Shadowman said: Yeah. I don't get the Japanese fascination with cross-gender and cross-dressing and futanari and all that stuff. I personally get incredibly disgusted at the thought of having sex with a guy, no matter how much he looks like a girl.
Elbrook said: We forget that Naruto's Transformations are Solid.
I'm pretty sure the series itself has never said one way or the other, and you're relying on fanon as if it's canon. That said, I'm kind of creeped out that a 12-15 year old boy is screwing a guy regardless of how good the transformation is.