5 times birthday babes Kris and Kendall were twinning

Time for a "Who wore it best?": Mother-daughter edition.

This week marks a birthday duo of epic proportions: Kendall Jenner turns 20 on Tuesday, shortly followed by her mother, Kris Jenner's, 60th birthday on Thursday. Kris is known for delving into her daughters' closets (really, who wouldn't?) and the soon-to-be 60-year-old can still totally rock the latest trends.

Here are 5 times Kris and Kendall proved the old adage "like mother, like daughter":

1. When they twinned in angelic (yet professional) white

2. When they flaunted matching red-hot, thigh-high splits

3. When they sported nearly identical Balmain ensembles

4. When they were feeling dark and silky

5. And when they preferred their trousers to be see-through

Happy birthday, Jenners! It will no doubt be a celebration of Kardashian/Jenner proportions. But maybe coordinate outfits ahead of time?