Kendra Wilkinson's estranged mother wants to legally block her from talking about their relationship.

Patti Wilkinson is reportedly furious with the 'Kendra on Top' star for recently calling her a ''sadistic abuser'' on her reality TV series and is preparing to send the 30-year-old beauty a cease and desist letter.

A source said: ''Patti is looking to get an attorney not to sue for badmouthing her, but serve Kendra with a cease and desist to get Kendra to just stop talking about her altogether. She's not looking for monetary [compensation] - she just wants it to stop.

''For Kendra to say the cruel and hurtful things she is saying about her mother [is unfair], they are not true. She's trying to make her mom sound like this villain, but Patti is not this nasty person.''

The former Playboy model fell out with Patti last year when she decided to repair her relationship with her father and to stick by husband Hank Baskett after he was accused of cheating on her with a transexual model.

Kendra also reveals in a new clip for the show that she attempted suicide twice as a teenager and blames Patti for most of her emotional issues.

But the insider told gossip website ''Patti is absolutely devastated over this. All Patti wants is to have a relationship with her daughter.''