FURVERT!

4:3 ambiguous_feral ambiguous_gender anthro anus balls bestiality big_butt butt close-up darkened_genitalia duo equid equine erection feral foreskin fur genitals horse hot_dogging humanoid_genitalia humanoid_penis lizardlars male male_anthro mammal nude partially_retracted_foreskin penis puffy_anus quadruped sex summer_breeze vein veiny_penis