Beverley: Yes, and Sheldon sent me flowers. I will just pretend that Leonard's not withholding information. Leonard: I know. Leonard: What is it? One more time. Penny: Oh, Beverly, I can't talk to my boyfriend's mother about his pen1s. Scene: Leonard's car. Sheldon: No trouble at all. Well, that means he's either embarrassed about the relationship or he doesn't care enough about his mother to tell her he's in one. Your... your mother's coming?
Plan: A: Leonard's horror; Q: What is Leonard's reaction to his mother visiting? A: Sheldon's delight; Q: What is the reaction of Sheldon to Leonard's mother visiting? A: Penny; Q: Who is upset that Leonard has not told her about his mother's visit? A: their relationship; Q: What does Leonard's mother not know about Leonard and Penny? A: his parents' lives; Q: What does Leonard learn that Sheldon knows more about than he does? Summary: At Christmas, Leonard's mother visits, much to Leonard's horror and Sheldon's delight. Penny is upset to learn that Leonard has not told her about his mother's visit, nor his mother about their relationship, while Leonard learns that Sheldon appears to know more about his parents' lives than he does.