The 65-year-old former Olympian looked absolutely great in the curve-hugging look and tan heels. Caitlyn and Rhonda are believed to have seen Maze Runner: Scorch Trials in the early evening, before the reality star left alone at around 8:30.
In a new interview with WWD, Caitlyn's daughter, Kendall Jenner, revealed that she has known Caitlyn was a transgender woman for a very long time.
"It's an adjustment. It's something you have to get used to. But I've known since I was a kid," Kendall revealed. "He never confirmed it to me, but I’ve known for a very long time. It's the same person."
ET caught up with Emmy-winning Transparent creator, Jill Soloway, on Sunday, who opened up about her sweet and supportive relationship with Caitlyn.
"We text," said Jill. "I asked her if she was coming to the after party, she said, 'No.' She was racing cars this weekend."
"You know when you're a little kid and you're trying to cross the street, and it's really busy, and everybody holds hands and crosses the street together?" Jill continued. "That's what it's like with the trans community. We're all holding hands, we're all supporting each other -- we support Caitlyn, she supports us, and we're all crossing the street together."