This are his own words. He says she never was a good mother, alcohol made her forget many time she was one. Instead, he started to take care of her when he was younger. The other thing she likes as much as drinking is sex and always tries to use it as an excuse for her irresponsibility. When she's drunk she likes to start with a good and long blowjob and she does it like a pro, then when she's sober, she feels guilty and wants him to punish her with a good hard fuck.