Sentencing Watkins, Mr Justice Royce described him as a 'sexual predator' and told him he was a danger to the public.
I am satisfied that you are a deeply corrupting influence; you are highly manipulative; you are a sexual predator; you are dangerous. The public and in particular young females and children need protection from you.
He said that Watkins told the author of a pre-sentence report of a 'desire to shock' and the report concluded Watkins presented a 'high risk.'
This craving was fuelled by your use of cocaine and methamphetamine which increase your sexual aggression. You spoke of not knowing to what extremes you would have gone but for your arrest. It is difficult to imagine anything much worse.
The author concludes 'Mr Watkins presents a high risk of causing serious sexual, physical, emotional and psychological harm to children, both male and female, and to women, specifically his female sexual partners.
More top news
Depressed and close to suicide, Louisa Tanner was forced to spend the night in a police cell after being turned away from three hospitals.
The 150th anniversary of the first Welsh settlers landing in Patagonia is being celebrated throughout the Chubut Province of Argentina.
These pictures reveal how Cardiff Central train station will look if a major re-development to meet passenger demand is given the go-ahead.