Kim Kardashian and her older sister Kourtney Kardashian sizzled in the California sunshine as they took their kids to a party in Malibu on Saturday.
For the day of fun, the 41-year-old reality star flashed her washboard abs in a black sports bra while the 43-year-old POOSH founder was all legs in a slip dress.
They were joined by Kim’s daughter North, nine, and son Saint, six, as well as Kourtney’s daughter Penelope, 10, and youngest son Reign, seven.
![Choices: For the day of fun, the 41-year-old reality star flashed her washboard abs in a black sports bra while the 43-year-old POOSH founder was all legs in a slip dress](https://i.dailymail.co.uk/1s/2022/07/10/07/60087895-10999141-Choices_For_the_day_of_fun_the_41_year_old_reality_star_flashed_-a-102_1657433874388.jpg)
Stylish sisters: Kim Kardashian and her older sister Kourtney Kardashian sizzled in the California sunshine as they took their kids to a party in Malibu on Saturday. For the day of fun, the 41-year-old reality star flashed her washboard abs in a black sports bra while the 43-year-old POOSH founder was all legs in a slip dress
Kim layered an oversized blue Balenciaga windbreaker over her skimpy sports bra and completed the look with a pair of matching basketball shorts.
The SKIMS founder wore her lengthy bleached blonde hair in a low ponytail and she concealed her sultry stare with a pair of chic designer shades.
She pounded the pavement in black flip flops and she carried her cellphone in hand.
Kourtney’s silky slip dress came in a vibrant shade of pink and was decked out in black lace on the hem and bust.
![Designer darling: Kim layered an oversized blue Balenciaga windbreaker over her skimpy sports bra and completed the look with a pair of matching basketball shorts; seen with daughter North West](https://i.dailymail.co.uk/1s/2022/07/10/07/60087865-10999141-Designer_darling_Kim_layered_an_oversized_blue_Balenciaga_windbr-a-81_1657433873698.jpg)
Designer darling: Kim layered an oversized blue Balenciaga windbreaker over her skimpy sports bra and completed the look with a pair of matching basketball shorts; seen with daughter North West
![Blondie: The SKIMS founder wore her lengthy bleached blonde hair in a low ponytail and she concealed her sultry stare with a pair of chic designer shades](https://i.dailymail.co.uk/1s/2022/07/10/07/60087875-10999141-Blondie_The_SKIMS_founder_wore_her_lengthy_bleached_blonde_hair_-a-84_1657433873800.jpg)
Blondie: The SKIMS founder wore her lengthy bleached blonde hair in a low ponytail and she concealed her sultry stare with a pair of chic designer shades
![Relaxed: She pounded the pavement in black flip flops and she carried her cellphone in hand](https://i.dailymail.co.uk/1s/2022/07/10/12/60087867-10999141-Relaxed_She_pounded_the_pavement_in_black_flip_flops_and_she_car-a-27_1657451694583.jpg)
![Relaxed: She pounded the pavement in black flip flops and she carried her cellphone in hand](https://i.dailymail.co.uk/1s/2022/07/10/07/60087861-10999141-Relaxed_She_pounded_the_pavement_in_black_flip_flops_and_she_car-a-83_1657433873781.jpg)
Relaxed: She pounded the pavement in black flip flops and she carried her cellphone in hand
![Treat: Kim treated eldest daughter North to Starbucks before their Malibu arrival as she was seen sipping on a bright pink drink](https://i.dailymail.co.uk/1s/2022/07/10/07/60087863-10999141-Treat_Kim_treated_eldest_daughter_North_to_Starbucks_before_thei-a-86_1657433873865.jpg)
Treat: Kim treated eldest daughter North to Starbucks before their Malibu arrival as she was seen sipping on a bright pink drink
![Inspired: Like her famous mother, North was also decked out in Balenciaga](https://i.dailymail.co.uk/1s/2022/07/10/07/60087869-10999141-Inspired_Like_her_famous_mother_North_was_also_decked_out_in_Bal-a-87_1657433873872.jpg)
Inspired: Like her famous mother, North was also decked out in Balenciaga
![Prada: North switched up her designer labels by rocking a black Prada bucket hat](https://i.dailymail.co.uk/1s/2022/07/10/07/60087871-10999141-Prada_North_switched_up_her_designer_labels_by_rocking_a_black_P-a-88_1657433873919.jpg)
Prada: North switched up her designer labels by rocking a black Prada bucket hat
She toted her essentials in a rhinestone Prada purse and she wore her sleek jaw-length hair straight and tucked behind her ears.
The sisters were captured making their way to the beach with their children, along with several other partygoers.
Kim treated eldest daughter North to Starbucks before their Malibu arrival as she was seen sipping on a bright pink drink.
![Wow! Kourtney's silky slip dress came in a vibrant shade of pink and was decked out in black lace on the hem and bust](https://i.dailymail.co.uk/1s/2022/07/10/07/60087885-10999141-Wow_Kourtney_s_silky_slip_dress_came_in_a_vibrant_shade_of_pink_-a-103_1657433874389.jpg)
Wow! Kourtney’s silky slip dress came in a vibrant shade of pink and was decked out in black lace on the hem and bust
![Mother-daughter duo: Kourtney was captured spending some quality time with daughter Penelope, who turned 10 on Friday](https://i.dailymail.co.uk/1s/2022/07/10/07/60087919-10999141-Mother_daughter_duo_Kourtney_was_captured_spending_some_quality_-a-105_1657433874422.jpg)
Mother-daughter duo: Kourtney was captured spending some quality time with daughter Penelope, who turned 10 on Friday
![Sleek: She wore her sleek jaw-length hair straight and tucked behind her ears](https://i.dailymail.co.uk/1s/2022/07/10/07/60087899-10999141-Sleek_She_wore_her_sleek_jaw_length_hair_straight_and_tucked_beh-a-104_1657433874403.jpg)
Sleek: She wore her sleek jaw-length hair straight and tucked behind her ears
![Dazzling: She toted her essentials in a rhinestone Prada purse](https://i.dailymail.co.uk/1s/2022/07/10/12/60087879-10999141-Dazzling_She_toted_her_essentials_in_a_rhinestone_Prada_purse-a-28_1657451694611.jpg)
Dazzling: She toted her essentials in a rhinestone Prada purse
![En route: The sisters were captured making their way to the beach with their children, along with several other partygoers](https://i.dailymail.co.uk/1s/2022/07/10/07/60087891-10999141-En_route_The_sisters_were_captured_making_their_way_to_the_beach-a-89_1657433873950.jpg)
En route: The sisters were captured making their way to the beach with their children, along with several other partygoers
![Fun in the sun: Kourtney chatted with a pal as the kids played in the sand](https://i.dailymail.co.uk/1s/2022/07/10/07/60087887-10999141-Fun_in_the_sun_Kourtney_chatted_with_a_pal_as_the_kids_played_in-a-90_1657433873985.jpg)
Fun in the sun: Kourtney chatted with a pal as the kids played in the sand
![Having a blast: North, Reign, Saint, Penelope and their pals appeared to be having a blast as they chased one another in the sand](https://i.dailymail.co.uk/1s/2022/07/10/07/60087883-10999141-Having_a_blast_North_Reign_Saint_Penelope_and_their_pals_appeare-a-91_1657433873986.jpg)
Having a blast: North, Reign, Saint, Penelope and their pals appeared to be having a blast as they chased one another in the sand
![Stunning: Despite being focused on taking care of their children, Kim and Kourtney didn't let that stop them from putting on stylish displays for the afternoon](https://i.dailymail.co.uk/1s/2022/07/10/12/60087907-10999141-Stunning_Despite_being_focused_on_taking_care_of_their_children_-a-32_1657451694934.jpg)
![Smirking: Kourtney was caught smirking as she watched the kids play](https://i.dailymail.co.uk/1s/2022/07/10/12/60087909-10999141-Smirking_Kourtney_was_caught_smirking_as_she_watched_the_kids_pl-a-29_1657451694893.jpg)
Stunning: Despite being focused on taking care of their children, Kim and Kourtney didn’t let that stop them from putting on stylish displays for the afternoon
Like her famous mother, North was also decked out in Balenciaga but switched up her designer labels by rocking a black Prada bucket hat.
Saint, Penelope and Reign were all seen frolicking on the beach with their family and friends.
Kim and Kourtney’s crew were later joined by another group of pal who brought coolers full of goodies to top off the idyllic summer day.
![Milling about: The group spent the day hanging around the beach without much on the agenda](https://i.dailymail.co.uk/1s/2022/07/10/07/60087915-10999141-Milling_about_The_group_spent_the_day_hanging_around_the_beach_w-a-94_1657433874092.jpg)
Milling about: The group spent the day hanging around the beach without much on the agenda
![Mom! Saint West occupied a bit of his famous mom's time as they briefly conversed away from the beach bash](https://i.dailymail.co.uk/1s/2022/07/10/07/60087897-10999141-Mom_Saint_West_occupied_a_bit_of_his_famous_mom_s_time_as_they_b-a-95_1657433874125.jpg)
Mom! Saint West occupied a bit of his famous mom’s time as they briefly conversed away from the beach bash
![Hot: With the sun out and summer in full swing, the day undoubtedly proved to be a hot one for the gang](https://i.dailymail.co.uk/1s/2022/07/10/21/60087881-10999141-Hot_With_the_sun_out_and_summer_in_full_swing_the_day_undoubtedl-a-82_1657486539834.jpg)
Hot: With the sun out and summer in full swing, the day undoubtedly proved to be a hot one for the gang
![Chatting: Kourtney seen chatting with another mom during the beach party](https://i.dailymail.co.uk/1s/2022/07/10/21/60087911-10999141-Chatting_Kourtney_seen_chatting_with_another_mom_during_the_beac-a-87_1657486540700.jpg)
Chatting: Kourtney seen chatting with another mom during the beach party
![Birthday? While it's unclear whose birthday it was on Saturday, the group was near the water for a birthday celebration](https://i.dailymail.co.uk/1s/2022/07/10/21/60087901-10999141-Birthday_While_it_s_unclear_whose_birthday_it_was_on_Saturday_th-a-86_1657486540613.jpg)
Birthday? While it’s unclear whose birthday it was on Saturday, the group was near the water for a birthday celebration
![Lively chat: It seemed to be a lively conversation with Kim, Kourtney and another friend](https://i.dailymail.co.uk/1s/2022/07/10/12/60087893-10999141-Lively_chat_It_seemed_to_be_a_lively_conversation_with_Kim_Kourt-a-31_1657451694929.jpg)
![Holding court: Kim seemed to gain everyone else's attention at one point](https://i.dailymail.co.uk/1s/2022/07/10/07/60087905-10999141-Holding_court_Kim_seemed_to_gain_everyone_else_s_attention_at_on-a-100_1657433874292.jpg)
Lively chat: It seemed to be a lively conversation with Kim, Kourtney and another friend
While Kim and Kourtney hit the beach with their brood, Kourtney’s eldest son Mason got in some quality time with his father, Scott Disick, at the celeb haunt Nobu in Malibu.
Scott, 39, rocked a plain white t-shirt, a backwards black hat and black shorts for his day out with Mason. He walked in bright blue sneakers.
12-year-old Mason kept it casual in a black hooded sweatshirt styled with a bright red cap and baggy denim jeans.
Kourtney and Scott dated for nearly a decade and welcomed three kids together before splitting in 2015.
![Edgy: During the party, Kourtney took to her Instagram Story to show off her outfit for the day, which included a pair of edgy black platform shoes](https://i.dailymail.co.uk/1s/2022/07/10/12/60089983-10999141-Edgy_During_the_party_Kourtney_took_to_her_Instagram_Story_to_sh-a-33_1657451695241.jpg)
Edgy: During the party, Kourtney took to her Instagram Story to show off her outfit for the day, which included a pair of edgy black platform shoes
![Adorable: She also shared a cute snap of Reign sitting on a lounge chair and soaking up the sun](https://i.dailymail.co.uk/1s/2022/07/10/07/60089981-10999141-Adorable_She_also_shared_a_cute_snap_of_Reign_sitting_on_a_loung-a-80_1657433873615.jpg)
Adorable: She also shared a cute snap of Reign sitting on a lounge chair and soaking up the sun
![View: Kourtney included an atmosphere shot that showed off the sandy beach and stunning skyline](https://i.dailymail.co.uk/1s/2022/07/10/12/60089985-10999141-View_Kourtney_included_an_atmosphere_shot_that_showed_off_the_sa-a-34_1657451695247.jpg)
View: Kourtney included an atmosphere shot that showed off the sandy beach and stunning skyline
Since then, the Talentless founder has been linked to a number of famous young women – including Lionel Richie’s daughter Sofia and Lisa Rinna’s youngest daughter Amelia Hamlin.
He recently split from British model Rebecca Donaldson, 27, and has since been spotted hanging out with several attractive young women in Los Angeles.
Kourtney has found love again in longtime pal Travis Barker. She recently wed the 46-year-old Blink-182 drummer at a courthouse in Santa Barbara.
A week later, the couple and their respective families jetted off to Italy for an extravagant goth-themed wedding.
![Bonding: While Kim and Kourtney hit the beach with their brood, Kourtney's eldest son Mason got in some quality time with his father, Scott Disick, at the celeb haunt Nobu in Malibu](https://i.dailymail.co.uk/1s/2022/07/10/21/60088191-10999141-Bonding_While_Kim_and_Kourtney_hit_the_beach_with_their_brood_Ko-a-83_1657486539878.jpg)
Bonding: While Kim and Kourtney hit the beach with their brood, Kourtney’s eldest son Mason got in some quality time with his father, Scott Disick, at the celeb haunt Nobu in Malibu
Kourtney’s sister Kim shocked fans in February 2021 when she filed for divorce from rapper Kanye West after nearly seven years of marriage.
The social media star is currently dating comedian Pete Davidson, 23, who she connected with during her Saturday Night Live hosting gig in October.
Though her and Pete have been nearly inseparable since going public with their unlikely romance, Kim has continued to be a doting mother to the four children she shares with Kanye.
![Fashionistas: Kim recently returned from France after taking on Paris Fashion Week with fashionista daughter North; the duo seen July 6](https://i.dailymail.co.uk/1s/2022/07/10/21/60089955-10999141-Fashionistas_Kim_recently_returned_from_France_after_taking_on_P-a-84_1657486539908.jpg)
Fashionistas: Kim recently returned from France after taking on Paris Fashion Week with fashionista daughter North; the duo seen July 6
She recently returned from France after taking on Paris Fashion Week with fashionista daughter North.
She accompanied her mother to several fashion shows and even supported Kim as she made her way down the catwalk for Balenciaga.
Before taking Paris by storm, Kim vacationed in Turks And Caicos with her younger siblings Khloe, 38, and Rob, 35, and their children.
![Model moment: She accompanied her mother to several fashion shows and even supported Kim as she made her way down the catwalk for Balenciaga](https://i.dailymail.co.uk/1s/2022/07/10/21/60089957-10999141-Model_moment_She_accompanied_her_mother_to_several_fashion_shows-a-85_1657486539947.jpg)
Model moment: She accompanied her mother to several fashion shows and even supported Kim as she made her way down the catwalk for Balenciaga
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