This can go wrong, horribly wrong. The jahiliyah amongst these folks is mind numbing. These are wild animals, apex predators that have a strong hunting and killing instict. You can't keep that bottled away no matter how much you feed and stroke it. Also, these animals interpret actions in a way that can prove very dangerous. For example, let's say the lioness is playing with him and he falls back underneath and she bites down on his neck. It's instinct for them and fatal for us. In the US, a tiger keeper met the very same fate I outlined above. His tigress was playing with him, he fell and she clamped down hard on the back of his neck. His neighbours found him dead and called the police.
These animals belong in the wild. If you want too enjoy them, do so on safari, holiday or visit the zoo. It is madness to keep such animals.