Rule34.GG

Regular 4 toes
all fours
anthro
anus
aoru
ass
ass up
bed
brown fur
canine
castrated
castration
claws
erection
eunuch
fur
green eyes
hindpaw
humanoid penis
looking at viewer
lying
male
male only
mammal
neutered
nude
on front
open mouth
paws
penis
precum
presenting
presenting hindquarters
raised tail
scar
smile
solo
wolf
woozy wolf