Rule34.GG

Regular animal genitalia
anthro
bat
brown body
brown fur
curator (species)
english text
erection
fur
gender transformation
genitals
hi res
human
kneeling
male
mammal
markings
masturbation
membrane (anatomy)
membranous tail
membranous wings
microbat
mid-transformation
pale skin
penis
pregnant
sheath
solo
species transformation
speech bubble
teats
text
transformation
unsheathing
welcometaco
white markings
wings
yellow eyes