Michael Drinkwater, 36, is beginning an indefinite jail sentence after he admitted first attacking his victim when she was just 13 years old.
He raped her 14 times over two years and also indecently assaulted her 13-year-old friend at Bowley Scout camp in Great Harwood.
Burnley Crown Court heard how Drinkwater, of Exchange Street, Accrington used sex toys and "dirty dare games" and thought there was nothing wrong with his behaviour.
...and this man could be back on the streets in under 5 years -
Scout Camp Sex Fiend Jailed (from This Is Lancashire)
Should people like this ever be released? What are the alternatives?
Suz x.