Kendall Jenner hangs out with nieces North, Penelope on St. Barts beach

Kendall Jenner wearing plaid bikini while spending some quality time with Kim's daughter two-year-old North West and Kourtney's daughter Penelope Disick on St. Barts beach on Thursday afternoon August 20

The 19-year-old model posed for pictures with her sister Kourtney Kardashian capturing all the angles on the day.

The Kardashian clan are enjoying a family summer vacation in St Bart this week.