Anyway, while she was showing off her latest line, she ended up having a mini reunion with her former Hills costar Heidi Montag.
They've both come a long way since this:
And this:
But despite all the reality show drama and just life in general, they've still remained close friends. And now that Heidi is 8 months pregnant, they have even more in common.
Kristin, who's a proud married mother of three, spoke to ET about her relationship with Heidi and others from her time on MTV.
"I talk to Heidi and Audrina [Patridge] all the time. Both Alexes from Laguna, who have babies. Literally, everyone has become a mom. It's really cool to see."
Umm, is anyone else thinking what we're thinking? A new reality show about their lives as moms!