Is there anywhere nearby we you can do this or something similar? My friend is a travel rep and I've just seen a photo of her doing it, could cry I'm so jealous!
Check Busch Garden's website, they do things after the park has closed that you can pay for. I don't know about feeding lions but they certainly do more interactive stuff on a small scale.
Dunno about lions, but you can do plenty of stuff with Dolphins at Sea World, Discovery Cove and even the Seas at Epcot.