Kourtney Kardashian ran errands in Beverly Hills on Tuesday, and is it just us, or is the mother of three looking trimmer than ever? Must have been all that time she spent chasing Justin Bieber around town...

Kourt wore a head to toe nude ensemble, and on Monday night she went with an even more daring outfit when she wore a see-through bra with a see-through top. And the funny thing was, Kourt was partying with none other than Hailey Baldwin, who also had a fling (or still is) with Bieber.

Baldwin went to Anguilla with Biebs for New Year’s, and after taking a peek at some of their Instagram photos, it seems like that romance is back on. Maybe Kourt's over it?