When I arrived at my pregnant sister Lily’s house, I didn’t expect to find her husband, Mark, treating her like a servant. Lily was nine months pregnant and exhausted, while Mark lounged on the couch, playing video games. He dismissed my suggestion to help with chores, insisting it was “women’s work.”

I proposed a bet: if Mark could handle Lily’s daily tasks with a “pregnancy belly,” I’d be his maid for life. He laughed and agreed. I prepped a watermelon, wrapping it to simulate a pregnant belly. Mark struggled immediately, wobbling and sweating through chores.

By the end of the day, he was defeated, apologizing to Lily with newfound understanding. That night, Mark helped with chores, cooked, and assembled the baby’s crib. His transformation was complete; he became Lily’s devoted helper.

When their baby girl arrived, Mark was supportive and loving. As I left, Lily thanked me for saving their marriage. The watermelon bet had worked wonders, transforming Mark into the husband and father Lily and their daughter deserved.