Naruto declared that his own creation, his Sexy-Jutsu was his most powerful weapon. Every time he's used it, mostly on male enemies. They all passed out and got nosebleeds. He's used it on Master Jiraiya, aka Pervy Sage, the Old Man, (before he died.) Iruka-Sensei, and Kakashi-Sensei. There's only one person he has never used it on. Sasuke Uchiha. Naruto and Sasuke had gotten close. So when they were having their first sleepover, Naruto took that chance to find out how he would react. But it didn't go as planned, Sasuke had no reaction, except disgust. When Naruto went to change back.... That's when Naruto got the reaction he was expecting, but not in the way he planned....