She is said to be getting 'serious' with her younger boyfriend Younes Bendjima.
And Kourtney Kardashian showed her beau, 24, was part of the family when he joined her on a sunny walk with her daughter Penelope in Studio City on Sunday.
The Keeping Up With The Kardashians star, 38, flaunted her impressive abs in a crop top as she affectionately held the hand of her five-year-old daughter.
Scroll down for video
Abs-olutely fantastic mum! Kourtney Kardashian flaunted her taut stomach in crop top as she enjoys walk with her daughter Penelope, 5, and Younes Bendjima in Studio City on Sunday
Mother-of-three Kourtney highlighted her incredibly petite figure with her double buckle belt worn to bring her trousers in at the waist.
Scraping her raven tresses back, the reality star shielded her eyes with kooky sunglasses.
Kourtney's daughter Penelope looked adorable in a bright floral bomber jacket teamed with trackies and fluffy backless slippers.
The little girl was delighted with her vanilla ice cream to keep cool in the sweltering Los Angeles sunshine.
Super cute! Kourtney's daughter Penelope looked adorable in a bright floral bomber jacket teamed with trackies while she toted her vanilla ice cream
Younes was not far behind the duo showcased his love for boxing when he donned a Muhammad Ali sweater for their trip.
It is no surprise things are 'getting serious' between the lovebirds as the French model seemed to be ringing in 2018 with his stunning girlfriend.
A source told People: 'It’s definitely serious. No one thought their relationship would last this long, but Kourtney is very happy.
'Younes has met her kids. Kourtney’s family really likes him. He is the opposite of Scott. He doesn’t party, isn’t flashy and really treats Kourtney with a lot of respect. It’s obvious that he really cares about Kourtney.'