They fell in love - then had to check they weren't brother and sister

Arthur Kermalvezen, conceived by anonymous sperm donor, experienced a peculiar situation when he fell in love with Audrey, another donor-conceived woman he met at an activist gathering in 2010. Though a romantic bond seemed evident at first sight, the pair's biological connection raised doubts given the possibility of shared paternity among multiple sperm donors in Paris during the early 1970s. Due to restrictive French laws, the couple struggled to obtain definitive answers about their paternity.

These laws, enacted in 1994, prohibited private individuals from conducting genetic tests due to concerns over data privacy and family disputes. Consequently, France remained the only European country where accessing genetic information for donor-conceived individuals was criminalized. Despite these obstacles, Audrey, a bioethics lawyer, pursued legal action to uncover her donor's identity and determine if he had any living relatives who could also be Arthur's potential half-siblings.

After years of persistent legal battles, the couple married in 2015. However, the couple's curiosity was not entirely assuaged until shortly before the birth of their first child, when a doctor conducted a clandestine genetic test. The test revealed that the donors were not the same individual, thus settling the question of siblinghood. Unbeknownst to them, a doctor had breached the law to provide this crucial information.

Despite this resolution, Arthur still harbored doubts, prompting them to perform a home DNA test. The results revealed an unexpected twist: Audrey discovered that among her DNA matches was a woman named Sophie, whom she had represented in court over legal rights pertaining to donor conception. The two women were indeed biological sisters, connected through a shared sperm donor who had since passed away.

Their story, chronicled by Arthur's book and Audrey's legal campaign, contributed to significant changes in French laws governing donor conception, ultimately expanding access to genetic information for affected individuals. This groundbreaking case not only illuminated the complexities surrounding donor-conceived families but also underscored the importance of legal reform to safeguard the rights of those born through this means.