"Hey! Knock first! I'm changing!" Always annoying when you're practicing boobs and butt poses in your undies and then are rudely interrupting by somebody bursting into your room without knocking. (Ad for Vampi Vicious #2, Anarchy Studios) Vampi Anarchy Studios comics comic books boobs and butt pose gratuitous butts pantyshot gratuitous angles advertising promotional material rubber spines View the discussion thread.