The sound of my wife's moans echoed from the speaker. Was she thinking of me? Her heightened excitement was unmistakable. As I slowly stroked my hardened lower body, I felt an inner turmoil. When had I first noticed the relationship between my wife and my younger brother? Seeing them chat happily, I sensed something was off. After several days of observation, a near-certain suspicion took root. I planted a hidden microphone at home and kept listening to their conversations. When I heard that decisive audio, an intense sexual thrill surged through me—stronger than anger. When I played the recording for my wife, I thought I heard her say "It's not what you think" and "I'm sorry." But those words didn't matter. I told her to go sleep with my brother again. She was shocked, resisted, but I allowed no refusal. Once more, she slept with him. At first, she seemed wary of the bug, but soon her ragged, passionate voice filled my ears. After my brother finished and left the house, I stood over my wife and tightly embraced her, then ●● her myself. Both of us lost ourselves completely, indulging in fierce, mind-blowing sex. I don't know when I began craving such twisted desires, but right now, I'm utterly satisfied.