A man who raped an 11-month-old baby and continued to rape her for the next three-and-a-half years has been told he could face a life sentence.
Lord Hardie place McKerrell on the sex offenders' register
At the High Court in Glasgow Iain McKerrell, from Paisley, admitted the offences, which took place between December 2000 and July 2004.
The 39-year-old also admitted sexually abusing a 12-year-old girl.
He has been placed on the sex offenders' register and will be sentenced at a later date.
The court heard how the abuse McKerrell put the toddler through came to light when the girl revealed he had "done bad things" to her.
McKerrell, of Shotroods Road, admitted the repeated rape of the child at two houses in the town.
He also admitted the systematic sexual abuse of another girl by using lewd, indecent, and libidinous practices towards her in houses in Erskine and Paisley.
Alan Mackay, prosecuting, said the girl's ordeal began when she was 12 and lasted four years.
After the sexual abuse came to light the victim was admitted to the psychiatric ward of Paisley's Royal Alexandra Hospital.
Mr Mackay said she was suffering from stress and threatening suicide, which was the reaction to the sexual abuse and other factors.
Frances McMenamin QC, defending, said McKerrell - an alcoholic - claimed he had no recollection of any of the events involving both children.
Lord Hardie warned McKerrell that for the protection of the public he could serve an extended sentence if and when he ever got out of jail, or even a life sentence.
The judge called for reports and McKerrell had his bail revoked pending sentence later this month.