A horse riding instructor and woman rider are facing jail for targeting an underage teenage girl for threesome sex.
Equestrian boss Guy Simmonds, 37, and fellow rider Lauren Jarvis, 26, plotted the sex session despite knowing the schoolgirl was under 16 – and the pair then agreed a ‘pact of silence’ after horse riding lessons.
A court heard the pair had ‘no doubt at all’ that the schoolgirl was under 16 before the threesome and vowed to keep it secret. They have now been found guilty of sexual activity with a child..
Prosecutor James Hartson said: ‘At all times he knew how old she was and so did Jarvis. The victim told him herself in one of the very first messages she sent him.
‘They didn’t care about her age when they were planning and engaging in a so-called threesome with the victim.
‘They also knew what they did was wrong and they agreed a pact of silence when they got wind she had started to talk about it.’
Cardiff Crown Court heard Simmonds bragged he was a ‘top showjumper’ after targeting the underage girl on Facebook.
Mr Hartson said there was a ‘clear element of grooming behaviour’ from Simmonds before the threesome in Jarvis’ home in January last year.

Equestrian boss Guy Simmonds, 37, (pictured) and fellow rider Lauren Jarvis, 26, plotted to have a threesome with a schoolgirl under 16

Cardiff Crown Court heard Jarvis (pictured) agreed that it was ‘absolutely fine’ with her
In one message read to court, the girl asked Simmonds what he would make her do and he replied: ‘You will both do what daddy says. It will be fun.’
Simmonds later messaged Jarvis saying: ‘Hey, I have a feeling that she has said about us.
‘If anyone asks for sake of both of us nothing ever happened that night xx.’
Jarvis replied: ‘Hey, who’s she told?
‘Oh god has she really, what’s she trying to do, make our lives hell? Of course I will xx.’
The court heard Simmonds told police in interview he did not have any from of sexual contact with the victim.
But he made calls to his mother from prison instructing her to pay the victim’s ‘fickle’ family £50,000 to drop the charges.
He said: ‘There is £20,000 in my account. Just f***ing give it to them.

Horse-riding instructor Guy Simmonds, 37, offered free lessons to Lauren Jarvis, 26, in exchange for sex before the pair engaged in a threesome with an underage girl, a court heard

Lauren Jarvis said Simmonds ‘pestered’ her for sex until she finally ‘gave in’ in October 2023

Jarvis answered no comment to the majority of police questions but denied sexual contact with the girl. Pictured: Jarvis outside court

Jarvis told the court that Simmonds turned up at her home in Newport, Gwent and asked her and an underage teenager to engage in a threesome in January 2024
‘I don’t care. £20,000 now and then £10,000 a year for three years.’
Simmonds claimed he had been given permission to ‘stray’ from his partner Rebecca Dimes, 34, on the condition she ‘did not want to know anything about it.’
Jarvis claimed any messages about a threesome were ‘banter and a wind up’.
Simmonds, of Undy in Gwent, and Jarvis, from Newport, were both found guilty by a jury of sexual activity with a child.
Simmonds was found not guilty on five other charges of sexual activity with a child relating to the same victim.
Judge Lucy Crowther adjourned the case for sentencing on September 29.