This episode introduces Missy Cooper, who becomes a recurring character and a major part of the prequel series Young Sheldon .
Missy mentions a childhood incident where Sheldon built a robot to keep her out of his room, even though Young Sheldon later established they shared a bedroom.
To settle who gets to ask Missy out first, the guys compete in a Wii Boxing match . Where to Watch
Leonard attempts to manipulate Sheldon by arguing that Missy should date someone with "superior DNA" to ensure the Cooper lineage continues with more geniuses.
Raj participates in a pharmaceutical study to overcome his selective mutism around women. The drug works but has visible side effects, including involuntary hand gestures.
You can officially stream The Big Bang Theory on major platforms like Max and Netflix (availability varies by region). Notable Trivia
The group is stunned to find a beautiful woman in Sheldon's office, only to discover she is his twin sister.