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
Ryan Giggs accepts he must get used to the loneliness of management again on his Wales journey.
Skies will remain cloudy for most with further rain or drizzle through the afternoon.
Labour needs to "show leadership" and warn about the risks of Brexit, Owen Smith said after being dismissed from the shadow cabinet.