Wanting to know more about threesomes in their own right, he decided to conduct research on the subject himself. This led to a PhD about threesomes among two men and one woman (MMF), and a book on the same subject, to be published in 2018.

Why are threesomes worth studying? For one thing, they offer a window on attitudes toward gender roles and sexuality. “For women, for the longest time, there’s been almost an inherent expectation of their inherent bisexuality or gender fluidity,” Scoats notes. In some ways, in Western countries, women have more space to experiment with sexual orientation.