FURVERT!

anthro biped bulge bulge_from_behind butt clothed clothing detailed_background equid equine grin horse kurtis496 looking_at_viewer looking_back looking_back_at_viewer male male_anthro mammal muscular muscular_anthro muscular_butt muscular_male panties panties_only presenting presenting_hindquarters raised_tail secretariat sky smile solo string_panties tail teasing teasing_viewer topless underwear underwear_only