Scarlett Johansson has been giving relationship advice to Jessica Biel.

The 'Match Point' star - who has previously been romantically linked to Jessica's boyfriend Justin Timberlake - has been counseling her friend on how to cope with infidelity rumors.

A source said: "Jessica knows she and Justin are happy and there are no problems. But she wanted to get a female perspective on the best way to handle all the rumors about him with other girls."

"Scarlett told her to ignore the speculation and concentrate on the relationship."

Jessica is now hoping Scarlett and her boyfriend Ryan Reynolds will join her and Justin on a double-date.

The source added to America's OK! magazine: "Jessica has suggested that when she gets back from filming her latest movie 'Easy Virtue' she could teach Scarlett to play golf so they could double-date with Justin and Ryan."

Last weekend it was reported Justin has been secretly dating Hollywood actress Kate Hudson for over a year.

A source said: "Kate is very private and refuses to be seen with Justin in public. She doesn't want to be humiliated like his ex Cameron Diaz was when he dumped her. But they talk every day on the phone and see each other often."

Justin and Jessica have been dating for more than a year.