(just four days after announcing split from Kris Humphries)
Although she loves her younger sister dearly, Kim Kardashian was not in the most festive of moods at Kendall Jenner's Sweet 16 birthday bash last month.
Kardashian family matriarch Kris Jenner threw her model daughter a lavish party in Los Angeles just four days after Kim filed for divorce from husband Kris Humphries.
Although the 31-year-old reality star gamely tried to get into the festivities, she wore sadness on her face like a stamp.
Scroll down for video...
Not a happy camper: Kim Kardashian attended sister Kendall's Sweet 16 party just four days after announcing her split from Kris Humphries
She attempted to smile in the shots she was actually featured in, but the grin didn't reach her eyes.
Physically, the middle Kardashian sister looked flawless as usual.
Sisterly support: Kim was flanked by Khloe and Kourtney in her time of need
Birthday girl: 16-year-old Kendall, at least, seemed to have a blast at the fete
No longer fighting: Though they sparred before the shindig, Kendall and mother Kris have clearly made up
A genuine smile: Kim needs Khloe around to make her laugh
Her unhappiness was also blatant, given the revelry going on around her at the Andaz West Hollywood hotel.
Another family pic: This time Kendall poses with her brother-in-law, Lamar
Some of Khloe's favourite people: Her husband poses with some of her sisters; Kim is absent
Is Kris photobombing? It looks like the Kardashian matriarch hopped into the picture at the last second
The birthday girl is in the house! Kendall gets on the mic to thank everyone for attending her party
Father Bruce Jenner, brother Rob and sister Kylie, 14, were also on hand to enjoy the celebration at a West Hollywood hotel.
Although Kim's drama occurred behind-the-scenes, Kendall's drama was present for all and sundry to see in an episode of Keeping Up With the Kardashians which aired this week.
I passed! Kendall proudly displays her car keys
Bad driver: Despite failing her driving test, Kendall was behind the wheel after her party
Where's Kim? Once again, Kim is absent from another family photo
Pretty in pink? Khloe poses with something that looks vaguely mime-like
She refused to let her mother plan a superfluous party in the Bahamas and opted to stay at home in Los Angeles instead.
Party people: The birthday girl poses with Kourtney's boyfriend, Scott Disick
Blast off! Kylie gets a lift from dad Bruce Jenner at the hotel party
Threesome: Khloe poses with brother Rob and her husband, Lamar Odom
A boogying bunch: Kourtney bustrs a move all by herself
Jazz hands: This time it's Khloe who's dancing on her own
One person who may have regretted this decision was Kim, who, after her split from her husband of just 72 days, was clearly in need of a vacation.
Hot in Dallas: Khloe was in the Texas city to watch her husband play basketball
Number one fan: Khloe cheered on her husband today in Dallas
Pregnant and shopping: Kourtney stepped out today in Beverly Hills to finish up some holiday shopping