In the dead of night, a nun's gaze falls upon her brother's immense cock tenting his bedsheet. Her curiosity piqued, she inches closer, her heart pounding in her habit. She reaches out, her fingers brushing the bulge, feeling the heat and hardness. He stirs, his eyes fluttering open, meeting hers. For a moment, they freeze, then, with a silent nod, she pulls back the sheet. His cock springs free, massive and throbbing. She tentatively touches it, her hand wrapping around the shaft. He groans, his hips bucking slightly. She looks up at him, her eyes filled with a mix of fear, excitement, and guilt as she begins to stroke him, her innocent touch driving him wild.