At the same time he found himself in aprons. At first very practical ones that were just to protect his clothes but as his allocated tasks became more feminine so did his aprons, until he only wore frilly feminine creations.
Then she sought his help with her dressmaking!
It was just a short trip from there to total femininity and a transfer from his wife to his mother-in-law. He would of course still be the maid to his wife and her new female lover!