A 'smirking' showjumper asked 'who am I having first?' before having a threesome with a 26-year-old horse rider and an underage girl, a court has heard.

Equestrian boss Guy Simmonds, 37, and fellow rider Lauren Jarvis, 26, allegedly engaged in the sexual act with the 16-year-old schoolgirl in January last year.

Simmonds, who described himself as 'daddy' in messages sent to the youngster, would also use a horse trailer to have 'repeated' sex with her while his own girlfriend was away, a court has heard.

Prior to the alleged threesome which took place at Jarvis' home, the pair exchanged messages to hatch their plan, with the equestrian boss asking Jarvis when he should 'pop over' for a threesome.

It is then claimed that Simmonds messaged the young girl informing her of the proposed act, telling her: 'You will both do what daddy says.'