Bill Cosby admitted to plying teens with booze and drugs before having sex with them, and to having girls regularly dispatched to him by a modeling agency, newly unearthed court papers show. The comic said that at one point in his career, the agency would provide “five or six” young women each week, according to depositions he gave in 2005 and 2006 for a lawsuit. Among other revelations made by Cosby under questioning by lawyers for Andrea Constand, who claims he sexually assaulted her in 2004, was the description of a 1976 encounter with a 19-year-old model named Therese Picking.