusting, his grip on Itachi's thighs slackening.

"What?" A beat of silence.

"I...I cheated on you." Itachi practically babbled. "Last year during a mission."

"And...you're telling me this now?" Kakashi was attempting to keep his voice level, but Itachi recognized that slight wobble in his tone.

"I didn't know when else to say it." Itachi replied pathetically.

"Not when I have my dick in you!" Kakashi shouted and Itachi clenched his eyes shut, mortified.

"I'm sorry." Was all Itachi could think to say.

"You need to leave" Kakashi's voice was suddenly cold and clinical, trying already to sound aloof.

"You're still inside me." Itachi had quietly murmured, feeling the tension in the air. Kakashi was quick to pull out of Itachi. He rolled over and yanked the covers over his lower half, staring blankly at the ceiling. Itachi quickly moved off the bed and groped for his clothing, murmuring apologies as he redressed. He knew Kakashi was beyond pissed and knew he had to give him space. He dressed as quickly as possible before slipping from Kakashi's apartment, hands shaking.

The first thing that happened when the door closed was the stupid potted plant Naruto gave Kakashi went right out the window and then there's a fist shaped hole in the wall. The mirror in the bathroom shattered, glass spraying across the room.

As Kakashi destroyed his apartment, Itachi numbly walked down the street. His thighs ached and he had barely come down from his nearing orgasm. His feet were moving without thinking. He continued to walk, approaching the compound and quickening his pace as he was moving towards Shisui's house. The only place he could think to go to.

"I cheated on Kakashi," Itachi stated as Shisui opened the door. "And I told him." Shisui stood at the door, hair mused and sleepy eyed, his hair standing on end. He stepped back, face scrunching up in confusion.

"You cheated?" Shisui stared. Itachi nodded, not knowing what his cousin would say. Shisui rubs the side of his face and sighs wearily.

"Come in and tell me what happened." He waved a hand, ushering Itachi inside and the younger is quick to do as he's asked. Soon, Shisui had him sitting at the table with two cups between them, awake and alert. He listened to Itachi's explanation, nodding thoughtfully and allowing his cousin to speak. When he is finished, Shisui leaned back in his seat, rubbing his temples.

"Ita, you decide to start like, 'going steady' with Kakashi, why'd you sleep with someone else?" It's not an accusation, just general curiosity. Itachi shook his head, staring into the cup of tea Shisui had poured him.

"I don't know. It's not like I was attracted to the man...it was...he was there and the mission had been so difficult. I thought...it would do something." He can recall the blood. How one moment there were eight nin then there was only a sea of red...he was dragging one of them as they tried calling out to their dead teammate. How he had screamed...

"Did it do something?" Shisui asked as he finished his tea. Itachi shook his head.

"No, it did nothing. Nothing changed."

"Does Kakashi know the whole story?" Itachi frowned at this. He fixed Shisui with a confused stare.

"There's no story Shisui. i wasn't drunk or drugged. My life wasn't in danger. I slept with another man because he was there."

"Yeah but it didn't DO anything for you right? You thought it was gonna fix things and it didn't. That's gotta count for something."

"Because I didn't fall in love with him? You know how strongly Kakashi feels about dishonest people, Shisui." Itachi argued and Shisui made a face.

"So go be honest with him. Face him and tell him everything he asks. You guys can work through this." Shisui spoke as if he knew the answer to all difficulties in the world. He hadn't turned his back on Itachi. Itachi doubted he ever would.

Kakashi's window is broken. Itachi stared at the damage as he slowly approached. He hesitantly opened the apartment door and peeked inside. Kakashi's pulled on some sweat pants but that it's, no shirt, no headband, no mask. He's just sitting on his bed, slumped forward and smoking a cigarette. There is no reason to go outside to do it, he already bashed the window open.

"You're bleeding." Itachi murmured, staring at the blood running down Kakashi's wrist.

"Aren't you observant." Kakashi muttered in distaste, the cigarette hanging on his lip. Itachi shifted, his face feeling overheated.

"There's glass in your knuckles, do you have any medical tape?" Itachi padded to the bathroom to looked through Kakashi's medical supplies.

"There's glass on the floor, you're gonna cut yourself. " Kakashi warned but didn't try to stop him, he took another drag off the menthol and watched as Itachi returned with the medical kit. He walked over the glass, hearing it crunch under his shoes.

"It's fine. Let me see your hands." The Uchiha instructed as he knelt down in front of his lover. He ignored the glass digging into his knees and reached for the Copy nin's hand. Kakashi did as he was told and held out his hands, allowing Itachi to take hold of them.

"I thought I told you to leave." Kakashi mutted without looking at the Uchiha.

"You did." Itachi replied, dabbing at the blood on Kakashi's knuckles and brushing away the blood.

"So you're here because?" Kakashi prompted in disinterest.

"I couldn't keep away." Itachi admitted softly as he wrapped Kakashi's knuckle.

"It's not the first time you've lacked self control." Kakashi's voice was bored and it was like a slap to the face.

"It's becoming a trend." Itachi murmured softly, unable to say anything else. Kakashi swallowed audibly and resisted the urge to grab a fistful of Itachi's hair. He opted for just staring down at the younger man with an unamused expression, cigarette dangling from the corner of his mouth and smoke puffing into Itachi's face.

Itachi silently worked on Kakashi's hands, ignoring the smoke in his face even as it irritated his eyes. He bandaged the worst of Kakashi's injuries and rubbed the salve of the rest. He avoids Kakashi's eyes, frightened to see the coldness in them.