Bixby the animal

This is Linda's pet. You can't quite tell what it is, as its shape seems to be in a constant state of flux. A gigantic animal of some type holding a yellow flower. He is covered in green scales. He has 5 arms, 6 legs, 5 heads, 4 horns, and is shaking rapidly in the corner. He notices your gaze, and changes shape, just to amuse you.