When I was 20 years old and living with my Mom (I was a freshman in college), my best friend was Jakub, 19 years old, who lived with his mother in a house near me. Jakub's mom, a widow, was very attractive with a sassy, upbeat attitude. She would be a prime MILF in today's parlance, but the acronym was not known at the time.
They had a very nice pool and a tall privacy fence, and would make it available to her son's soccer teammates (I was one) after practice. Jakub's mom, a widow, was Eastern European, and had a view that it was fine for men to swim nude. "Bareskin" she called it, with a sly wink.
I was the only one who swam nude with Jakub on a consistent basis. The teammates would occasionally come by for a team swim, but of course we all had our Speedos on then. As time went on, I spent more and more time at Jakub's house and pool, instead of hanging out with our other teammates. We went from skinny dipping in the pool to being comfortably nude in the house, with Jakub's mom (Mrs. L) going about her business as if nothing unusual was happening.
He and I hung pictures for her one afternoon, both of us naked. Mrs. L was full of "advice" about local women and sex. Later, Jakub asked me if I minded his mom's behavior.
I replied, "Your mother is really fun, and I really enjoy being naked. It is very liberating, and super-relaxing to not have to hide our bodies or hold back anything in our conversations - she is much like Dr. Ruth, and has the wit and accent to match."