abs anus balls bara barazoku big_ass big_balls big_butt big_penis butt crouching erection gaping gaping_anus genitals hands_on_knees hands_on_legs low-angle_view male muscular muscular_humanoid muscular_male nightmare_fuel nipples penis presenting puffy_anus sharp_teeth solo stranger_things teeth vein veiny_penis worm's-eye_view rulethony34tano_(director) demogorgon humanoid monster