The base joke is taking the idea of "I became a furry after watching Robin hood" and running with it. The parents show their child hoping for the outcome and the high five when it happens. For this interpretation the rabbit and shark are characters from Pesky's comic RE: Strained where the rabbit character traces her draw to being a dom to the show depicted, "Sun bun and the Nightmare Hare".
Why are they high-fiving?
The base joke is taking the idea of "I became a furry after watching Robin hood" and running with it. The parents show their child hoping for the outcome and the high five when it happens. For this interpretation the rabbit and shark are characters from Pesky's comic RE: Strained where the rabbit character traces her draw to being a dom to the show depicted, "Sun bun and the Nightmare Hare".