At-home genealogy tests have become popular gifts. They're meant to reveal a person's genetic history, but sometimes the results can be surprising.
![Robin Christ and family photos](https://ichef.bbci.co.uk/news/200/cpsprodpb/CEF9/production/_104758925_p06w3lyj.jpg)
Click here to view "I found out my parents were swingers"
Robin Christ learned more about her family than she bargained for.
![Robin Christ and family photos](https://ichef.bbci.co.uk/news/200/cpsprodpb/CEF9/production/_104758925_p06w3lyj.jpg)
Click here to view "I found out my parents were swingers"