Significance of all of the titles of the episodes

Conjunctio - Clara double life - Liz and Ernie - balls jokes then did oral sex joke is part of the conjunctio thing (also see alchemy) - The most important stage of the process is called conjunctio, when the King and Queen engage in sexual intercourse. The result of this intercourse is the combination of the King and Queen into one being containing both of their attributes: the hermaphrodite.

In alchemy, coniunctio is the stage of combining opposing substances to create a new element:

also the opposite pairings around this Time Liz and Lenore Dud and Beth