Cameron Diaz and Lady Gaga's fiance getting close on movie set

Cameron Diaz and Taylor Kinney, Lady Gaga's fiance, are reportedly growing close on the set of their latest movie 'The Other Woman', as well as off it.

The duo has been seen enjoying coffee breaks and grabbing dinner once the filming is done, the Sun reported.

A source told the publication that the pair is getting on really well and have been hanging out a lot in cafes.

The insider asserted that Gaga, who has been in Mexico on holidays, has already heard the news.

The source said that the two of them have been seen going out together for dinner and were joined at the hip at a drinks party for Kate Upton's birthday.

The insider told the tabloid that Kinney has the perfect excuse for going out for days with Diaz as they're workmates, but they're not just being close at work as the blond beauty has met his family as his brothers have visited the set

According to the source, it has been a stressful time for Gaga, who is already recovering from her jip surgery, and with this on her plate she is more worried.