A twisted father raped his own teenage daughter in a bid to "show her" that sex with men was better after she told him she was gay.
The 54-year-old reacted with "uncontrolled anger” by brutally attacking the 16-year-old who had confided in him that she was "struggling with her identity".
The father, who cannot be named to protect the identities of his victims, also raped his other daughter during two decades of sexual abuse.
He has now been jailed for 21 years after being found guilty of three rapes during the 1980s and 90s.
The father had pleaded not guilty at Warwick Crown Court to nine charges of indecent assault, one of indecency with a child and three of rape.
He was convicted of all charges after a trial.
He must serve an additional five years on licence following his eventual release from prison and will have serve at least two-thirds of the sentence, rather than the normal half.
The court had heard his offending spanned throughout the 1980s and 90s.
It began with sexual abuse of one daughter and, after she left home, moved on to abusing the other daughter.
The judge told the defendant he had committed serious sexual offences against his daughters for 21 years.