She was around 48 to 53 during the years she was doing this, up until she moved out. She was an attractive brunette, not very tall, with a decent figure. And nice round firm C cup tits for a mature woman, with dark areolas that I saw often.
I never did see her bottomless. She always stripped out of her work clothes down to panties, and put on her nightgown. She unbuttoned and pulled off her blouse, or pulled her sweater off over hear head, unzipped her skirt or slacks, and sat on the bed and slid her skirts and slacks down her legs. When she stood up and hung her skirt or slacks on a hanger, she was in her bra and panties, and she was a pretty sight when she had pantyhose on over her panties, too, which she would slide down after hanging up the other garment.