A judge at the High Court in Livingston yesterday described Colin McKay’s sex crimes against young and vulnerable women as “nasty attacks”.
A jury found the father of two guilty of raping his first victim on two separate occasions in the summer of 2005 after he walked uninvited into her home.
He took the teenager’s four-month-old daughter out of her arms and laid the baby on the corner of her bed before pinning her against a wall and having sex with her without her consent.
The second time he burst into her home again a few days later, forced her to the floor and raped her.
McKay, 34, was also convicted of raping a 15-year-old babysitter in his home in Armadale, West Lothian, while his wife was on holiday in Blackpool between June and September 2005.
The girl, now aged 25, gave evidence that he climbed into bed beside her and repeatedly tried to kiss her before raping her.
A jury delivered unanimous verdicts finding all three rape charges proven and also returned a majority verdict convicting him of indecently assaulting a third woman in the summer of 2011.
McKay, of McNeil Crescent, Armadale, who was described in court as an unemployed bankrupt, had denied all the charges against him.
His historical sex crimes only came to light after one of his victims went to the police in 2014, sparking an official probe by detectives.
Ian Duguid, defending, said McKay had two previous convictions from 14 years ago, relating to offences he committed as a 21-year-old.
He added: “The offences of which he’s been convicted today will certainly result in the imposition of a custodial period and Mr McKay accepts and recognises that.”
Judge Lady Wolffe called for criminal justice social work reports into McKay’s background.
She added his name to the sex offenders’ register with immediate effect and ordered that the conviction be reported to Scottish Ministers for the protection of vulnerable young adults.
She told McKay: “By the verdict of the jury you have been found guilty of the four charges that were remaining.
“Three of them are very serious indeed involving two complainers, both vulnerable and of young ages. The fourth charge of which you’ve been convicted is itself one of indecent assault.
“These are very serious matters indeed – quite nasty attacks that were described by the complainers so you can expect to be receiving a substantial custodial sentence.”
She will sentence McKay at the High Court in Edinburgh on July 3.