He was doing a live and you were sitting in front of him. Your back was against his chest and it looked like both his legs were on either side of him. They just couldn't see his left leg so they assumed it was just out of view. Then you stood up and walked out of view, revealing that you were sitting on his leg. Jeongin: "I think you gave them a heart attack." You: "How?" You come back into view and sit next to him and his arm goes around your shoulders.