Ambyr, 31, and Randall, 48, share daughters London, 9, and Rylee, 5.
"Since you don’t want to answer my text messages, I’ll try here. Lala, I appreciate your love towards my children, but until you’re officially their stepmother please refrain from posting my children on social media! I hope you understand where I’m coming from. Many thanks," Ambyr wrote on her Instagram Stories.
The Vanderpump Rules star shared snapshots of the little girls playing with makeup, relaxing by the pool, and working out with her in the gym on her Instagram Stories on Monday, August 19.
Randall proposed to Lala in September 2018 and they plan to tie the knot in April 2020.
Lala revealed on SiriusXM’s The Jenny McCarthy Show that they plan to start a family as soon as they wed.
"All I want in my whole life is to be a mama. I’m meant to be a mom, for sure. We originally said two years after we get married, but Rand told me that we can start, like, right after we get married," she explained.
What do you think of Ambyr putting Lala on blast on social media? Sound off in the comments below!