For Kim and Kourtney Kardashian there was a chance to let their hair down this weekend – before a family Father's Day celebration on Sunday.
The glamorous pair – stepping out minus married sister Khloe – put in a typically high-octane appearance at a Las Vegas nightclub, where they were hosting a star-studded magazine party.
The following day, they headed to a Hollywood steakhouse to celebrate Father's Day with their stepdad Bruce Jenner.
The sisters' own dad passed away in 2003 aged 59, and Khloe revealed on her Twitter page that she feels "blessed" to have a stepdad, too.
"Father's day is always a bittersweet holiday for me because I of course miss my dad," she wrote.
"But it also reminds me of how truly blessed I am to have had two incredible fathers."