There's a fine line between love and obsession when it comes to pets and their owners. Take for example Jennifer Aniston, who got her dog Norman's name tattooed on her foot after his 2011 death, or Adam Sandler, who made his bulldog Meatball his best man at his wedding and then held a 100-person memorial at his home when the pooch passed in 2004. Other stars like to memorialize their time with their beloved pets by sitting for celeb photographer Christopher Ameruoso, who has captured Selena Gomez, Ozzy Osbourne, and Courteney Cox with their treasured furry friends over the years. His craziest photo shoot? Amerouso tells "Celebrity Pet Project's" Theo Von about the time he convinced Megan Fox to pose with a real fox!