Kris Jenner spoke about Bruce Jenner's transition and is "completely supportive" of her ex Credit: Araya Diaz/WireImage

Kris Jenner might have taken a while to talk out about Bruce Jenner's desire to transition from male to female — but now she wants the world to know she’s totally behind her ex-husband.

Appearing at Kelly Rutherford's Children's Justice Campaign event in Beverly Hills on Tuesday, May 12, Jenner was happy to talk about her former husband's new journey in life, and insisted he and their entire extended family were taking his transition in their stride.

"[The] family's doing great, and Bruce is doing great. And everybody's super supportive," Kris told Us Weekly when asked how things were going for everyone in the wake of Bruce's heart-to-heart with Diane Sawyer last month.

And how is Kris herself adjusting to the situation? "Good," she told reporters. "[I'm] really happy for him,” she added.

Kris’ comments come days after her daughter, Kim Kardashian, spoke out about the positive place her whole family was in at present, during a book signing for her new book Selfish at Barnes & Noble in Los Angeles last Friday, May 8.

"My mom is doing really good. We’re really excited," Kardashian, 34, told reporters at the time. "I was with Bruce yesterday and we were just saying what an exciting time in his life this is. And everyone, including my mom, we're just so happy he can be himself and happy."

Kris’ appearance at last night’s Children’s Justice Campaign event was both to offer her own personal support to Gossip Girl star Rutherford, who has been fighting a six-year international custody battle with her ex Daniel Giersch, and also that of her whole family.

"I just followed the story for so long and felt so compelled to give her the support of our family," Kris told Us. "We felt so badly about what's happened and just as a mom, I can't even imagine the trauma that I would feel if my kids were taken away or I couldn't have access to my kids when they were 3 and 5 years old," she continued.

"I don't think I could bear being separated from my children, for any length of time," the momager added. "So I'm just here to support her and just offer any amount of comfort that we can give. And hopefully, she can find some great support, even on the political side.”