And now she's under consideration for a position at our university. Elizabeth: Interesting choices. Howard: She doesn't know she takes them. Howard: So you're saying the two of you are going to be sleeping in the same bed? I'm uncomfortable with you recommending that Leonard pursue having intercourse with Dr. Plimpton, who I assure you has better things to do. Leonard: Elizabeth? Leonard: Well, who wants to stay in a hotel? Penny: We just broke up. Raj: The cosmological physicist from Princeton? Scene: The apartment. Sheldon: Elizabeth's my friend, and you're playing with her! Sheldon: Get it together, man. Sit over there. Where is she going to sleep?
Plan: A: Dr. Elizabeth Plimpton; Q: Who is the cosmological physicist from Princeton University? A: Sheldon; Q: Who invites Dr. Elizabeth Plimpton to stay at the apartment? A: an immediate interest; Q: What does Elizabeth take in Leonard? A: jealousy; Q: What emotion does Penny feel when Leonard sleeps with Elizabeth? A: very different ideas; Q: What do Leonard and Elizabeth have about the nature of their relationship? A: Raj; Q: Who does Elizabeth sleep with after Leonard? A: Howard; Q: Who has just broken up with Bernadette? Summary: Dr. Elizabeth Plimpton, a cosmological physicist from Princeton University, accepts Sheldon's invitation to stay over at the apartment during her visit to Caltech. However, she instead takes an immediate interest in Leonard, and the two end up sleeping together, inciting jealousy from Penny. However, it quickly becomes clear that Leonard and Elizabeth both have very different ideas about the nature of their relationship, when she sleeps with Raj and tries to convince Leonard and Howard (who has just broken up with Bernadette) to engage in a foursome with them.