Rule 34 Dev - 2016 2boys 5_fingers all_fours animal_genitalia animal_penis anthro ass_up balls black_fur black_hair blue_eyes blue_hair blue_highlights blush border_collie breath brown_fur brown_hair buttjob canine canine_penis chest_tuft claws collie color cum duo erection fur furry furry_only green_eyes hair halftone_background hand_on_ass heart highlights hug kiggles looking_back looking_down male mammal multicolored_hair navel no_humans nude one_eye_closed open_mouth open_smile panting pattern_background pawpads penis pillow precum pubes raised_tail side_view simple_background smile tan_fur tongue tongue_out tuft watermark white_fur yaoi yuniwolfsky|2356452544