Aired: Feb 07, 2019 , Thursday at 20:00 on CBS
Currently Airing
Episode Summary: 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.
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