Irishman, Trevor Lawler, 32, bluffed his way into the victim”s house at 7am by knocking on her door and claimed falsely he had escaped a kidnapping.
The attacker pushed the 24-year-old against a wall and began punching the woman who was holding her 12-month-old child.
However, the victim fought back and bit a piece of skin from Lawler”s hand.
The attacker, of Failsworth, Greater Manchester, then stood over the woman and shouted: “If you don”t shut up, I will kill you stone dead right now” and then raped her in front of the baby, at one point addressing the child to say, “this is all your mother is f***worth”.”
When she managed to escape and run to a nearby home, she was so disfigured from the beating that her neighbour only recognised her from the sound of her voice.
Police examined a piece of skin recovered from the victim”s mouth and the DNA profile matched Lawler”s.
They discovered that Lawler had just hours earlier attacked another woman, aged 33, when she woke up in bed alongside her seven-year-old son at 4.40am to find Lawler standing over her.
Following a manhunt, Greater Manchester Police identified Lawler and he was arrested.
Lawler, who is originally from Dublin, was ordered to serve a minimum of 10 years after he admitted rape, attempted rape, threats to kill, assault by penetration, trespass and wounding with intent.
The rape victim said: “Because of the injuries I could not see my own son for three days as my face was so bruised he would not have recognised me.
“The family dog didn”t even recognise me. I felt disgusted with myself and felt violated. I still see my baby”s face watching Lawler attack me and I will never forget how he looked as he watched from right next to me.
“My child should never have had to witness this. I have always been able to look after myself but this made me feel helpless in my own house. I can no longer stand to hear the Irish accent because it reminds me of him.”
The second victim said: “I feel guilty every time I look at my son. I feel I should have done more to protect him from this. I feel I have failed my son.
“My son will not play out and wants to be with me all of the time. I feel like he has changed so much because of what happened, he is not the little kid he once was.”
Sentencing Lawler, Judge Hilary Manley said he was a dangerous offender who posed a serious risk to women and children in the future.
Discussing the first incident, she said: “You stole her son”s innocence that night, as well as everything else you did.”