FURVERT!

anal anal_fisting anal_penetration animal_genitalia animal_penis anthro anus balls belly butt duo equid equine equine_genitalia equine_penis eyes_closed feet fisting furniture genitals hooves horse horseshoe kneeling male male/male mammal medial_ring monochrome musclegut muscular mustelid nipples otter otter_tail pandottermon penetration penis penis_against_cheek puffy_anus raised_leg sofa vein veiny_penis