Robyn Lively gushes over 'rich' relationship with sister Blake Lively

Robyn Lively and Blake Lively are bonded closely despite their significant age difference.

The ‘80s star is the daughter of talent manager Elaine Lively and her first husband Ronald, while the Gossip Girl alum’s father is late actor Ernie Lively.

Speaking of her relationship with her baby sister, the Cobra Kai star told Fox that the age difference now feels “non-existent” since Blake, 34, became a mom.

"We have so many similarities. Our relationship is on a deeper level. We used to help each other with our projects and lines, things like that. Now we’re doing the mom thing together," the 51-year-old gushed.

The Teen Witch actress revealed their relationship has gotten “richer and fuller,” thanks to their children who have only made them closer.

I genuinely feel like her children are mine as if I gave birth to them, and vice versa," Robyn shared. "We’re like, ‘Your children are mine too.’ Our relationship has only gotten richer and fuller."

When it comes to giving parenting advice, Robyn insisted it is not needed noting that both women are very in tune with each other’s children.