May 15th marks the United Nations’ International Day of Families, and to celebrate it, we're introducing you to a remarkable pair of siblings. Last winter, Gilonne and Antonin Guigonnat realized their dream of competing together on the BMW IBU World Cup tour.

Despite a seven-year age gap, the French duo managed to secure spots on the highly competitive French team simultaneously. Gilonne, the younger of the two, secretly hoped that her older brother would not retire before she had the chance to join him on the world cup stage.

In this video, we put their knowledge of each other to the test, exploring their chemistry and even delving into topics like "who is mom's favorite?"