Rule 34 Dev - ! 2013 ? alien backpack bed bedding being_watched blush closed_eyes clothed clothing comic dib drooling human humanoid_penis invader_zim irken licking licking_lips lier_magician lying male mammal masturbation moan open_mouth outside penile_masturbation penis pillow precum purple_eyes saliva shocked shorts signature smooth_skin speech_bubble sweat tongue tongue_out zim|2386989176