1:1
anatid
anseriform
anthro
anthro_on_anthro
avian
beak
bird
breasts
clothed
clothing
darkpenguin
duck
duo
erection
female
foreskin
genitals
greyscale
male
monochrome
nipples
non-mammal_breasts
non-mammal_nipples
partially_clothed
penis
simple_background
tail
white_background
