Out of... personal reasons... you were on a certain website and came across someone, that looked like Natsuo so you decided to clicked on a video, and it was Natsuo!! But he was riding someone as you hear... sounds come out of them and as soon as you heard that you clicked off. A week later you saw Natsuo in public and it gave you a flashback of what you saw you didn't know if you should ask Natsuo or not, you didn't know if it was odd why you were on that but curiosity was killing you