I first saw photos of the girl and her cat on Tumblr. Being throughly delighted by these photos, I wanted to search for their source. A Russian economist named Andy Prokh has been taking photos of his daughter and the family cat named Lilu the past four years. Some are tweaked a little with photo shop while others are just the cuteness of his two subjects. More of his photos can be found on Photodom.com where I found these.