I haven't gotten enough pics of Juvo and I really should. He is Umbra's guardian in many ways, and they can share a physical symbiotic relationship as displayed here where Juvo melts off of Umbra's back. Course he can melt onto or into Umbra's body as well.
Umbra and Juvo are both my characters (c)
Art by the awesome http://www.furaffinity.net/user/dynosaur