Rule 34 Dev - anthro anthro_on_anthro balls barazoku blush butt butt_slap chest_tuft duo erection eye_contact facial_hair flaccid genitals hand_on_back hand_on_shoulder humanoid_genitalia humanoid_penis looking_at_another male male/male mature_anthro mature_male musclegut muscular muscular_anthro muscular_male mustache nervous nipples nude on_lap over_knee penis raised_tail sitting slap slightly_chubby spanking spanking_focus tail tail_between_legs tail_grab tuft knest canid canine canis domestic_dog mammal 2d_animation 5:4 animated black_and_white loop low_res monochrome short_playtime|16209159225