Super Pissed with my brother

Yesterday night, my brother asked me to help him download 'How I Met Your Mother' season 6 torrent before I went to bed. I logged him his account on my laptop and then went to the internet explorer to search for the torrent. While I was typing on the phone i accidentally pressed the 'j' button and on the url there, usually they show you a few website urls that start with J and one of them was one of the porn sites I go when I got nothing to do. I was damn fking pissed with this man. I specifically told my brother to keep the laptop clean and any porn surfing should be done on the computer(desktop) and not on MY LAPTOP! How could he corrupt the chastity of my laptop.. RAWR