The Olympian's three stepdaughters learned the news after other family members were told, a Kardashian insider tells PEOPLE
His lifelong secret now out in the open, Bruce Jenner faces different reactions to his transition from his famous family. Subscribe now for instant access to all the details on the divided Kardashians and Jenners, only in PEOPLE.
But lately that relationship has been tested as the gap widens between the Jenner and Kardashian families.
In recent months, Jenner’s transgender journey has made headlines around the world – and although they are supportive, his stepdaughters have also struggled with the news.
That’s in contrast to Jenner’s children from his previous marriages – Burt, 36, Cassandra, 34, Brandon, 33, and Brody, 31 – who had known about the possibility of their dad’s transition “for years,” says a source close to them.
As for the two daughters he shares with Kris – Kendall, 19, and Kylie, 17 – “they are having a hard time with the transition,” adds the family insider. “They’re very supportive, but it’s just not an easy situation.”
• Reporting by JENNIFER GARCIA
For much more on how Bruce’s family is handling his transgender journey, pick up this week’s issue of PEOPLE, on newsstands Friday