A/N: I hate doing things that have been done over and over usually. But this is something I just feel I have to, besides, no one has made Haku strip to confirm he's a guy to my knowledge. This idea came to me in study hall while talking to a friend of mine; I was actually trying to find a plot for a fic about Orochimaru being creepy or something when I got this idea.

Disclaimer: I don't own Naruto.

My brother, Zabuza, and Haku were home for the weekend. I hadn't seen the two of them in a year since they were pretending to be dead, lest they be hunted again. My parents were pissed that not only was their traitorous son alive, but wanted to stay with them. However, Saru and I were ecstatic at the idea. And Zabuza had just stepped out the door to get some sake –wearing a disguise of course, he's not as stupid as he was back when he threw the coup- leaving the perfect opportunity to get an answer I've wanted since the first time I met Zabuza's 'boyfriend'. Now, I trust my brother to know what male parts look like and all but what if he hadn't seen the so-called-male naked? Then how would he ever know the difference?

Zabuza wasn't there. I was curious. Haku was unprotected and I had an accomplice that was scared of what I would do or say if she didn't go along with it.

"Shaiala, whatever you're planning, stop before you get in trouble," Haku warned in his girly voice. Yeah, boy my ass!

"Haku, do you have a vagina?" I asked innocently as I got up from the couch to stand in front of him.

"No, and I have no interest in exploring yours," he said flatly.

This took an unexpected turn. I was asking about his gender, not if he wanted to have sex. What kind of girl did he take me for? I had more self-respect than that and he knew it. I sat in his lap, hoping to feel some sort of bump. Nothing. Either he wasn't turned on or he was actually a she. "Silly Haku, that's not what I'm asking about," I chuckle to hide my annoyance.

"Then what is it?" he demanded. I guess hiding in secrecy lowers your patience.

"Are you truly a guy, or lying to my brother?" I asked, in my least flirty tone.

"I'm a guy," he answered as he shoved me off him.

"Prove it," I ordered as I sat on the coffee table.

Haku's pale face turned red. "How?"

Saru finally decided to join me, "Strip," she suggested with a shrug.

I didn't think it was possible, but Haku's face went redder, but this time he also looked confused – Saru was not one to say things like that. He wasn't stupid; he had to know we were ganging up on him. "My word and Zabuza's word is not good enough for you?" he growled.

"Well, the only one we have definite knowledge of seeing you naked is yourself," I countered, suppressing a chuckle.

Haku stood and untied his floral kimono. It fell to the floor. Haku stood there in nothing but pink boxer shorts and that was when Zabuza got back.

With an eyeful of Haku's near-nakedness, Zabuza shouted, "What the fuck is going on!"

"Strip tease," I answered simply, humor glimmering in my yellow eyes. This was not my brightest moment.

"What Shaiala meant, Nii-san, is that we wanted proof that Haku is a man," Saru said, probably saving my ass.

"And what does his gender matter to you two, as long as he's willing to fight for me and be there by my side, not even I care what parts he has!" my brother exclaimed, thus closing the discussion of what Haku is. I guess the world may never know.