FURVERT!

anthro big_penis bigdad collaborative collaborative_fellatio collaborative_oral collaborative_sex duo_focus faceless_character faceless_human faceless_male fellatio female female_focus gaz_membrane genitals group human humanoid invader_zim knot male male/female mammal monochrome nickelodeon oral oral_penetration penetration penile penile_penetration penis sex tak_(invader_zim)