I never thought I'd get caught, but Sister Clara's piercing gaze saw right through me. I was sitting in the pew, trying to be discreet, but my eyes kept drifting to her imposing latex boots. The way they shone in the dim church light was irresistible. My hand instinctively wandered to my lap, and before I knew it, I was stroking my cock, mesmerized by the Sister's dominant presence. But then, her eyes locked onto mine, and I froze. She knew. She knew exactly what I was doing. The Sister's expression turned from serene to stern, and she strode towards me, her boots clicking on the stone floor. "You filthy sinner," she hissed, her voice low and menacing. "You dare to defile the Lord's house with your depraved desires?"