Louise and Jess meet for the first time and try to figure out how to form a sibling bond with a stranger. Meantime, Louise speaks to others who have already navigated new-found half-brother/sister relationships.
But new siblings aren't the only DNA discoveries that lie in store for Louise.
You can follow You Look Like Me on Twitter and Instagram: @YouLookLikeMe_
Louise is on Twitter and Instagram @LouiseJoUK
You Look Like Me is hosted by Louise McLoughlin, edited by Tamsin Hughes, and recorded in lockdown