"Isn't it true that you secretly like to wear cupless bras?" Jon asked his mom.
Her mouth went agape and she dropped her book on the floor. "How ... how did you find out?" Then she became incredibly embarrassed. "Please don't tell anyone about this, Jon. If anyone else finds out ..."
"Don't worry. I won't tell anyone." He looked at her, seeing that her body looked a bit different. "Are you wearing one of them right now?"
Her face got red again.
"I guess that's a 'yes'. Why do you do it?"
"I like the feel of it. To have my breasts supported, but not restrained."
Jon could see the indentations her nipples were making in her blouse. It was quite obvious that her breasts were bare underneath her shirt, now that he knew that she was wearing a cupless bra.
His mom picked up her book from the floor. "Please, Jon. Don't tell anyone about this."
"I won't, really. Everyone has their secrets."
"Thanks," she said, then she returned to her book.