Somethings went through one ear and out the other with Dean. Honestly, a bag of rocks would call him 'dumb.' But he was always honest, Dean didn't even know how to lie or be dishonest, it simply was not in his nature. Though he didn't mind that Kat didn't trust him, he didn't know any better.
"There are bigger animals?!" Dean spoke in an astonished tone, his tail beginning to wag again as it was obvious he was excited, though his excitement was pure, Dean simply wanted to see more animals. "Dean would like to join Kat in feeding the bigger animals!" His 'smile' widened a little more, he would follow her to wherever she wanted to go. Kat was Red's daughter, and that earned near absolute trust from him.