Well, KAT-TUN are not like that.. just Jin & Kame.. IMO their relationship has been visible before.. even when they weren't doing fanservice. Well.. that's pointless discussion because we'll propably never know the truth but as for me, I'm sure they used to be lovers. Absolutely. They used to smile the most together, they used to be so happy at that time. They even looked the same at that time O____o Simply made to be together. Shuji to Akira = end.
And about Takki.. that guy is gay.
Absolutely. =D
PS: When talking about marriage.. Jin & Kame. Lol.
