Why are imoutos so popular in anime?
Why is Kirino such a bitch?
What is this, Best Girl General?
Japanese otaku fap so much that vanilla isn't enough and at the same time they get so into anime that they self insert. It's the industry catering to them I believe.
They're so cute and innocent and lewd
The forbidden fruit
Their perfect white teeth?
Imoutos are love
>Not cumming inside your imouto on a daily basis to show her you love her
Easy plot device. They already live together, there's no bullshit like school clubs or what Clannad pulled.
This guy knows
There's already an imouto thread you human trash. Go to that.
Because /a/ is having sex with its sister right now.
At this moment.
Because people without female sibling imagine them as some magical cure-all.