US4 min(s) read
Published 10:29 21 Jun 2026 GMT
Killer dad Chris Watts's 'second mistress' steps forward to share sexual encounter including his alleged 'rape fantasy'
A woman who claims she had a secret sexual encounter with convicted family killer Chris Watts has come forward with allegations about a disturbing meeting months before he murdered his pregnant wife and two young daughters.
Per The Daily Mail, the claims are detailed in investigative documents and add another layer to one of America's most notorious murder cases. Watts is currently serving multiple life sentences after admitting to killing his wife, Shanann Watts, and daughters Bella and Celeste in August 2018.
The newly highlighted records also shed light on Shanann's final efforts to save her marriage, as well as previously reported evidence surrounding Watts's affair with co-worker Nichol Kessinger, which became a central focus of the investigation.
Woman claims Tinder meeting turned disturbing
According to police records, a Colorado woman named Amanda McMahon told investigators she met Watts through Tinder in February or March 2018, roughly six months before the murders.
McMahon said the pair arranged to meet in a Chick-fil-A parking lot before driving separately to her home. She told detectives that Watts claimed he was separated from his "babies' momma" and said he was not allowed to see his children.
The encounter soon became unsettling, according to her account. McMahon alleged that Watts pulled her hair and wrapped his arms around her neck during sex. She described the experience as a "rape fantasy" and said she pushed him away at one point.
Despite being disturbed by what happened, she told investigators: "No radars went off or anything."
McMahon said she was "99 percent certain" the man was Watts and was able to describe his tattoos and workplace. However, she acknowledged she could not identify him with enough certainty to testify in court.
Watts denied ever meeting McMahon and maintained that his only extramarital affair was with Kessinger.
Investigators uncovered hidden messages and explicit material
The files also reveal how investigators discovered a calculator-style app on Watts's phone that concealed photographs, videos and other private material linked to his relationship with Kessinger.
Police found evidence showing the pair exchanged intimate photographs and spent significant time together while Shanann and the children were visiting family in North Carolina during the summer of 2018.
Investigators also reviewed Kessinger's internet search history, which included searches such as "Man I'm having affair with says he will leave his wife" and "marrying your mistress."
According to the records, Kessinger also searched for Shanann Watts's name on September 1, 2017, months before she later said her relationship with Watts began. The documents do not explain why the search was conducted.
After Shanann and her daughters were reported missing, Kessinger searched terms including "Can cops trace text messages" and "How long do phone companies keep text messages." Investigators noted that some of those searches had later been deleted.
Kessinger was never accused of any wrongdoing in the case.
Shanann's final attempts to save her marriage
The documents also contain details about Shanann Watts's efforts to repair her marriage during the weeks leading up to her death.
Among the items recovered by investigators was an unopened copy of the relationship book Hold Me Tight, which Shanann had purchased for her husband. Police found it still sealed inside its Amazon box in the family garage after the murders.
Text messages reviewed during the investigation showed Shanann expressing concern about changes in her husband's behavior.
"How many times do I have to ask you to hold me? You hate me that much?" she wrote.
Watts responded: "I don't hate you. I will fix this. It will be better."
Shanann reportedly explored marriage counseling, sought support from friends and organized a planned getaway to Aspen in an effort to reconnect with her husband.
On August 13, 2018, Watts murdered Shanann, who was pregnant with their son Nico, before killing daughters Bella, four, and Celeste, three. He later disposed of their bodies at a remote oil site in Colorado.
After initially denying involvement and appearing in media interviews pleading for his family's return, Watts eventually confessed. In November 2018, he pleaded guilty to multiple murder charges, including the unlawful termination of Shanann's pregnancy and tampering with deceased bodies.
He is serving five life sentences, three of them consecutively.













