FURVERT!

abs animal_genitalia animal_penis anthro anus athletic backsack balls biceps big_penis biped butt equid equine equine_genitalia equine_penis erection flared_penis fur genitals horse looking_at_viewer male mammal mooning muscular muscular_anthro muscular_male nude pecs penis pose presenting presenting_hindquarters puffy_anus purple_eyes raised_tail ronin-nc solo standing tail thick_penis vein