Actress Jessica Biel has once again been forced to deny reports she is expecting her first child with boyfriend Justin Timberlake.

The 26-year-old star has been at the centre of pregnancy rumours since reportedly moving into Timberlake's Hollywood Hills home in June.

But Biel has dismissed the resurging allegations, with her representative telling American magazine Us Weekly: "The reports are false."

Timberlake has been romancing the Hollywood actress since early last year when she joined him at the Sundance Film Festival in Utah.