Yes, Monsignor is the ninth episode of Two and a Half Men's second season, which aired on November 22, 2004.
Plot
Charlie Harper reconnects with an ex-girlfriend, Lisa, who turns out to be divorced with a kid. Meanwhile, Alan Harper walks in on Charlie's date in the shower and she frighteningly attacks him and Jake Harper uses this situation to blackmail Alan. Alan must understand why Jake is slipping in school.
Title Quotation From
Lisa, when Charlie asks her to act like a Catholic schoolgirl in bed.