Aziz Ansari, Sarah Silverman, Seth Rogen, Busy Philipps, and others roast James Franco with Comedy Central; Christa B. Allen, Marvin Scott Jarrett, and more join cover star Emily VanCamp for the NYLON + ASOS September fashion issue celebration; Vanessa Hudgens, Rashida Jones, and Samantha Ronson celebrate California style with Lucky Brand—get all of this plus much more from L.A.'s top weekend events in this installment of Last Night's Parties.