2016 2boys anal anal_sex animal_genitalia animal_penis anus armpits balls bottomless brown_fur canine canine_penis clothed clothing cum cum_on_face duo fur gay hair internal knot knotting lagomorph licking male mammal multicolored_fur multicolored_hair mustelid paws penetration penis predator/prey purple_nose rabbit redrusker sex sleepylp tongue tongue_out wolf yaoi