Folly
She was pinned roughly to the floor, her clothes still underneath her; his fingers were curled around her arms. Itachi loved the way her head fell back when he moved inside of her; he loved the small noise that she made when he nipped at her skin; he loved the sense of power he had every time he took her. He was intoxicated with her. Every move she made had shivers running down his spine.
Of course, being intoxicated with her did not mean that he was in love with her. That would be a folly on his part; if it were true, he would be dead by morning. Itachi was smart enough to know that getting himself involved with one of Konoha's finest Anbu was dangerous, suicidal, but still, he could not bring himself to kill her.
Itachi could feel her hand gripping at the discarded clothing beneath her. He smirked; she enjoyed these encounters as much as he did, and he knew, as her lips met the pale skin of his neck, that she would never turn him in. He could almost feel it in his skin.
Time seemed to freeze as he came, shuddering into her with a choked gasp. He fell on top of her in a light doze, his mind blissfully blank for a moment. But that was all she needed. There was a sharp pain in his side, and his eyes were fully open again. He knew it was a kunai, and he knew it was her hand dragging it across his stomach, but he could not bring himself to acknowledge what she was doing.
All Itachi could do was push at her weakly. He had already lost too much blood, of that he was sure. His weapons were in his coat a few feet away, and he was so tired. He turned his eyes up at her, trying to predict her next action, but found that she was looking away. It made sense, when he thought about it, who would look into Sharingan Itachi's eyes when they were killing him? But the thought of activating his eyes had not even crossed his mind. He was going to die, and he could not stop it.
A few seconds later, Tenten stood up quietly. She pulled her kunai away and wiped it on Itachi's cloak before pulling her own clothes on. Not a single word passed her lips as she stepped out of the room.
This is a gift for Evan (and Madhav too). He requested a itaten fic (a pairing that I am completely against), so I wrote it for him. Sorry I killed him, Evan, it had to be done.