A break-up never looked so good.  Fresh off her big split from Djimon Hounsou, Kimora Lee Simmons joined her ex-husband Russell Simmons and their daughters in St. Barths.  And chick wasn't doing anybody's grieving as she threw on a hot red bikini to show the actor what he's missing.  Check out pics of the Simmons girls living it up in the French Caribbean inside..

O hey there KiKi.  The 37-year-old mom of three showed off her slim & trim bikini bod on the beaches of St. Barths yesterday.  It was the Simmons fam's annual Christmas vacay--the same one Djimon attended for the years he and Kimora were together.
But KiKi was flying solo this time around and seems to be loving life as a newly single lady.  She was spotted frolicking around in the ocean with her cute daughters Aoki and Ming Lee.  And having a blast:
 

And we're not mad at the JustFab.com President getting back to her modelesque days:

Fab.

Kimora posted a pic of herself, her girls and tot Kenzo by the sea shore.  Fab Holiday times!