Can We Make Polyamory Work and Save Our Relationship?

 https://goodmenproject.com/featured-content/can-we-make-polyamory-work-and-save-our-relationship/

Swingers: Inside the Secret World of Provocative Parties and Couples Who 'Swap'

https://abcnews.go.com/Entertainment/swingers-inside-secret-world-provocative-parties-couples-swap/story?id=16396730 

How to set sexual boundaries

https://mashable.com/article/how-to-set-sexual-boundaries