Because he is old and perverted, and Felix happens to have hot wife?But what would be Brooks' reason for doing that to Felix? Why should Zack report his actions with Sophie to Brooks?
Wasn't that obvious from my theory ? If Zach would be working for him he surely would want to know how is it going, some spicy videos would be best. Now when I think about it, maybe he was uploading the videos to the school servers for Brooks ?