‘Fifty Shades’ fails to whip up copycats

Fears that the “Fifty Shades effect” would whip up a flurry of call-outs to over-zealous lovers went limp as Britain’s biggest fire service revealed it did not attend a single incident.

London Fire Brigade was worried the release of the raunchy film a day before Valentine’s Day could lead to kinky couples getting trapped in objects such as handcuffs or rings as they recreate steamy scenes.

The service launched a Twitter campaign, Fifty Shades Of Red, warning lovers to stay safe in the bedroom — and mind the keys to the handcuffs.