Let me make it clear that I absolutely and completely loathe Karin. However, I thought that the seduction of Sasuke by Karin would be interesting.
The first half of the story is based on the manga. The next part comes from my own twisted mind.
Disclaimer: Manga translation by Hisshouburaiken of the MangaHelpers forums. I don't own anything except the plot. Kinda.
Karin pressed her back up against the door and locked it. Hopefully, that would delay Suigetsu for a few precious seconds. Taking a deep breath, she told him, "I'll come."
She slipped off her glasses and set them down on the table. Licking her lips as she made her way over to the Uchiha, she sat down and pressed herself against him.
"If you reallywant me to, I'll go with you." she whispered seductively, drawing even closer to him. She knew that he would get the message any moment now...
"I was just thinking," Karin continued as she ran a finger along the hem of Sasuke's shirt, "How tired I am of standing guard…" She looked up at him carefully to gauge his reaction.
"What's with you?" Sasuke muttered, backing away uncomfortably, "You changed your mind pretty quickly." He hadn't counted on having this kind of effect on Karin.
"All we need is each other," Karin murmured into his ear, "We don't have to take Suigetsu either…" Sasuke looked thoroughly annoyed and he pushed her off of himself.
"I don't like you that way." he said flatly, "I just want you for your skills. I have something that I need to see through until the end." He made a mental note to avoid adding females to his team whenever possible.
"You don't have to pretend, Sasuke…unless you really do like Suigetsu more than me." Karin stood up and stared at the Uchiha and he stared right back. Sasuke sighed and stood up too. Maybe he could just get out of there before anything else happened...or maybe...
Suddenly, Sasuke had Karin pinned to the wall. She gasped and was finally silent.
"Is this better?" he said quietly, pushing up against her, "I'm sorry…but there's only one person that I care about like this. But I had to leave her in Konoha. It just wouldn't be fair to her if I gave you what you wanted." He was about to pull away when the door was sliced open.
"Let's get out of here, Sasuke," Suigetsu huffed, leaning on his sword, "Karin clearly doesn't want to come." Sasuke let go of Karin and turned to face Suigetsu.
"Fine," Sasuke began to walk away when he stopped and added, "Karin, I hoped you've learned to keep your hands to yourself."
Without turning around, Sasuke pulled his katana out of Karin's chest and her body fell to the ground, no longer pinned to the wall. The Uchiha stared at the bloody blade and walked back to Karin's lifeless body. Wiping the blood off his katana and onto her face, Sasuke told Suigetsu, "Let's go find Juugo."
End.
Well, did the ending surprise anyone? I hope it did, because that's what I was going for. I know that it's a bit on the short side, but I'm not good at writing serious stories. I'm a crackfic writer at heart.