abs animal_genitalia animal_penis anthro balls big_penis canine_genitalia canine_penis crotch_focus crotch_shot erection genitals knot knot_in_sheath male penis penis_focus photorealism presenting presenting_penis realistic realistic_fur realistic_lighting sheath solo spread_legs spreading urethra vein veiny_penis sugar_arrafel canid canine fox mammal absurd_res hi_res