FURVERT!

3:4 animal_genitalia animal_penis anthro armpit_hair ball_tuft balls body_hair canid canine canine_genitalia canine_penis canis erection genitals grin grinning_at_viewer hi_res knot looking_at_viewer looking_down looking_down_at_viewer low-angle_view male mammal monochrome nipples nude penis pubes smile smiling_at_viewer solo tischotter tuft wolf zuka_(zukawolf)