I invited my close friend to stay the night, and as soon as he arrived my wife started acting unusually flirty. Later, when the three of us ended up in the bedroom, the air felt heavy with tension. My wife slipped into bed with us, clearly too excited to sleep. She reached for my friend first, teasing him in a way that made it obvious she had been waiting for this moment. Before long she shifted onto her hands and knees, offering herself to him without a word—her body language said everything. I was half-a slep when I realized what was happening, and the moment she noticed me stirring, she turned to me with a look that mixed guilt and desire. She slid closer and put her lips on me, eager to keep both of us involved as the night heated up. The rest of the moment blurred into a rush of jealousy, excitement, and shock—none of us pretending anymore what we all wanted.