Sweet 15! Kourtney and newest member of the Kardashian clan Penelope help Kylie Jenner celebrate her birthday

When you’re a Kardashian, a birthday is a fantastic excuse for a lavish party.
So as Kylie Jenner turned 15 today her famous family were out in force to help her celebrate.
Kylie enjoyed a meal at fancy Nobu restaurant in Malibu where she was joined by members of the Kardashian clan.

Party time: Kourtney Kardashian (L) helped sister Kylie Jenner celebrate her 15th birthday tonight

New mother Kourtney was on hand, along with her partner Scott Disick and their two children – Mason and baby Penelope.
The 33-year-old, who gave birth to her second child one month ago, looked relaxed as she held Mason’s hand while they walked into the restaurant.
The reality star looked in great shape following the birth as she sported a spotty black and blue blouse with form-fitting black trousers.

New addition: Kourtney's partner Scott Disick carried their baby Penelope in a convertible car seat

Relaxed: The new mother looked in great spirits as she held Mason's hand while they walked into the restaurant

Birthday girl: Kylie was laden with gifts as she left Nobu in Malibu following the meal

She also wore ballet pumps and used the hand that wasn’t clutching Mason to carry a load of gifts into the eatery.
Scott meanwhile was charged with toting little Penelope, who was in a convertible car seat and covered up by a cosy blanket.
Kylie looked lovely and as usual older than her tender years in a pretty white satin blouse and short red skirt.

Happy family: The delighted foursome looked excited to be helping Kylie celebrate her special day

Heading home: Mason let Kourtney led the way as they made their way to the car following Kylie's dinner

Sister act: Kylie's sister Kendall arrived at the restaurant with a bunch of their mutual friends

Daddy day care: Scott carefully lifted Penelope, who was snuggled under a blanket, into the car

She was seen leaving the restaurant after the delicious meal while armed with several presents.
The teen posted a photo to her Twitter and Instagram pages of her ornately decorated floral cake, before sharing a snap of the sky high pumps she was bought by sister Khloe for her birthday.
Kendall Jenner was also on hand to help Kylie celebrate and showed up to Nobu with a bunch of the girls’ mutual friends.
As well as Kylie’s birthday she and Kendall had the added excitement of appearing in Fashion Police tonight.

Presents: It looked like Kourtney was set to shower her younger sister with gifts

Close bond: Scott carried Mason while Kourtney chatted to the boys as they stood outside the venue

Tasty treat: Kylie shared a photo of her elaborately decorated cake on her Twitter and Instagram pages