Rule 34 Dev - 2020 5_fingers abs animated anthro anthro_on_anthro ass ass_up balls biceps big_penis biped bovid canid canine caprine curved_horn duo erection fingers fluffy fluffy_tail frame_by_frame front_view fur furry grey_background greyscale half-closed_eyes hand_on_butt holding_penis horn imminent_sex klongi looking_at_butt looking_down loop low-angle_view lying male male/male mammal masturbation monochrome multicolored_body multicolored_fur narrowed_eyes nude on_front pecs penile penile_masturbation penis raised_tail simple_background sketch standing three-quarter_view tuft walking white_body white_fur|3964108752