I think so was Dean Wormer's wife.
I always thought of MILF as a sexy woman old enough to have children, not necessarily one who has children.
I don't think it was established one way or another whether Mrs. wormer and the Dean had kids.
In the case of Jennifer O'Neill her not having kids was actually kind of a plot point.
She isn't a movie mom, but I got admit that I quite enjoy Wendy McLendon-Covey on the Goldbergs, especially when they put her in those 80s workout tights
