Unnatural attraction; the torrid tale of Delores
I revised and rewrote this story; I always liked it, but the version posted wasn't right.
Delores is an old woman, seducing a teenage boy while telling her life story.
She's had many lovers in her years, starting with her old boss when she was a teenage secretary.
As she gets older, her lovers get younger, until we reach the present day and a 50 year age gap.
I guess the big reveal is sort of obvious; still, I don't want to spoil it.