This is an audio POV narrated by Begoodformommy, the female version of Diapered Sissy Cuck Listens to His Wife Calling her Boyfriend.
You are tucked into bed while your husband's mistress calls your Him to tells him how much she misses him. He gets jealous of the attention you're getting sometimes, so she reassures him. Does he really think she would fuck a bedwetter? The only time she ever touches you anymore is to change your wet Pullups in the morning. She's even started making you wear Goodnites in the day. She tells Him how she sees you more like a babygirl now, so she decided to have you wear the girls Pullups with Minnie Mouse in the day and she's getting you diapers for night time, so you can't touch yourself while you listen to them fucking.