Sex And The City star Kim Cattrall has ended her romance with her boy-toy lover, according to U.S. reports.

The blonde actress had been dating Canadian chef Alan Wyse - 20 years her junior - since 2004.

But the pair has decided to go their separate ways after the relationship "fizzled out", reports America's OK! magazine.

A source tells the publication, "It was a long time coming; they had some trouble in April and since then things have fizzled.

"They realised they were at different points in their lives. They still care about each other and will remain friends."