Faithful
When Sasuke had announced that he and Sakura were dating the reactions of various people had not been as expected.
Ino had hugged her friend and told her she wanted to know everything.
Kakashi had smiled and reminded Sasuke whose student Sakura had been.
And Naruto, his reaction was by far the least expected. In stead of congratulating the pair and insisting that this be celebrated at Ichiraku's, he had picked up Sasuke and slammed him against the nearest wall and told him the following.
"You had better be fuckin' serious about this Sasuke 'cause if I find her at anytime crying over you, she ain't the one you're gonna be worrying about. I will hunt you to the end of the earth and destroy you if you hurt her. I have watched this girl sigh over you and worry about you for the last six years and honest to fuckin' kami if I find that you have hurt her or been unfaithful or if you treat her wrong in any way, I. Will. Fucking. Kill. You."
I broke my thingy promise! I'm so sorry! But the prompt 'Faithful' was too tempting.