The actress' grandmother, Carolyn Koch, said Lawrence's mother was impressed with her daughter's new man, 37, reported Daily Mirror.
"Jennifer's mum flew to Los Angeles to meet Chris. We will have to get another chair for the dinner table at Christmas. The family is getting so big we might have to split up for gatherings," she said.
The couple have apparently been dating each other since August.
The 24-year-old Oscar-winning actress' grandmother also insisted that the blonde star has not changed a bit since she became famous.