A man who "brainwashed" and sexually abused a girl along with a young boy during a 14-year reign of terror must wait to hear his fate.

David Sharp, of The Cygnets, Feltham, showed no emotion as an Isleworth Crown Court jury found him guilty of 21 counts of rape, sexual assault, violence and false imprisonment. He will be sentenced on December 18.

After the four-week trial, the jury took four hours to make their decision on the horrific string of offences against two children, who at the time the offences took place between 1995 and 2009, had been as young as 11.

It emerged that the 49-year-old had only recently been released from prison for manslaughter when he began his campaign of abuse.

Sharp is said to have repeatedly raped the girl from when she was 11 years old until the final time, in January this year - when she was 23.

The girl had one child by him but it was born prematurely at 26 weeks and died.

He also targeted the boy, brutally beating him, raping him once and on numerous occasions forcing him to perform oral sex on him, giving him chocolate “to make it taste nicer”.

Prosecutor Jonathan Davis said: “He abused both of them sexually and physically and, as I have said he did that by control, so much so, as you will hear, that he remained her abuser right up until she was almost 24.”

During his abuse of the boy he had punched him in the mouth, breaking his teeth, falsely accused him of sexually assaulting a two-year-old girl, and had thrown him down a flight of stairs.

On one occasion Sharp had tried to make the boy and girl have sex but the boy had been unable to do it.

Sharp had denied charges of rape along with charges of causing actual bodily harm and grievous bodily harm, and incitement to commit rape, false imprisonment and indecent assault.