Alright, there seems to be a lot of misunderstanding concerning Kirito’s avatar during the 3rd arc Phantom Bullet. Rest assured, Kirito is still a guy. I don’t want to spoil too much, but long story short, the game Gun Gale Online randomly generated an avatar for Kirito. That avatar just happened to look like a girl (it is a really rare avatar type mind you). Kirito didn’t meant to look like that. He was rather shocked too since the result ended up the opposite of what he had in mind. So stop saying Kirito is a girl in GGO. He is not a girl… but a trap. Learn the difference. Thank you.
TL;DR = Kirito is still a guy in GGO.