The 60-year-old actress - who has two adopted children , William, 17, and 16-year-old Lillie, from her second marriage to Parker Stevenson - has urged those trying to dodge their responsibilities to "man up" and do the right thing.
She tweeted: " For any of u who constantly ask me to pay your childsupport...MAN Up!! Take responsibility for your CHILDREN!!...(sic)"
Kirstie`s son recently got engaged to his girlfriend, 18-year-old Lauren Sargeant, and while the actress was thrilled with their news, she admits she is not an expert on marriage.
She said: "I feel good because they`re really in love ... You know, I was married [when] I was just 19 years old and that didn`t work.
"Then I was married when I was 30 years old and that`s when everyone said you should get married and that didn`t work.
"So, I don`t think I`m an expert on the subject. So, I think if somebody`s in love and wants to be married then let them be in love and get married."