Kourtney Kardashian shows off her pins in black leggings as she chats on the phone while running errands

She was spotted out and about in the Sherman Oaks neighbourhood of Los Angeles on Friday.

And Kourtney Kardashian looked chic in a silky black bomber jacket and black leggings that complimented her slender legs and added to an illusion of height.

The 37-year-old stands a petite five foot tall but she didn't bother with high heels for her morning out, wearing sensible black sneakers.

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Hanging on the phone: Kourtney Kardashian was spotted out and about in the Sherman Oaks neighbourhood of Los Angeles on Friday showing off her lovely pins in leggings

Hanging on the phone: Kourtney Kardashian was spotted out and about in the Sherman Oaks neighbourhood of Los Angeles on Friday showing off her lovely pins in leggings

She smoothed her long brunette tresses back into a high ponytail and matched her outfit with a pair of round dark glasses.

Making sure she stayed hydrated, the reality star carried a large take-away beverage.

The multi-tasking mother was glue to her phone the whole time.

Kourtney has  shed pounds and tightened up their enviably slender figure to attain the perfect revenge body.   

Such a chatterbox: The 37-year-old strolled along with her phone glued to her cheek

Such a chatterbox: The 37-year-old strolled along with her phone glued to her cheek

Making sure she stays hydrated: The beautiful brunette carried a large take-out beverage
Making sure she stays hydrated: The beautiful brunette carried a large take-out beverage

Making sure she stays hydrated: The beautiful brunette carried a large take-out beverage 

Earlier, sister Khloé Kardashian, 32, shared Snapchat photos of herself and Kourtney working out with their trainer in a gym. 

The three photos show the sisters in athleisure wear as they take on a series of tough exercises.

Khloe, who stands a statuesque 5ft 10ins, showed off her curves in a skin-tight black and green body suit.

She dwarfed Kourtney, who made the most of her physique in a fitted T-shirt and shorts. 

And push: Khloé Kardashian shared Snapchat photos of herself and sister Kourtney working out with their trainer on Friday

And push: Khloé Kardashian shared Snapchat photos of herself and sister Kourtney working out with their trainer on Friday

And pull: The  32-year-old blonde and her brunette sibling worked on strengthening their arms and their cores

And pull: The  32-year-old blonde and her brunette sibling worked on strengthening their arms and their cores

Kourtney shares her three children Mason, seven, Penelope, four and two-year-old son Reign with her ex-fiance Scott Disick. 

They split mid 2015 when his hard-partying ways got too much for the Kardashian.

And it's no secret that the beautiful brunette has honed her own revenge body to get her own back on the 33-year-old.

In one picture, the sisters are pulling back on elastic bands to strengthen their arms and their cores.

Feline fine: Khloe added a pussycat filter to this Snapchat of Kourtenay, turning her into a cute smiling kitten

Feline fine: Khloe added a pussycat filter to this Snapchat of Kourtenay, turning her into a cute smiling kitten

In another they are doing backwards push ups in a sitting position off the knees of their workout partners.

The third. more whimsical photo shows a smiling Kourtney with a pussycat filter over her face, giving her cute cat ears, eyebrows, a little black nose and whiskers.

Fans can catch the 13th season of Keeping Up With The Kardashians when the reality show returns to E! for its 13th season on March 5.

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