I was tired from soaking in the bathtub and after I dried off I fell asleep naked on my bed. Sometime after that, my daughter and son in law showed up. They walked past my bedroom and my son in law saw everything. I woke up and, embarrassed, pulled the blankets over my body.
My daughter laughed and told me later my son in law was amazed at how good I looked naked and always wondered what my boobs looked like because they are so much bigger than hers.
Because I believe in tit for tat, I walked in on my son in law when he was taking a shower, opened the shower curtains, said we're even now, and saw everything he had too, and he had a lot. Maybe that was wrong, and maybe for a woman over 40 I should be more mature, but it felt so good to make things even and see what my son in law looked like naked too, and I could tell by his below the waist reaction he loved being seen naked.