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".

Episode Viewers and Ratings

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?

The Big Bang Theory Season 12 Episodes...

• 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 Show Summary

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.