A boss and his secretary who were having an affair saw their romantic tryst interrupted in a wince-inducing manner – after a car crash led her to accidentally bite his penis off.

According to reports in China Press and Sin Chew Daily, the 30-year-old woman was performing oral sex on her boss in a car in a Singapore park, when the car was struck by a reversing van. The impact caused her to bite the man’s penis off.

Just in case this wasn’t already bad enough for those involved, the incident was observed by a private detective who had been sent by the woman’s husband to catch them out.

He described how, shortly after parking, the car started to ‘shake violently’ – but then was hit by the van. He said that the woman screamed loudly, with her mouth covered in blood.