Ting Su, 29, caught bed-hopping husband Cheng, 30, romping naked in a car-park along with her twin sister after using a mobile phone tracker to locate their whereabouts, The Mirror reports.

And when the wailing wife confronted the treacherous twosome about their red-hot rear-seat rendezvous, the stunned pair reacted by jumping out of the vehicle.

Quick-thinking Ting seized her chance for instant karma and drove off –leaving the secret rompers bare-bummed and red-faced on the tarmac at a local shopping centre in the city of Suzhou, eastern China.

One witness said: "It was so funny. Loads of people were grabbing their phones and I did as well. He was banging his fist on the window and shouting at her, and she just wasn't playing ball."

Naij.com reported that it was later discovered that Cheng had been having an affairs since Ting, who has now filed for divorce, gave birth to twins.