According to some sources, Simpson has warned Jennifer Aniston to stay away from John Mayer. As you know John Mayer is the former boyfriend of Jessica Simpson. Jessica Simpson was said to be jealous that her ex-boyfriend Mayer is dating Jennifer Aniston but it was claimed that it’s not what you think – Jessica is just super concerned for Jennifer. What a way to spin it.

A source says: “Jessica wants Jen to be aware of what she’s letting herself get into with John. She doesn’t want her to make the same mistakes. John is a ladies man.”