USA - A US influencer has caused a stir with a curious and bizarrely entertaining video on Instagram .

In the clip posted by Louisa Melcher, she shows the moment when her family finds out live who the new Pope is - and the amazement is huge.

Because as it turns out, the newly elected head of the church, Leo XIV, is none other than her mother's childhood flirt!

The video shows a video call in which Louisa, her brother and her mother react to the news that the new Pope - Robert Prevost (69), who was elected to office on Thursday - had a romantic, if not clearly defined, relationship with Louisa's mother when she was 19 years old.

Louisa writes: "My family's real reaction when we found out the next pope is literally my mom's ex - when she was 19."

With loud laughter and incredulous amazement, the young woman shares this unexpected family story with her followers.

The post was viewed more than 15 million times within a few hours and went viral.