1UP - If I were a betting man, I'd say that they were brother and sister. But to be perfectly honest, I'm not really sure. They were both probably five or six years old -- the girl wearing a paper Okami hat, and the boy proudly donning Finn's cap from Adventure Time. But not knowing their relationship didn't really bother me all that much. The important thing was what they were doing -- the two of them were playing Sly Cooper: Thieves in Time on PS3 -- nothing more, and nothing less.