Lauren Fenmore was the only child of wealthy Genoa City retailer Neil Fenmore and Joanna Manning who divorced when Lauren was a small child. She was raised by her father, so they were very close. Joanna didn't come back into her life until Lauren was out of high school. Lauren's father Neil passed away, naming her head of Fenmore Department stores while only in her twenties.
After Lauren's divorce from Paul Williams, she later married Dr. Scott Grainger, a physician at Genoa City Memorial Hospital. Nurse Sheila Carter arrived to work and immediately fell for Dr. Scott. In order to steal him away from Lauren, Sheila drugged Scott and slept with him, ending up pregnant. At the same time Lauren also became pregnant by Scott but didn't tell him. When the truth about the father of Sheila's baby came out, Scott felt obligated, divorced Lauren and married Sheila. Both Sheila and Lauren were due around the same time. Sheila miscarried her baby earlier but kept it a secret. She contacted a black market baby broker and bought a baby boy. She then switched the brokered baby for Lauren's baby in the hospital nursery, passing off Lauren's baby as her own naming him Scotty Jr. Lauren named her baby Dylan, but he died of meningitis before he was a year old.
Sheila's mother Molly discovered her secret and tried to tell all but suffered a stroke making her unable to talk. Sheila had her hospitalized to keep her away from Lauren and Scott. Eventually Molly told Lauren all. Sheila tried to kill Lauren at their cabin but accidentally set fire to it instead. Lauren and Molly escaped but a body was found, leaving all to assume that it was Sheila who perished. Unbeknownst to all in Genoa City, Sheila escaped the fire (a meter reader was the one who died). Sheila fled to Los Angeles where she took a job as company nurse at reputable design house Forrester Creations. Scott and Lauren with their baby Scotty were reconciled. But not long afterward, Scott developed a mysterious disease and died.
Lauren later moved to Los Angeles and now appeared on Bold and Beautiful where Scotty was never seen. Lauren left Los Angeles maintaining CEO status of Fenmore's and traveled the world. She dropped in to help friends like Katherine Chancellor of Genoa City and the Forresters of Los Angeles from time to time. Toward the end of her stay in LA, her son, Scotty Grainger, was finally referred to as being in boarding school.
In late 2001 Lauren showed up once again in Genoa City and in addition to running Fenmore's, went into partnership with the Abbotts as co-owner of the Jabot Boutique, adding her own fashion line to their cosmetics.
Lauren and Michael Baldwin became involved, and Michael eventually popped the question after dinner in the Private Dining Room at The Genoa City Athletic Club which he had setup like a gambling casino. After some hesitance by Lauren over Michael's lack of communication about his personal life, Lauren did say yes. Lauren returned from a buying trip to LA, not wearing her engagement ring. Michael suspected that Lauren was hiding something herself. Gloria is thrilled with the impending marriage, and has taken over the wedding planning. Michael quizzed Lauren about her rarely-mentioned son Scotty, hopeful that he would attend the wedding, and they could finally meet, but Lauren was evasive. After an Internet search turned up nothing but a last name for Scotty, Kevin asked to borrow Lauren's cell phone, and they traced him by his phone number to Toronto. Michael went there and met Scotty, now 24, and a college student/Teaching Assistant, working on his Masters in Education with a specialty in creative writing. Scotty disclosed that he's never been back to Genoa City since he was a toddler, and has grown up in boarding schools around the world. But wherever he was, Lauren visited often and kept an apartment nearby. Scotty has always wondered why his mother was so secretive, but gave up asking about it back when he was a kid. Not long after Michael returned to Genoa City, Lauren decided it was time to tell Scotty about her impending marriage, but Scotty admitted he'd already met Michael. Lauren felt betrayed, but Michael later reminded her about how she disliked HIS family secrets. After Lauren left Scotty's, who should walk out of Scotty's bedroom, but Sheila Carter! Sheila is taking college courses and being tutored by Scotty, who is the spitting image of his father. Sheila has given Scotty an idea for a novel. Unknown to him, the story is of Sheila and his mother Lauren, but Sheila has made Lauren out to be the evil-doer who stole Sheila's baby. Meanwhile, Michael discovered their history, and visited another "Sheila" in a California prison for the criminally insane. This turned out to be "Sugar" who after drugging and plastic surgery looked like Sheila and turned herself in after a two month's escape. Scotty came to Genoa City for his mother's wedding and Sheila followed him there in disguise. And who should Sheila hook up with, but Terrible Tom Fisher!
Not realizing that Sheila was intent on murder, Tom was conned into joining her plot to get back at Lauren, by planting a bomb on Lauren and Michael's honeymoon yacht. Michael watched in horror from shore as the yacht blew up. Lauren was not found, and was presumed dead. But Tom had rescued Lauren and carried her and Sheila back to a farmhouse in Genoa City where he held them in the basement fallout shelter. Lauren convinced Tom that Sheila was the bad guy, so he contacted Gloria to arrange a deal to turn over Lauren. John overheard the phone call, grabbed his gun, and met Tom in an alley instead. During a struggle the gun went off, and Tom was killed. John dropped the gun and took off getting into a car accident, but Ashley arrived in time to witness it. Ashley confessed to the shooting and was arrested with Michael as her lawyer. Meanwhile Lauren and Sheila fought and Lauren broke Sheila's ankle. Eventually, realizing Tom was not coming back, they joined forces attempting to escape. As they were almost out, Paul arrived and pulled Lauren to safety while the shelter caved in on Sheila. Sheila was not found in the rubble, but was later seen at a plastic surgeon wanting a new face. Michael and Lauren enjoyed a tearful reunion, and everyone in Genoa City was relived she was back among the living. After recovering from the accident, John regained his memory, and confessed to killing Tom. Not long afterward, Scotty left Genoa City to return to Toronto.
In October 2010, Lauren spent some time visiting Scotty in Toronto. She returned reporting that she was excited about Scotty’s new girlfriend.