Rule 34 Dev - armpit armpit_hair armpits arms_up balls big_balls big_penis boner chest_hair condom condom_on_penis erection flexing fully_clothed glasses hironobu_(nioseptem) male male_only monochrome multiple_views muscles musk nioseptem penis proud_of_his_cock solo solo_male sweat sweat_stain sweating sweaty|7816515992