Aging rocker Bryan Ferry has sparked reports he is dating his son Isaac's ex-girlfriend - behind his back.

The Roxy Music star, 63, is rumored to be romancing Amanda Sheppard, who, at 27, is 36 years his junior.

The couple has been spotted together on a number of nights out in London for the past two months - and Ferry is allegedly keen to keep the news a secret from 22-year-old Isaac, who dated Sheppard when he was a teenager.

A source tells Britain's The Mail on Sunday, "She used to date Isaac about five years ago. It was a fling rather than a full-on relationship and that would have been when she first met his dad...

"Bryan is very keen that Isaac doesn't find out they are together so they have tried to keep things quiet."

Ferry split from his girlfriend of six years, Katie Turner, earlier this year and the break-up was blamed on their own age gap, also 36 years.

Isaac is one of Ferry's four sons from his 20-year marriage to ex-wife Lucy.

(This news article provided by World Entertainment News Network)