>i dont get how can you get a boner looking at the ball
Think about it like this, you like Germany, you are German, you would fight for Germany. So if you find a personification of Germany that can put a dick in you then you would love that. (doitsu)
Like me, I like Polandball, I will fight for Polandball, so if I find something where I can put my dick in a PB or if a PB can put a dick in me then I would love that. Thats part of why I like countryhuman porn so much.