Disclaimer: I do not own Naruto, or anything related to it.
The DOs and DON'Ts of Kakashi's Mask
DO try your best to see what is under his mask.
Seventeen.
The number of plans Naruto had to see behind Kakashi's mask, including catching him while he was sleeping, using a fake spider to peel it back, challenging Naruto's own eternal rival (Lee) to a game of 'who can get Kakashi's mask off first', having Sasuke light it on fire, and, Naruto's personal favorite, taking him to the Ramen stand and buying him lunch.
Of course, all their plans failed. Lee wailed about his defeat and how he would run five-hundred laps around Konoha for his failure. He was on lap two-hundred thirty-seven last time they checked. Ino had blocked their view of him at the Ramen stand. Kakashi had fire-proofed his mask, but not the rest of his clothes, so he walked around nude (save for the mask) for the rest of the day, until Kurenai hit him over the head with a bat for traumatizing Hinata.
Kakashi wore so many masks to bed, they had barely gotten through the first hundred when he woke up. And the fake spider had only gotten them extra training in 'Boot Camp Hell, Kakashi Style'.
Nothing they did had worked. Finally, tired of the numerous, normally complicated, plans of Naruto, Sakura went with something simple.
When all else fails, DON'T forget to ask what his face looks like.
"What does your face look like?" Sakura asked. Kakashi smiled, and took off his mask, showing his face to the three genin. Sakura passed out from blood loss via a nosebleed almost instantly.
"Whoa," Naruto said.
"Damn," Sasuke said.
"No wonder you where a mask. If the fangirls knew what you looked like, you'd never be left alone!" Naruto said. Sasuke perked up, pulled out a camera, and took several pictures before Kakashi managed to put his mask back on.
"No more fangirls for me," Sasuke said, cackling. "They'll all be after you within the week." Kakashi didn't make a move as Sasuke took of running.
"That doesn't bother you?" Naruto asked.
"I can have these distributed just as quickly," Kakashi said, handing Naruto several photos of an ugly face beneath his mask. "Sasuke's attempts to get rid of his fangirls will be futile."