Showjumper accuses underage girl of faking messages about ‘threesome he had with her and 26-year-old horse rider’

Published on July 29, 2025 at 04:26 PM

A SHOWJUMPER today accused an underage girl of faking messages about an alleged threesome he made her have with him and a horse rider.

Guy Simmonds, 37, and Lauren Jarvis, 26, are accused of targeting the girl despite knowing she was under 16.

Lauren Jarvis.
Lauren Jarvis allegedly had a threesome with a teenage girl
Man hugging a white horse.
Guy Simmonds is accused of abusing the girl in a horsebox

Equestrian boss Simmonds called himself “daddy” in messages to the youngster and would abuse her while his girlfriend was away, jurors heard.

CardiffCrownheard that in January 2024, he messaged fellow rider Jarvis to organise a threesome at her home - asking when he should “pop over”.

Simmonds then allegedly text the girl to inform her of the plan, telling her: “You will both do what daddy says.”

The girl told the court Simmonds got her and Jarvis to “do stuff” with each other before he had sex with both of them.

He today claimed the girl had lied about the encounter and accused her of creating bogus WhatsApp conversations after he rejected her.

Simmonds suggested to jurors she may have used a “pranking” app to create the messages or even messaged herself from another device while using his name.

He added: “I believe the messages to be fake.”

Jurors heard previously Simmonds messaged Jarvis after the alleged threesome to say: “You both loved that haha”.

Jarvis then replied: “Yeah, you missed round two” with a wink emoji.

They later hatched a “pact of silence” when they got wind that the girl was talking about the alleged threesome, the court heard.

Simmonds text Jarvis, saying: “Hey, I have a feeling that [name of alleged victim] 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 messages also showed Simmonds messaged Jarvis before the encounter, saying: “I don’t want to turn up at the same time that her mum drops her off.”

But he claimed today he only sent the text as he was “cheating” and knew the girl and her mum knew his partner.

Simmonds also told the court the girl had previously made him and his partner feel “uncomfortable” by using “inappropriate” language about sex.

He said: “There were rumours that she was telling people that I had been trying it on with her. I was worried.

“The horse world is very small. I wanted to keep my reputation. She was a very volatile person.”

Simmonds ran a riding school that offered “showjumping horse production and sales, coaching and schooling” in the village of Undy in.

He added the girl on Facebook and told her “thanks for accepting” before being told her age, it is said.

The experienced showjumper would allegedly regularly take the girl into a horsebox to sexually abuse her while they were alone at the stables.

Jurors heard that at one point, this was happening every couple of days when Simmonds’ girlfriend was away.

The alarm was raised when the girl told her dad what had allegedly happened and he alerted.

In her police interview, the girl said she felt she could not just walk away because she was scared Simmonds would “hurt me”.

She added: “I wasn’t smiling and stuff when this was going on. If you looked at my face you could tell there was fear.”

The girl claimed there was one occasion where Simmonds took out his phone and allegedly began filming her.

She told police he had a “little smirk on his face”, the court heard.

Simmonds later dumped his mobile in a bin at a Tesco just days before he was arrested for alleged sexual contact with a child.

He denied he was attempting to destroy evidence - and claimed the phone was broken when he was quizzed by police.

The court heard he also burned or threw away a mattress from his horse box where he is accused of repeatedly having sex with the victim.

Simmonds told police he did not have any form of sexual contact with the victim.

He also claimed any messages about a threesome were “banter and a wind up.”

Simmonds denies six counts of sexual activity with a child, while Jarvis has pleaded not guilty to one charge of sexual activity with a child.

The trial continues.

Lauren Jarvis, a woman with long wavy blonde hair, wearing a light-blue tank top.
Jarvis allegedly entered into a ‘pact of silence’ with Simmonds
Lauren Jarvis outside a courthouse.
She has denied the offences

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