PlotAmy suggests moving into Sheldon's apartment after her's is flooded. Raj learns the gender of Howard and Bernadette's baby.
- This Is My Chair: First thing Sheldon does upon moving in with Amy is find his personal spot on the couch.Sheldon: Like an embassy in a foreign country, this seat is the sovereign soil of my bottom.
- Third Wheel: Raj comes with Howard and Bernadette to her gynecologist, feeling that he could be helpful as the son of one. Howard and Bernadette, however, just find it intrusive.