FURVERT!

3_fingers alien alien_humanoid animal_genitalia antennae_(anatomy)backpack bed bite biting_lip biting_own_lip clothed clothing dib_membrane duo ear_piercing erection eyewear fingers furniture genital_slit genitals glasses gloves green_body green_skin handwear hi_res human humanoid invader_zim irken kitket lips male male/male mammal nickelodeon not_furry pak penetration penis piercing red_eyes self_bite sex sitting slit_penetration slit_play smile smirk xenophilia zim_(invader_zim)