What is the standard of pleading in a sexual assault case?

allegations which are contradicted by documents referred to in the complaint," and does "not . . . necessarily assume the truth of legal conclusions merely because they are cast in the form of factual allegations." Warren v. Fox Family Worldwide, Inc., 328 F.3d 1136, 1139 (9th Cir. 2003) (citations and quotation marks omitted). To meet the ordinary pleading standard and avoid dismissal, a complaint must plead "enough facts to state a claim that is plausible on its face." Twombly, 550 U.S. at 570.