When I visited my nine-month pregnant sister Lily, I was shocked to see her husband Mark treating her like a servant while lounging and gaming all day. Lily, exhausted and overwhelmed, did all the chores despite her condition.

After witnessing his attitude—dismissing my suggestion to help—I challenged him to do everything she does for a day, with a bet: if he failed, he’d have to start being the husband Lily deserves. To make it real, we strapped a watermelon to him to simulate pregnancy.

At first, Mark was cocky, but the weight and tasks soon humbled him. He struggled with basic chores and was visibly worn out by day’s end. He finally admitted how much he’d underestimated Lily’s daily sacrifices.

From that moment, Mark changed. He started helping around the house, caring for Lily, and supporting her through labor. The watermelon bet turned him into the devoted husband and father they both needed.

Before I left, Lily thanked me for saving their marriage—and if Mark slips again, I’m ready with another fruit!