Kendall Jenner fantastics "Turquoise Bikini” Butt & Ass in Malibu

He became a big brother for the first time last weekend.
Kendall also seemed to be having a whale of a time as she chased the tot around, while showcasing her enviable washboard stomach and svelte figure.

The 16-year-old model spent yesterday entertaining the two-year-old tot on the beach in Malibu, California. (Read more and See more Pictures)