A transgender Scotland Yard volunteer officer raped two young girls after grooming them online, a court heard.

Gwyn Samuels, who was born a man named James Bubb, told one victim she ‘enjoyed being raped’ and forced her to perform a sex act in public which was interrupted by a dog walker, prosecutors said.

The 27-year-old groomed both victims, one of whom was just 12, on internet ‘chat roulette’ site Omegle while posing as a 16-year-old, jurors heard.

They arranged to meet the first girl at a Christian festival where she was camping with her parents, before sexually assaulting her shortly before her 13th birthday, Amersham Courts heard.

Samuels began a 'BDSM' relationship with their second alleged victim when she was 18 and is said to have refused her calls to stop while they were ‘re-enacting’ a rape scenario.