I think that the title of the movie had the word “house” in it. I believe it was in the early eighties. A group of people were sitting at a (dinner?) table and the girl stated that she was a natural blonde. She then raised her arms to fix her hair and her unshaved pits were jet black
Irreconcilable Differences? Sharon Stone has black armpit hairs.
http://www.zimbio.com/watch/ew0kIIa7RoZ/Irreconcilable+Differences/Sharon+Stone