The story i'm trying to find involves a couple who enters some type of dream state or realm of the boyfriend or husband. The girlfriend or wife gets increasingly more beautiful as she takes attributes from her partner's ex girlfriends from within his mind. Starting with a singer, she puts on fishnet stockings and drinks lemon juice. She then picks up a metal dildo when suddenly the singer wakes up and she thinks the wife of the guy is a burglar and attempts to stop her. They wrestle over the dildo when lightning strikes them both. When they come to the singer has shriveled up and is old with no curves while the wife has has all of the singer's curves including her voice thanks to the lemon juice she drunk earlier.
Please if anyone finds this story I would be very grateful and I would be happy to return the favor in the future if anyone is also looking for a specific story. This is all I remember and I can't remember where I read it or if its even on this site or not.