2016 5_fingers anal anal_sex anthro anthro_on_anthro barrakoda black_fur black_hair blue_fur canine chest_tuft claws clenched_teeth detailed_background digital_media_(artwork) door equine erection fluffy fluffy_tail fur furry furry_only hair hand_on_butt hi_res hooves horse long_hair looking_at_partner male mammal mane muscular no_humans patrikthedog penetration penis piledriver_position sex sofa striped_body stripes tattoo teeth tongue tongue_out tuft white_hair wolf yaoi