The Big Bang Theory › Season 12

S12 E15: 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.

Air date	Feb 7, 2019
Runtime	22 minutes
TMDB rating	★ 6.8/10