Heart-stopping sex really could be the end of the affair.
New research shows men are four times as likely to die from a heart attack it if it occurs during sex – because their naked lovers are too embarrassed to call for help.
The French study found that heart problems during lovemaking are the most deadly.
Those who suffered cardiac arrests during intimate moments waited twice as long for resuscitation, compared with those left in peril during other everyday activities.
The differences in survival were found to be caused by delays as shocked wives – or perhaps  mistresses – sought to cover their decency before finding help.
The study by cardiac hospitals in Paris examined 246 cases in which men suffered a cardiac arrest, which results from a heart attack, during some form of physical activity.
In total, 56 per cent occurred during sport, 37 per cent during moderate activity – such as walking.