Though they have 45 years between them, Christie Brinkley and her daughter could pass for twins!

In a fun new Mother's Day ad campaign for clothing brand Peter Alexander, the former supermodel, 61, and her youngest child, Sailor, 16, appear in several photos together — and the pair have never looked more stunning.

christie brinkley and sailor brinkley cook
Peter Alexander

In the photos, the blonde beauties can be seen playfully posing together wearing the brand's stylish and snuggly pajamas. In some of the cute snapshots, the mother-daughter duo are even pictured with their beloved dog, Chester.

Related: Christie Brinkley Nurses a Black Eye — After Trying to Save a Bird!

This isn't the first time Christie and Sailor have modeled together — they were previously photographed side-by-side on a 2013 cover of 'Bella NYC,' shortly after the teenager decided to pursue a career in modeling just like her famous mom.

christie brinkley and sailor brinkley cook
Peter Alexander

Sailor is Christie's youngest child with ex-husband Peter Cook. The couple, who were married from 1996 to 2008, are also parents to a 19-year-old son, Jack. The star additionally has an older daughter, singer Alexa Ray Joel, 29, with her first husband, Billy Joel, 65. Christie was hitched to the 'Uptown Girl' singer from 1985 to 1994.