A woman who posed as a teenage boy to groom then sexually assault underage girls has been sentenced to eight years in prison.

Gemma Watts, 21, used Snapchat and Instagram to lure her young victims, duping them into thinking they were in a relationship with a boy their own age.

Disguising herself and claiming she was a 16-year-old boy, she travelled the country sexually assaulting girls as young as 13, pretending to be ‘Jake Waton.’

Watts, who lived with her mother in North London, has admitted attacks on four youngsters, but police fear she may have assaulted as many as 50.

All of her victims, including their parents, believed that Gemma was a 16-year-old boy who was in a relationship with the young girls, only finding the truth when they were told by police.

Using social media apps including Instagram, Snapchat and Whatsapp, Watts set up "very believable" fake profiles where she would groom underage girls with messages and intimate pictures, before travelling all over the country by train to sexually assault them.

The sexual predator travelled from her home in Enfield to visit her victims at their homes all over the country, ranging from Hampshire and Plymouth to Surrey and the West Midlands.