Quotes from ‘The Propagation Proposition’

The Propagation Proposition

The Propagation Proposition
Season 12, Episode 12 - Aired January 10, 2019

Penny's ex-boyfriend, Zack (Brian Thomas Smith), and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu.

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