Sex and Psychology Podcast

Step into the sex lab

The Sex and Psychology Podcast, hosted by Kinsey Institute Research Fellow Dr. Justin Lehmiller, is here to help you understand the most important sex organ in the entire body: your brain. Each episode offers a deep dive into the psychology of sex and relationships, drawing upon expert interviews and Dr. Lehmiller’s extensive body of research. The Sex and Psychology Podcast is the sex ed you never got in school–and won’t find anywhere else. Catch up with the latest episodes below, and subscribe on your favorite podcast platform to keep up to date.

2 Million+ Downloads in 2023

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“Top 5 sexuality podcasts”

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Latest Episodes

April 7, 2026

Episode 490: Why People Say Yes To Sex They Don’t Want

Wanting sex and consenting to sex aren't the same thing. Sometimes we agree to sex we don’t want, and other times we turn down opportunities for sex we do want. Today, we're going to explore the distinction between wantedness and consent, including common reasons people agree to sex that they don’t actually desire. My guest is Dr. Kirsten Greer, a postdoctoral research fellow at the Kinsey Institute with the disability and sexual health initiative. Her research focuses on sexual consent, sexual violence, and sexuality and disability. Some of the specific topics we explore in this episode include:
  • What is the difference between wanting sex and consenting to sex?
  • Why do people sometimes turn down sex they genuinely desire?
  • What happens when there's a mismatch between wantedness and consent? How do people feel about that?
  • What does healthy sexual agency look like in practice?
You can learn more about Kirsten's work and check out her publications here. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors!  If you're ready to ditch the shady stuff and choose a libido supplement that’s effective and that you can feel confident about, it's time to check out Drive Boost. Visit vb.health and use code JUSTIN for 10% off.  Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you'll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today. ***

Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on FacebookTwitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Listen and stream all episodes on AppleSpotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!

Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest (Adam Zmith headshot by Jade Smith).
Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 490: Why People Say Yes To Sex They Don't Want
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April 3, 2026

Episode 489: How Poppers Changed Sex

Humans have always looked for ways to enhance sex, but some of the most popular tools weren’t even meant for that purpose at all. One drug, originally developed for heart conditions, made its way into nightlife and became closely tied to sex. In today’s episode, we’re talking all about poppers, including how they work, how they became linked to pleasure, and why they’re still so controversial.

I am joined once again by Adam Zmith, a writer and multi-format producer. His books include Deep Sniff: A History of Poppers and Queer Futures, as well as Solemates: A History of Our Fetish for Feet. Some of the specific topics we explore include:
  • What exactly are poppers?
  • Why do people use them to enhance sex?
  • How did they become embedded in queer nightlife?
  • What myths have fueled stigma around them?
  • Are there any risks in using them?
Check out Adam's website to learn more about his work. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors!  If you're looking to gain a broad understanding of human sexuality or refresh your knowledge, check out the upcoming Human Sexuality Intensive courses at the Kinsey Institute: https://kinseyinstitute.org/learning/human-sexuality-intensive.html  ***

Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on FacebookTwitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Listen and stream all episodes on AppleSpotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!

Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest (Adam Zmith headshot by Jade Smith).
Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 489: How Poppers Changed Sex
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March 31, 2026

Episode 488: How Feet Became A Popular Fetish

When I surveyed more than 4,000 adults about their sexual fantasies for my book Tell Me What You Want, I found that 1 in 7 people had fantasized about feet or toes. In today’s episode, we’re exploring the fascinating history of foot fetishes, the psychology behind attraction to feet, and why men seem more likely to report this interest than women. My guest is Adam Zmith is a writer and multi-format producer. His books include Deep Sniff: A History of Poppers and Queer Futures, as well as Solemates: A History of Our Fetish for Feet. Some of the specific topics we explore in this episode include:
  • How long have foot fetishes existed?
  • What draws people to feet in the first place?
  • How common are foot fetishes?
  • Why do women's feet seem to be fetishized more than men's?
Check out Adam's website to learn more about his work. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors!  Passionate about building a career in sexuality? Check out the Sexual Health Alliance. With SHA, you'll connect with world-class experts and join an engaged community of sexuality professionals from around the world. Visit SexualHealthAlliance.com and start building the sexuality career of your dreams today. ***

Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on FacebookTwitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Listen and stream all episodes on AppleSpotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!

Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest (Adam Zmith headshot by Jade Smith).
Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 488: How Feet Became A Popular Fetish
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March 27, 2026

Episode 487: How To Make Online Dating Work For You

Dating apps make it seem like you can swipe your way to the perfect partner. But attraction isn’t something we can fully predict from profiles. It emerges through interaction. So what happens when we try to optimize something that’s inherently unpredictable? In this episode, we break down the psychology of online dating and how to approach it more effectively.

I am joined once again by Dr. Paul Eastwick, a Professor of Psychology at UC Davis, where he serves as the head of the Social-Personality Psychology program. He hosts the popular podcast Love Factually with his long-time colleague, Eli Finkel, where they analyze rom-coms and romantic dramas from the perspective of relationship science. Paul is also author of the new book Bonded by Evolution. Some of the specific topics we explore in this episode include:
  • Why might using multiple dating strategies improve your odds?
  • Can AI predict attraction better than we can ourselves?
  • How accurate are first impressions on dating apps?
  • Is there an optimal timeline for meeting in person after matching?
  • What strategies lead to healthier online dating experiences?
You can check out Paul's website to learn more about his work. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors! 

Head to https://paired.com/JUSTIN and download the #1 app for couples to start maintaining your lasting love today.

If you're looking to gain a broad understanding of human sexuality or refresh your knowledge, check out the upcoming Human Sexuality Intensive courses at the Kinsey Institute: https://kinseyinstitute.org/learning/human-sexuality-intensive.html  ***

Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on FacebookTwitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Listen and stream all episodes on AppleSpotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!

Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 487: How To Make Online Dating Work For You
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March 24, 2026

Episode 486: Why We’re So Bad At Predicting Romantic Compatibility

Most of us think we know what we’re looking for in a partner. We have a “type,” a mental checklist, and the belief that if someone checks enough boxes, everything else will fall into place. But decades of research suggest that attraction and compatibility don’t work that way. In this episode, we’ll unpack how attraction really unfolds and why chemistry is so hard to predict.

My guest is Dr. Paul Eastwick, a Professor of Psychology at UC Davis, where he serves as the head of the Social-Personality Psychology program. He hosts the popular podcast Love Factually with his long-time colleague, Eli Finkel, where they analyze rom-coms and romantic dramas from the perspective of relationship science. Paul is also author of the new book Bonded by Evolution. Some of the specific topics we explore in this episode include:
  • What’s the link between what we say we want and who we actually fall for?
  • Do we really have a "type" when it comes to romantic partners?
  • Why is it so hard to predict whether two people will feel a spark?
  • How can we improve our chances of finding a compatible partner?
  • How much does long-term satisfaction depend on initial compatibility?
You can check out Paul's website to learn more about his work. Got a sex question? Send me a podcast voicemail to have it answered on a future episode at speakpipe.com/sexandpsychology. *** Thank you to our sponsors! 

Discover how care in every detail transforms simple routines into moments of true comfort and ease. Head to cozyearth.com and use my code JUSTIN for up to 20% off. Experience the craft behind the comfort with Cozy Earth, and make every day feel intentional.

***

Want to learn more about Sex and Psychology? Click here for previous articles or follow the blog on FacebookTwitter, or Bluesky to receive updates. You can also follow Dr. Lehmiller on YouTube and Instagram.

Listen and stream all episodes on AppleSpotify, or Amazon. Subscribe to automatically receive new episodes and please rate and review the podcast!

Credits: Precision Podcasting (Podcast editing) and Shutterstock/Florian (Music). Image created with Canva; photos used with permission of guest.
Sex and Psychology Podcast
Sex and Psychology Podcast
Episode 486: Why We're So Bad At Predicting Romantic Compatibility
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Let's Collab

Want to be a guest on the Sex and Psychology Podcast, sponsor a podcast, or do you have a question or topic you want to see addressed on the podcast? Send Justin an email to start the conversation.

Email Justin