A loyal girlfriend is in for a nasty shock when she discovers her own mum has tried it on with her the father of her daughter and boyfriend of seven years.
Sherri started to suspect something was up when one of her friends sent her a message on Facebook saying she'd spotted Sherri's boyfriend Brandon and Sherri's mum Julie out "dirty dancing" in a nightclub together.
"I saw your mum and Brandon at the club. He was dancing all over her," the message read.
Appearing on the latest episode of daytime chat show Maury , Sherri explains that she was at home with her kid and her mum's kids when she received the message from her pal.
"They live with me and I am the only one who works. If he goes outside to smoke a cigarette she goes out with him. And in the middle of the night too."
She also says he once joked that he'd slept with Julie but then "took it back".
But there's more, Sherri was also sent a photo from a friend of Brandon and Julie at a petrol station together, sparking even more worry.
"She happened to pull up to a gas station and see them. Brandon says it’s nothing, but they hang out all the time. They are too friendly."
And Sherri reckons that if he's sleeping with her mum, he's sleeping with other females too.
"If you’re going to sleep with my mother you’re definitely going to sleep with other people," Sherri says.
But Brandon - who starts yelling at his girlfriend as soon as he comes out - is adamant he's never cheated and says he's only ever been with Sherri.
"Brandon - do you think your relationship (with Julie) is closer than it should be?" Maury asks him.
"No," he replies matter of factly. "I look at her like my mother."
Getting a few laughs, Maury quips, "I’ve never had my mother grind up on me!"
Julie then comes out to massive boos from the audience and starts telling Sherri she's "disgusting" and even calls her a "b**ch" for making the accusations.
"Why would you call your own daughter disgusting? Why are you calling your own daughter a b**ch? Why?" a confused Maury asks.
"I raised her myself. I would never sleep with him."
Maury asks her if she thinks Brandon has cheated on her daughter in the past.
"No," she says before telling him their relationship has always been toxic.
But the lie detector tests say otherwise.
Both Brandon and Julie have taken tests to determine if they have slept together behind Sherri's back.
"Did you sleep with Sherri while she was at work?" Brandon was asked.
"You said no - the lie detector determined you are telling the truth."
Maury then asks if Brandon slept with Sherri the night they went to the club together and the lie detector said he was telling the truth when he said no.
He's also asked if he's had sexual contact with any other women, to which he replies that he hasn't.
However, things start to unravel when Maury reads out the next result.
Brandon was asked if Julie had ever made a sexual advance towards him and he refused to answer the question.
As Sherri explodes in anger, Maury then moves on to Julie's test.
"Did you ever make a sexual advance towards Brandon? You said no and the lie detector determined that was a lie."
Sherri obviously isn't happy and storms off stage.
We reckon Julie might have to move out now...