Rule 34 Dev - 1boy 2021 abs anthro barazoku black_underwear brown_body brown_fur bulge canid canine canis cheek_tuft clothed clothing detailed_background domestic_dog erection erection_pushing_underwear erection_under_clothing facial_tuft flexing fur hi_res humanoid_hands inner_ear_fluff inside kemono kumao male male_only mammal muscular muscular_anthro muscular_male solo tuft underwear underwear_only|5058967272