Deep in a remote island's secluded hot spring, a 172cm/105kg burly man relaxes in the steamy waters. His sweaty, muscular chest rises and falls as his nipples stiffen from an unknown sensation, while his thick cock sways beneath the surface. His powerful thighs spread wide in an M-shape, his round buttocks pressed against the rocky edge. His heavy balls hang low, the purple tip of his cock peeking through the foreskin, swaying with the gentle current. The pungent scent of sulfur mixes with his raw masculine musk, creating an intoxicating atmosphere. When an invisible hand brushes against his untouched erogenous zone, his virgin body shudders violently—'What the... Stop! What's happening!?'