Rule34.GG

Regular after transformation
animal genitalia
animal penis
anthro
black body
black fur
border collie
canid
canine
canine penis
canis
clothed
clothing
collie
domestic dog
ears down
fur
genitals
greyscale
hair
herding dog
hi res
human
male
mammal
mid-transformation
monochrome
partially clothed
pastoral dog
pawpads
penis
pivoted ears
post-transformation
rovak
sheath
sheepdog
shocked
short hair
simple background
sitting on floor
solo
tongue
tongue out
transformation
transformation sequence
white background