animal_genitalia
animal_penis
anthro
balls
big_balls
clothed
clothing
equid
equine
equine_genitalia
equine_penis
erection
genitals
grin
hi_res
horse
looking_at_viewer
male
mammal
megfluff
muscular
muscular_anthro
muscular_male
penis
presenting
presenting_penis
skimpy
smile
solo
spread_legs
spreading
tail
thong
underwear
