When Sheldon approaches Georgie for the "other half" of the equation, Georgie is understandably horrified and confused. The comedic tension peaks when Sheldon tries to explain the procedure to Missy. It is here that the show deftly navigates the "TV-PG" rating. Missy realizes she doesn't actually understand what she is agreeing to sell. When she asks what an "egg" actually entails, Sheldon obliviously launches into a graphic explanation of the harvesting procedure.
Missy immediately bails on the deal, revolted by the reality of medical science, while Sheldon remains baffled that his subjects are unwilling to suffer for the advancement of the species. It is a funny, albeit slightly uncomfortable, reminder that Sheldon views people as data points rather than family members. young sheldon s02e11 webdl