I remember reading a doujin that was a yuri. There was a woman who went to the community center on her free time and while there were mostly old women there, this time there was a taller, younger woman. The younger woman was there because any younger women just became attracted to her at sight and she was safe here since everyone is old. So plot goes on, they have sex. I recall there being a metaphor of them being similar to animals, i recall the older woman being a rabbit? And the younger one was either a wolf or a lion. And at the end the older woman wants to introduce the younger woman to her daughter and they worry about the daughter falling to her charms as well but it turns out the daughter is also like the younger woman, a dominant lesbian so the attraction doesn't work on her and they live happily ever after.