Kourtney Kardashian proves she's winning the battle of the baby bulge as she cinches in waist with belted denim dress

She gave birth to her second child, a girl named Penelope, in July.

And already Kourtney Kardashian is well on track to reaching her pre-pregnancy weight.

The reality TV star – who also has a son Mason, two, with businessman Scott Disick – showed off her shrinking waist on Friday in Miami, Florida.

  

The 33-year-old emphasised her frame as she headed back to her hotel with her family.

She wore a denim dress which she teamed with a wide black belt to help nip her in at the midriff.

Kardashian teamed the ensemble with nude high heel Christian Louboutin shoes as she pushed her little girl in a stroller.

Kourtney – who wore the top of her hair pulled back and away from her face – shielded her youngest child from the sun rays with a pink blanket.

While she was accompanied by her long-time boyfriend, Scott, their first born child sat the day out.

The mother-of-two recently inspired her younger sister Kim to drop six pounds in weight.