It is tiny thing who likes to assimilate things , taking on the appearance of it and the absorbed thing mixed together.

Despite its tiny almost childlike frame, it can draw in water or other fluids into its body to increase its mass and gain a more... mature appearance.

Since it is made of entirely of goo it does not have a set gender but seems to prefer female forms despite its apparently ability to shift its mass to resemble anything and change color

art by  scorci