aylastardragon (http://www.furaffinity.net/user/aylastardragon) did this months ago, but the posting couldn't be better timed, what with the epic Picture of Saturn taken by Cassini recently released.
Now you're growing with Portals! =)
Art © 2013 aylastardragon
Character, Rooth'ragon © 1991-2013 rooth (me)
Original post: http://www.furaffinity.net/view/10522974/