The sisters spent a few days in San Francisco before returning to Los Angeles on Saturday.
Kourtney, Kim and Khloe Kardashian take San Francisco!
The three sisters rocked their sexiest ensembles for a night out in the City by the Bay on Friday night.
Kim accessorized an oversized coat with thigh-high stockings, while Kourtney showed off her cleavage in a v-neck mini dress. Khloe, who is expecting her first child with boyfriend Tristan Thompson, showed little signs of a baby bump in a long black coat and thigh-high boots.
The famous siblings' trip up north didn't last long; they returned to Los Angeles on Saturday, where Kim participated in the Somos Una Voz telethon. The 36-year-old reality star, who is expecting her third child with husband Kanye West via surrogate, Snapchatted from the event, encouraging her fans to make donations to disaster relief.
Kourtney, meanwhile, spent some quality time with her boyfriend, Younes Bendjima, as the two enjoyed a date night at Taverna Tony in Malibu.
According to an eyewitness, the pair, who didn't show any PDA, looked "very chill" and looked like "a normal couple stepping out for some food."
Kourtney and Bendjima only spent around an hour at the restaurant, but left room to share a dessert before Bendjima picked up the bill. Though ET's eyewitness says the reality star "seemed kind of quiet," she was overheard talking about her sister, Khloe.
See more on the family in the video below.