One day, I was horrified to notice a familiar birthmark on my niece, Sofia—the same mark I had seen on my husband, David. Though my thoughts raced, I decided not to jump to conclusions. Instead, I secretly planned to conduct a DNA test to uncover the truth. While relaxing under the shade of a cedar tree, I cradled Sofia in my arms, enjoying the warm breeze. She wasn’t my child, but the love I felt for her was deep. Fiona, my sister-in-law, had recently moved nearby with Sofia, bringing an unexpected but welcome change to our lives. As we enjoyed our time together, I took a moment to change Sofia’s diaper.

That’s when I saw it—the birthmark on her back. It was identical to David’s. The sight of it froze me in place, igniting suspicions about David and Fiona’s relationship. Still, I kept calm and continued our casual conversation. Later that evening, I couldn’t shake the image of the birthmark. As I helped David dry off after his shower, my eyes were glued to the mark on his back. My doubts only grew stronger. To find out the truth, I decided to perform a secret DNA test between Sofia and David. The next time Fiona visited with Sofia, I discreetly collected a saliva sample from Sofia and a hair sample from David, all while maintaining a facade of normalcy.