FURVERT!

2014 anatomically_correct anatomically_correct_anus anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anus backsack balls big_penis brown_body brown_fur brown_hair brown_penis butt equid equine equine_anus equine_genitalia equine_penis erection feral fur genitals hair half-closed_eyes horse looking_back male mammal medial_ring narrowed_eyes penis presenting presenting_hindquarters puffy_anus quadruped rainstorm_(marefurryfan)raised_leg raised_tail rear_view simple_background solo tail tongue tongue_out truegrave9 vein veiny_penis