The Donation Oscillation Season 12, Episode 15 -  Aired February 7, 2019

The Donation Oscillation

Penny tries to seduce an abstaining Leonard to ruin his “donation” for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali’s canceled bachelor party into a couple’s trip aboard the “vomit comet”.

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Guest Stars: Keith Carradine as Wyatt, Brian Thomas Smith as Zack, Rati Gupta as Anu, Lindsey Kraft as Marissa, Eric Nenniger as Neil

Writers: Bill Prady (Story), Jeremy Howe (Story), Adam Faberman (Story), Steve Holland (Teleplay), Dave Goetsch (Teleplay), Maria Ferrari (Teleplay)

Director: Mark Cendrowski

Available on iTunes

Episode Notes