Kyle Richards, the Real Housewife of Beverly Hills, has revealed her biggest regret in 15 seasons of Bravo's Real Housewives of Beverly Hill, due to her sister Kim Richards. Richards, who is the last OG standing among the current cast, revealed that she gets teary watching a scene in which she and Kim Richards clashed during season one where she revealed that Kim was an alcoholic, which she later confirmed. Despite this, Kyle has since learned to handle her sister's issues differently and to confront people constructively. She joins Porsha Williams, Vicki Gunvalson, Teresa Giudice, Lisa Barlow and Luann de Lesseps for Ultimate Girls Trip season five, timed with the show's 20th anniversary. Other notable moments included Dr. Jen's drunkenness, a flop first season, and the dismissal of Jennie for "offensive" and racially insensitive old Facebook posts.