Gene Simmons' daughter slams Katey Sagal for revealing affair: 'She should probably look at her own family before pointing fingers'

Katey Sagal might be rethinking a few pages of her memoir.

In her new book, the "Married With Children" actress reveals intimate details of a past affair with KISS frontman Gene Simmons. More than 40 years ago, the two engaged in a years-long relationship, even though both were supposedly committed to other people. And Sophie Simmons, Gene's 24-year-old daughter, is not impressed by the revelations.

"She should probably look at her own family -- I'm just saying -- before pointing fingers," Sophie said on Allegedly with Theo Von & Matthew Cole Weiss."I mean, if Katey wants to write a book about her life, cool — but to write about someone and then have it affect their family I feel like is a really kind of low place to go to try and sell a book."

The backstory: Katey and Gene met at a bar back in the 1970s. "I took him home with me that night," Sagal writes in new book "Grace Notes." The affair was on-and-off for years, until Sagal said if he didn't propose, she would marry her then-boyfriend. Gene laughed at the idea, and the two went their separate ways.

For his part, Gene has been with now-wife Shannon Tweed for four decades. In addition to Sophie, they have a son, Nick, 28.

"It really doesn't affect us — we're so tight as a family," Sophie said. "My parents are so crazy in love. I mean, congrats to the one groupie who thought they got ahead, but apparently didn't. ... You're a really talented actress, so it worked out."

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HOLLYWOOD, CA - JUNE 14: TV personality Sophie Simmons arrives at the premiere of Amazon's 'The Neon Demon' at ArcLight Cinemas Cinerama Dome on June 14, 2016 in Hollywood, California. (Photo by Jeffrey Mayer/Getty Images)
HOLLYWOOD, CA - JUNE 14: TV personality Sophie Simmons arrives at the premiere of Amazon's 'The Neon Demon' at ArcLight Cinemas Cinerama Dome on June 14, 2016 in Hollywood, California. (Photo by Jeffrey Mayer/Getty Images)
HOLLYWOOD, CA - JUNE 14: TV personality Sophie Simmons arrives at the premiere of Amazon's 'The Neon Demon' at ArcLight Cinemas Cinerama Dome on June 14, 2016 in Hollywood, California. (Photo by Jeffrey Mayer/Getty Images)
LOS ANGELES, CA - JUNE 04: Musician Gene Simmons (R) and actress Sophie Tweed-Simmons arrive at Tower Cancer Research Foundation's 3rd annual Ante Up For a Cancer Free Generation Poker Tournament and Casino Night at Sofitel Hotel on June 4, 2016 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images)
Sophie Simmons attends the Neon Demon Premiere, in Hollywood, California, on June 14, 2016. / AFP / VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)
LOS ANGELES, CA - JUNE 04: Gene Simmons and Sophie Simmons attend the Tower Cancer Research Foundation's 3rd Annual Ante Up For A Cancer Free Generation Poker Tournament And Casino Night at Sofitel Hotel on June 4, 2016 in Los Angeles, California. (Photo by Harmony Gerber/FilmMagic)
LOS ANGELES, CA - MAY 07: Reality TV Personaliu Sophie Simmons attends Lupus LA's Orange Ball: A Night Of Superheroes at Fox Studios on May 7, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
BEVERLY HILLS, CA - MAY 03: Actress Sophie Simmons arrives at the Premiere Of EPIX's 'Under The Gun' at the Samuel Goldwyn Theater on May 3, 2016 in Beverly Hills, California. (Photo by Greg Doherty/Getty Images)
LOS ANGELES, CA - APRIL 17: Reality TV Personality Sophie Simmons attends the 13th Annual Stuart House Benefit presented by John Varvatos at John Varvatos on April 17, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - APRIL 17: Reality TV Personality Sophie Simmons attends the 13th Annual Stuart House Benefit presented by John Varvatos at John Varvatos on April 17, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
WEST HOLLYWOOD, CA - FEBRUARY 28: Sophie Simmons arrives at the 24th Annual Elton John AIDS Foundation's Oscar viewing party held at West Hollywood Park on February 28, 2016 in West Hollywood, California. (Photo by Michael Tran/FilmMagic)
NEW YORK, NY - APRIL 14: Sophie Simmons attends The Cinema Society And Hugo Boss Host The Premiere Of IFC Films' 'Sky' at Metrograph on April 14, 2016 in New York City. (Photo by Esther Horvath/FilmMagic)
WEST HOLLYWOOD, CA - FEBRUARY 28: Sophie Simmons arrives at the 24th Annual Elton John AIDS Foundation's Oscar viewing party held at West Hollywood Park on February 28, 2016 in West Hollywood, California. (Photo by Michael Tran/FilmMagic)
LOS ANGELES, CA - FEBRUARY 25: Reality TV Personality Sophie Simmons attends the 3rd annual 'An Evening With Canada's Stars' at Four Seasons Hotel Los Angeles at Beverly Hills on February 25, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - DECEMBER 01: Actress Sophie Tweed-Simmons arrives at the Inaugural World AIDS Day Benefit at Sofitel Hotel on December 1, 2015 in Los Angeles, California. (Photo by Matt Winkelmeyer/Getty Images)
BEVERLY HILLS, CA - NOVEMBER 07: TV personality Sophie Simmons attends the Children Matter.NGO first annual gala on November 7, 2015 in Beverly Hills, California. (Photo by Tommaso Boddi/Getty Images for The Children Matter.NGO)
NEW YORK, NY - NOVEMBER 11: Actress Sophie Simmons attends Sierra Club's Act In Paris, A Night Of Comedy And Climate Action at the Heath at the McKittrick Hotel on November 11, 2015 in New York City. (Photo by Nicholas Hunt/Getty Images)
LOS ANGELES, CA - OCTOBER 16: Sophie Simmons attends the Peace Over Violence 44th annual Humanitarian Awards held at the Dorothy Chandler Pavilion on October 16, 2015 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
BEVERLY HILLS, CA - NOVEMBER 07: Actress Sophie Simmons attends the First Annual Gala for The Children Matter.NGO on November 7, 2015 in Beverly Hills, California. (Photo by Michael Tullberg/Getty Images)
NEW YORK, NY - SEPTEMBER 17: Actress Sophie Simmons attends the Samsung Hope for Children Gala 2015 at Hammerstein Ballroom on September 17, 2015 in New York City. (Photo by Bryan Bedder/Getty Images for Samsung)
WESTWOOD, CA - OCTOBER 04: Sophie Simmons arrives at the world premiere of 'Goosebumps' held at Regency Village Theatre on October 4, 2015 in Westwood, California. (Photo by Michael Tran/FilmMagic)
NEW YORK, NY - SEPTEMBER 16: Singer Sophie Tweed-Simmons attends DuJour Magazine's Jason Binn & Nicole Vecchiarelli Celebrate Jason Derulo Presented by Elite Daily, InList, Invicta & Trent Fraser at Avenue on September 16, 2015 in New York City. (Photo by Mark Sagliocco/Getty Images for DuJour)
WEST HOLLYWOOD, CA - AUGUST 30: Sophie Simmons attends Republic Records 2015 VMA after party at Ysabel on August 30, 2015 in West Hollywood, California. (Photo by Rachel Murray/Getty Images for Republic Records)
NEW YORK, NY - SEPTEMBER 15: Sophie Simmons attends UNITA's First Annual Gala Against Human Trafficking at Capitale on September 15, 2015 in New York City. (Photo by Steve Mack/FilmMagic)
HOLLYWOOD, CA - AUGUST 16: Sophie Simmons attends the 'Music On A Mission' benefit concert presented by Mending Kids at Lucky Strike Live on August 16, 2015 in Hollywood, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - JULY 18: Sophie Simmons attends the Just Jared's Summer Bash Pool Party 2015 on July 18, 2015 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
COMMERCE, CA - JULY 17: Sophie Simmons attends the Inaugural Wounded Warrior Amputee softball team charity gala at The Commerce Hotel and Casino on July 17, 2015 in Commerce, California. (Photo by Maury Phillips/WireImage)
HOLLYWOOD, CA - JUNE 04: Sophie Simmons arrives at the Los Angeles premiere of 'Insidious: Chapter 3' held at TCL Chinese Theatre IMAX on June 4, 2015 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
WEST HOLLYWOOD, CA - MAY 21: Actress Sophie Simmons attends OK! Magazine's So Sexy Event at SkyBar at the Mondrian Los Angeles on May 21, 2015 in West Hollywood, California. (Photo by Michael Tullberg/Getty Images)
HOLLYWOOD, CA - APRIL 29: Sophie Simmons arrives at the 32nd Annual ASCAP Pop Music Awards held at Lowes Hollywood Hotel on April 29, 2015 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
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