2015analanal_penetrationanatomically_correctanatomically_correct_genitaliaanatomically_correct_penisanimal_genitaliaanimal_penisballsblack_ballsblack_penisbridlebrown_bodybrown_furbrown_hairbrown_taildreamworksduoequidequineequine_genitaliaequine_peniserectioneyes_closedferalferal_on_feralflared_penisfrom_behind_positionfurgenitalshairhi_reshorseklaus_dobermanmalemale/malemale_penetratedmale_penetratingmale_penetrating_malemammalmountingnudeoutsidepenetrationpenisquadrupedreinssaddlesexspirit:_stallion_of_the_cimarronspirit_(cimarron)tail