rule 34 animal genitalia animal penis balls big balls black balls blue eyes blurred background brown body brown fur day detailed detailed background detailed fur draft dripping equid equine equine genitalia equine penis feral fur genitals glans grass half erect hi res hooves cock looking at viewer male mammal medial ring mud outside partially submerged penis plant quadruped scarlanya semi erect shaded sky solo splash tahoe tree unflared vein veiny muscles water wet wet body wet fur 7540746