FURVERT!

absurd_res anthro black_body black_fur canid canine canis duo erection fur genitals hi_res humanoid_genitalia humanoid_penis larger_anthro larger_male male male/male mammal muscular muscular_anthro muscular_bottom muscular_male nude penis red_eyes sex size_difference small_top_big_bottom tsundora13 tsundora4 wolf wolf_butler wolf_butler_and_his_cat_master