That's adorable!
I saw a show on Animal Planet the other day about a sanctuary where a group of tigers (mostly white tigers, I think) are kept as a 'family,' and their caretakers interact with them as if they are part of the group.
FYI: here's what the caption says:
"The woman in the video found this lion wounded and near death in the wild. She took him home and took care of him until he got better. When he recovered, she called a zoo and made plans for them to take him and give him a new home, where they could continue to take care of him.
This video was filmed when the woman went to visit the lion in the zoo some time later. The reaction of the lion when he sees her is INCREDIBLE!"