Levi, freshly eighteen, stood tall at about 5’11”, his posture crisp and his body toned with lean definition. His white Jockey boxer briefs fit snugly, highlighting his athletic frame — firm, smooth, and with the faint outline of a six-pack across his midsection. He didn’t seem exactly thrilled about taking part in Kay’s unusual challenge, but there was a quiet determination in his eyes, as if he’d decided to see it through.
    He began cautiously, letting out the smallest trickle of piss into the fabric, murmuring to himself as though talking through each moment. His stance was steady at first, but the faint tremor in one leg betrayed the growing pressure he was trying to hide. As minutes passed, subtle signs began to appear — his jaw tightened, his lips pressed together, and the light furrow of his brows hinted at the mounting discomfort.
    Kay, clearly intent on making things more difficult, began to test his patience. Levi shifted in place, his leg now bouncing more noticeably, but he kept his composure. When asked to stand still, he obeyed, shoulders square and still, though his fingers twitched restlessly at his sides. A little later, he sat back down, sipping more water as he explained in a low, controlled voice how the pressure was building. The signs became harder to hide: his leg moved almost constantly, his breathing deepened, and a faint flush crept across his cheeks. The contours of his stomach seemed less defined now as his posture slightly curled forward, instinctively guarding his middle.
    By now, it was clear the strain was wearing on him. His lips pressed together in quick bursts, his jaw flexed, and every so often, he’d pause, steady himself, and shift his weight. The tension in his frame was unmistakable — the kind of stillness that only comes from trying not to break. Finally, he gave a short, breathless laugh, shaking his head. “This is it for me,” he said, his voice low. His knees bounced rapidly as he stood, face tightening with the effort, until at last, he reached his breaking point, soaking those white Jockey boxer-briefs.