Spencer Pratt and his sister, Stephanie Pratt, may share a last name, but like most siblings, they don't always see eye to eye. From navigating reality TV fame on MTV's The Hills to public feuds and reconciliations, their relationship has gone through many ups and downs through the years. Although they are brother and sister, they have often seen the world through a very different lens as highlighted by Stephanie's recent commentary against his bid to become the mayor of Los Angeles. Stephanie didn't mince words in a series of posts she shared via X on February 14, 2026, suggesting that Spencer was only running because he was "trying to stay famous and sell his memoir." Spencer's memoir, The Guy You Loved To Hate: Confessions From A Reality TV Villain, hit shelves in January 2026. (She has since removed the posts from her page and changed her settings to a private account.) Spencer Pratt and Stephanie Pratt's Drama Was Put on Display on 'The Hills' Stephanie Pratt and Spencer Pratt were often at odds while filming the original MTV reality show, which aired from May 2006 to July 2010, giving viewers a glance at their tumultuous dynamic. (Spencer joined in season 2 and exited during season 6. Stephanie, for her part, first made an appearance in the third season as a supporting member of the cast before becoming a regular fixture by the final season). One infamous scene from season 6, during episode 2, titled "Ghost from the Past," showed Stephanie approaching her older brother and his wife, Heidi Montag. When she walked up to greet him and got a cold response, she teared up. Spencer was instantly frustrated and told her that she was constantly starting drama. Spencer Pratt and Heidi Montag. (Photo by Vivien Killilea/Getty Images) "That's why you're not in my life, you crazy bitch, because you come to barbecues and just start crying," he yelled. "I was just enjoying myself with my wife and I get crying sisters in front of me." Spencer recently confirmed that the fight was "real" and not scripted during his interview on the "We Need to Talk" podcast, which took place on January 27, 2026. He explained that his outburst had a lot to do with things happening within their family behind the scenes, including with their mother. "There's so much that leads to that moment," Spencer explained to podcast host Paul Carrick Brunson. "That's the problem with being siblings. When somebody does something to your parents and then they forgive and I don't." "Now, being a parent, I understand ... that's your kid," he added. "In a perfect world, my sister wouldn't have been on the show," Spencer said, revealing he wished things could have been different. "I didn't want her on the show," he added. Spencer noted that he ultimately didn't have a choice as "it wasn't my show." Stephanie Pratt Detailed Her Younger Years With Spencer Pratt in Her 2015 Memoir Stephanie Pratt reflected on growing up alongside Spencer Pratt in Malibu and Pacific Palisades, noting it was the "ultimate relaxing beach childhood" in her 2015 memoir, Made in Reality. "Not much has changed with my brother since we were kids," Stephanie, who now spends most of her time in London, wrote, describing Spencer as a "charismatic child." 23 Most Memorable Moments From 'The Hills' "There was never a dull moment ... He always had tons of friends and there was a lot of laughter around him. He really knew from day one how to love life," the MTV alum fondly recalled, revealing she looked up to him. "I always just thought he was so cool, so much fun," Stephanie wrote in one excerpt from her book. "Even if he was playing pranks on me...
It was nonstop shenanigans, nonstop winding my parents up and it was always the best fun to be on his side watching the mayhem take place." She said that as they got older, Spencer seemed to have it all figured out while she struggled with her mental health and dabbled with drugs. "He didn't have to get a sensible job because he hadn't messed up by being imperfect like me. It seemed so unfair. Why should I be punished for being depressed, and he rewarded for being a happier person anyway?" Stephanie wrote, noting that she was making an effort to carve out her own path in life. Stephanie Pratt Was Team Speidi Before Calling Them 'The Most Toxic People I've Ever Met' Spencer Pratt and his wife, Heidi Montag, had their fair share of haters over the years, but Stephanie was outspoken about her support of the couple leading up to their wedding. She offered to officiate their nuptials after the pair eloped in Cabo San Lucas, Mexico, in November 2008. Months later, the couple held a romantic ceremony for friends and family in Pasadena, California, in April 2009. "I adored Heidi from the minute I met her," Stephanie wrote in her memoir. "She is the sweetest person I have ever met." (Photo by Michael Loccisano/Getty Images) She also said that it was clear that Spencer was an acquired taste for some people, adding, "Sometimes he deserves it, and sometimes he j