Index/People/Justin Lehmiller

Justin Lehmiller

American social psychologist & sex researcher

Fact-Checks

7 results
Nov 24, 2025
Most Viewed

What percentage of heterosexual men have tried pegging?

Available reporting and surveys do not give a single, nationally representative percentage of heterosexual men who have tried pegging; instead, multiple sources report related measures (anal sex exper...

Dec 14, 2025
Most Viewed

What are the psychological and relationship outcomes for couples practicing cuckolding?

Research and reporting indicate many people fantasize about cuckolding—surveys found about 58% of men report such fantasies . Empirical studies and journalism suggest acting on cuckolding fantasies ca...

Jan 27, 2026
Most Viewed

What kinks do women prefer vs men

Research and popular surveys show overlap as well as : -related fantasies rank very high for both men and women, while men report higher rates of taboo and fetish interests (voyeurism, exhibitionism, ...

Nov 15, 2025

Do life experiences affect sexual kinks for women over time?

Research and expert commentary in the provided sources indicate that sexual interests — including kinks and fetishes — are common, varied, and often develop or change over time through experiences, le...

Jan 19, 2026

How do researchers define and measure cuckolding in relationship surveys?

Researchers typically define "cuckolding" as a sexual interest or practice in which a person obtains arousal from their romantic partner engaging in sexual activity with someone else, and they measure...

Dec 13, 2025

What percentage of couples specifically include cuckold or hotwife dynamics in consensual non-monogamy?

Available reporting and niche-website coverage indicate cuckold and hotwife dynamics are recognized subtypes of consensual non‑monogamy (CNM) and are common as fantasies — for example, Justin Lehmille...

Feb 3, 2026

How common are cuckold relationships

—broadly, a consensual kink or relationship dynamic in which one partner derives from their partner having sex with others—is far more common as a fantasy than as an practiced arrangement, and rigorou...