Via Bluetooth

A Japanese and an American are sitting next to each other in an airplane. The Japanese turns to the American and says “We are so technically advanced that we have exact replicas of ourselves so we can be at two places at the same time”.
He continues, “Therefore, I can be at work and at the same time have sex with my wife.”
All this while the American stays silent, then suddenly gets up and starts shaking his hips back and forth.
The Japanese, confused, asks “What the hell are you doing?”
The American, still shaking his hips, replies “I’m fucking my wife via Bluetooth!”