Rule 34 Dev - anal anthro bdsm black_body black_fur brown_body brown_fur butt collar dominant dominant_male duo erection facesitting fur genitals grey_body grey_fur grey_tail leash leashed_top male male/male male_penetrated male_penetrating male_penetrating_male multicolored_body multicolored_fur nude oral penetration penis power_bottom rimming sex simple_background sitting_on_another submissive submissive_male tail tattoo two_tone_body two_tone_fur horrorbuns makeinu87 nevarrio canid canine canis domestic_dog mammal mastiff molosser rottweiler wolf 2013|1961974105