"Within weeks I was really head over heels for this dog," he said.
"I started to do edits of him just to put on my Facebook and Instagram just to make people giggle," he said.
Cline said that his background as an illustrator has helped him come up with the creative poses and ideas.
"I wanted to take pictures and give them an illustration feel," he said.
The most popular photos are the ones in which Cline and Juji are doing adventurous things.
"Most people like the action shots and they like to see us active," he said.
He described his success as being "the American dream."
"That's everyone's dream, is to find something that you love to do and do it better than anyone else," he said.
"Since we've been doing this, it has made us a real team," Cline said. "It's more of a partnership almost when we are working."
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