Kathy Hilton Instagram: Kim Richards Is Out Of Rehab, Attends Brooke Brinson's Bridal Shower [VIDEO]

Kim Richards left rehab on Thursday to attend Brooke Brinson's bridal shower at the home of her sister, Kathy Hilton.

Kim Richards' Ex-Husband Shared A Pic Of The 'RHOBH' Star In Rehab

Although the Real Housewives of Beverly Hills star is currently in treatment, likely in a sober living facility, rather than rehab, she was in attendance at her daughter's party, and posed for a photo with her sister during the event.

A photo posted by Kathy Hilton (@kathyhilton) on May 14, 2015 at 4:48pm PDT

Kim Richards' Daughter Calls Her The 'Best Mom'

"With my beautiful sister and niece @kimrichards11 @brookewiederhorn so happy for you and Thayer ! Wish you both a long life together xoxo Aunt K," Hilton captioned the photo.

After the affair, Brinson took to Instagram, as well, thanking her aunt for throwing her the over-the-top shower.

"Thank you @kathyhilton for throwing me the most beautiful bridal shower and all the girls that came!" she wrote. "I love you all! Such a great day with family & friends."

Although Brinson and Weiderhorn already tied the knot, walking down the aisle at Hilton's home in Aug. 2014, they will celebrate their marriage with a second wedding in Mexico later this month.

In other Kim Richards news, Us Weekly has reported that charges were officially filed against the Bravo star earlier this week, revealing she was not only drunk, but also under the influence of "a drug, a controlled substance, and toluene,” an inhalant.

Kim Richards will address her charges in court on June 11.