Kourtney Kardashian's

The "Keeping Up with the Kardashians" star posted the sweetest pic with her daughter Penelope via Instagram on Monday,

Posing in a gold string bikini, the mother-of-two looked super glamorous as she soaked up the sun with her adorable little girl laying on top of her growing baby bump.

The Kardashian/Jenner clan's currently filming in the Hamptons for their new reality spin-off "Kardashians Take the Hamptons," so we're guessing that's where Kourt spent her weekend poolside.

We gotta hand it to the 35-year-old -- she looks amazing! What do you think of Kourtney's latest pic?

Tell toofab in the comment section below and click "Launch Gallery" above to see even more Kardashian family photos!