FURVERT!

alien alien_humanoid anal angry ass_up bdsm bodily_fluids bondage bound butt clothing dib_membrane dominant dominant_male duo ear_piercing erection eyes_closed eyewear facesitting genital_fluids genitals glasses gloves handwear hi_res human humanoid invader_zim irken looking_pleasured male male/male mammal monochrome multiple_images navel nickelodeon not_furry oral pak penis piercing precum rimming screaming sex simple_background sitting sitting_on_another solo spread_butt spreading submissive submissive_male sweat tapering_penis tongue tongue_out white_background zim_(invader_zim)