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".
Season 12 Episode 15 of The Big Bang Theory was watched by 13,970,000 viewers, resulting in a 2.60 rating in the 18-49 demographic.
Is The Big Bang Theory Renewed or Cancelled for Season 13?
s12e01 - The Conjugal Configuration
s12e02 - The Wedding Gift Wormhole
s12e03 - The Procreation Calculation
s12e04 - The Tam Turbulence
s12e05 - The Planetarium Collision
s12e06 - The Imitation Perturbation
s12e07 - The Grant Allocation Derivation
s12e08 - The Consummation Deviation
s12e09 - The Citation Negation
s12e10 - The VCR Illumination
s12e11 - The Paintball Scattering
s12e12 - The Propagation Proposition
s12e13 - The Confirmation Polarization
s12e14 - The Meteorite Manifestation
s12e15 - The Donation Oscillation
s12e16 - The D & D Vortex
s12e17 - The Conference Valuation
s12e18 - The Laureate Accumulation
s12e19 - The Inspiration Deprivation
s12e20 - The Decision Reverberation
s12e21 - The Plagiarism Schism
s12e22 - The Maternal Conclusion
s12e23 - The Change Constant
s12e24 - The Stockholm Syndrome
The Big Bang Theory is a comedy series about four young scientists who know all about the world of physics, and one girl, who gives the physics world a real spin.
Leonard Hofstadter is a smart guy who tries his best to complete his research and become famous for his work while also attempting to be the most socially-interacting guy in their friend group. Sheldon Cooper is one of the world's smartest men with an intellectual capacity through the roof and a language with scientific words normal people only have one comment to ('What-). Howard Wolowitz is an engineer with his mind partially on science, but mostly on women. He always tries his best to impress a girl and get his share of sexual intercourses, but he always manages to screw up somehow, probably with his bad knowledge of treating women in a bad matter. Rajesh Koothrappali is an Indian scientist performing experiments on black holes, outer space, life on other planets and not to mention string theory. Raj is mostly known for his Selective Mutism, in other words, his fear of speaking to women, making social interaction difficult for him. Finally, there's Penny.
Penny is the gorgeous girl next-door to Leonard and Sheldon's apartment, and though she does not have any knowledge in physics or science, she makes success by being a funny character frequently having hilarious comments and on- and off-going relationships.