For those who haven't caught all of season 2 yet, the feed is a reference to a theme song Kimmy improvises for a pair of fuzzy pals after seeing a cute photo on the computer at her public library—Kimmy's first encounter with clickbait.
Just watch the feed and quietly sing along:
Bunny and Kitty, being best friends.
Together forever, the fun never ends.
Solving mysteries one hug at a time.
Bunny and Kitty, two of a kind.
With that song in mind, seeing the pair hanging out in real life is almost too much.