animal_genitalia
animal_penis
anthro
duo
equid
equine
equine_genitalia
equine_penis
fellatio
genitals
half-erect
horse
intraspecies
licking
low_res
male
male/male
male_penetrated
male_penetrating
male_penetrating_male
mammal
muscular
oral
penetration
penile
penis
penis_lick
piercing
sca_sii
sex
tongue
tongue_out
