Rule 34 Dev - anthro balls biped blep fur genitals hair horn long_ears looking_at_viewer male mouth_closed nude penis simple_background smile solo tongue tongue_out white_body white_fur aafox196 undertale undertale_(series) asriel_dreemurr boss_monster_(undertale) bovid caprine mammal 2020 4:3 digital_media_(artwork) hi_res signature|10208329215