Rule 34 Dev - 2021 anthro ball_tuft balls big_penis circumcised dated domestic_ferret english_text erection genitals good_boy graded_penis hi_res humanoid_genitalia humanoid_penis looking_at_viewer male male_focus male_only mammal mustela mustelid musteline narrowed_eyes nik159 nude penis penis_grab signature simple_background smile smirk solo solo_male standing text true_musteline tuft vein white_background|5201263240