PHOTOS: Stephanie Pratt & Holly Montag are Fro-Yo BFFs

It's a good thing that reality stars Holly Montag and Stephanie Pratt get along so well. After all, their respective siblings — Heidi Montag and Spencer Pratt are married (and trying to hint there's a bun in the oven?)

The sisters-in-law also appear to share an overwhelming hunger for frozen yogurt from the good folks at Yogen Fruz in Beverly Hills. The pair did certainly seem to relish — perhaps a little too much? — every bit of their frozen treats.