While her friends may secretly have doubts about Vivica A. Fox's engagement to Omar 'Slim' White, her good friend Star Jones is standing by her.

Despite the 'Kill Bill' actress's tumultuous relationship with the Atlanta club promoter, and has offered the couple her support reports RadarOnline.com.

A source told the website: "A few of her friends are worried that White might be using Vivica but Star has been really supportive about the engagement.

"Vivica is a tough lady and she has told her inner circle that they had better back her decision or run the risk of losing her friendship.

"However, some privately doubt White's motives but Star has been talking the decision-up and has told them to give him the benefit of the doubt and be happy for Vivica.

The insider also added that Fox, 46, is keen to have children with White who is 19 years younger at 27.

They said: "Vivica never had any children with her first husband Christopher Harvest during their four year marriage and she wants to make up for that with Omar.

"Her friends are just hoping that Star is right and that Vivica has made the right decision by getting engaged to somebody who is much younger and less known than her."

Check out Vivica's fashion error with a see-through dress! Yikes...