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.

Dropping off the samples at the lab, I felt a mix of fear and anticipation, eager for the results. As days passed, my interactions with Fiona became strained. Every time she visited, my suspicions deepened, making it harder to hide my unease. The tension finally reached a boiling point when David, Fiona, and I were watching TV together. I snapped, demanding to know the truth about Sofia’s parentage, revealing the birthmark I had seen. Both David and Fiona were stunned by my accusation.