alien
alien_humanoid
black_hair
dib_membrane
drawnbykat_(artist)
duo
eating
freckles
hair
hi_res
human
humanoid
invader_zim
irken
male
male/male
mammal
nickelodeon
not_furry
oral
simple_background
sketch
spread_legs
spreading
traditional_media_(artwork)
unimpressed
zim_(invader_zim)
