I decided to finally renovate the room, but since it would take time, the three of us—my wife, my stepmother, and I—ended up sleeping side by side in the same bed. My stepmother was slender with big tits, and I became so aroused that I couldn't fall asleep. The next night, I listened to her moans as she secretly pleasured herself, watching her intently. The following day, after confirming my wife had gone out, I embraced my stepmother and confessed what I'd seen. Pressing my already hardened cock against her, she...