ROE-128 My stepmother's sexual obsession

How long has it been since I've lived with my mother-in-law? My family is harmonious, but today my mother-in-law suddenly said that she wants to become a lingerie model. It seems we are secretly applying for both couples, but my wife is embarrassed because her mother is exposing her underwear, so she firmly opposes it. I'm confused because I can't figure out the situation when I see my mother-in-law's lingerie, and that night I couldn't look away from the gap in the room. And the image of my mother-in-law wearing beautiful lingerie immediately struck my eyes.