That mommy-daughter bond! Pregnant Brie Bella‘s daughter, Birdie, is the “inspiration” for baby No. 2 with husband Daniel Bryan — as well as sister Nikki Bella‘s first child, an insider tells Life & Style exclusively. “They look at her and smile, grateful for this extended family that they’re starting,” the source gushes about the 3-year-old’s influence on her mama, 36, and aunt, also 36.

It also seems as though the toddler has her preferences in a sibling — but either way, she will probably end up with what she’s hoping for. “Birdie wants a little sister, of course, but if Nikki has a girl, then Birdie gets a little cousin. It’s a win-win for Birdie,” the insider continues. “Daniel loves his little girl, but he doesn’t hide the fact that he would like a son and a little brother for Birdie.”

Pregnant Nikki Bella and Brie Bella at Farmer's Market
ErnestoV93 / MEGA

As for Nikki and her fiancé, Artem Chigvintsev? They’re just grateful for every moment. “Artem and Nikki are still on cloud nine,” the source adds. “They just want a healthy baby.”

The retired WWE twins announced their joint pregnancies on January 29. “@thebriebella, this life just wants you and I to be twinning at everything we do. LOL,” Nikki wrote on Instagram while revealing the joyful news. “And even though we were shocked, beyond shocked, here’s another journey that I am so grateful to God to have you by my side. You have already been the best teacher!”

Considering this is Nikki’s first pregnancy and Brie’s second, it looks like the soon-to-be mama is relying on her sister for guidance. “Nikki and Brie are close, but the fact that they’re both pregnant at the same time has bonded them like never before,” a separate source revealed about the duo. “Brie’s done it before so Nikki is getting the benefit of having her best friend and sister to lean on for support and pregnancy advice.”

We have a feeling these two strong boss babes have it covered when it comes to trekking through their pregnancies — and at the end of the day, they definitely have each other. Pregnant sisters, for the win!