An evil mother who encouraged her partner to rape her young daughters in front of her to benefit their 'sexual education' has been jailed for ten years.
The 65-year-old urged her former lover to systematically rape her three girls - all under the age of 16 - over a seven-year period.
She told her children to wear provocative 'adult' underwear before plying them with alcohol.
The grandmother, from Weston-super-Mare, Somerset, then drove the girls to Bleadon, North Somerset, where they were raped separately by her partner.
Bristol Crown Court was told the woman only allowed the rapist to abuse her daughters when she was present as she derived a sexual thrill from the abuse
Her actions, which took place over a seven-year period in the 1970s and 80s, were only reported to police in 2010 when a victim heard the rapist had died.
Officers quizzed the mother and she fully admitted what she had done
. On Wednesday, she pleaded guilty to 25 charges of aiding and abetting the rape of her children
The grey-haired pensioner - described as 'very intelligent' - said 'thank you' as she was taken away to start her sentence.
Miss Macfarlane said: 'Her boyfriend said she had ruined her life and she should stop that happening again by giving the girls sexual experience.
'He said it happened in different cultures, where young women are given sexual experience by a trusted friend or a member of their family.
'He said it would do them good.
'She says now it is disgusting and she must be punished. She is very intelligent. She is a very nice woman.'
She added that the mother would have stopped the abuse if the girls had ever resisted.
The court was told how the woman had led an unblemished life since the rapes and had even had her daughters to stay with her and looked after her grandchildren