Sex Ed

Can Exposure To A Novel Partner Affect The Quantity And Quality Of Men’s Semen?

July 16, 2015 by Justin Lehmiller


In a new study published in Evolutionary Psychological Science, researchers examined whether the timing, quantity, and quality of men’s ejaculate changes when they masturbate to images of a familiar woman compared to a woman they have never seen before. The results (and the explanation behind them) are absolutely fascinating. For a look at the details of this study and what they found, check out my latest article over at Playboy.

While you’re there, check out some of my other work, including:

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Written by
Dr. Justin Lehmiller
Founder & Owner of Sex and Psychology

Dr. Justin Lehmiller is a social psychologist and Research Fellow at The Kinsey Institute. He runs the Sex and Psychology blog and podcast and is author of the popular book Tell Me What You Want. Dr. Lehmiller is an award-winning educator, and a prolific researcher who has published more than 50 academic works.

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