In the stark, white-tiled bathroom, the young nun-in-training, her habit still pristine, struggles with her vows. She watches, entranced, as her brother, a rebellious seminarian, unzips his pants, revealing his erect, veined cock. He jerks off, his fist moving rapidly, and she can't help but stare, her pussy throbbing in time with his strokes. She's torn between her vows and her visceral need, and as he grunts, his hot piss arcing into the cold, hard sink, she feels a surge of her own fluids, drenching her panties. She falls to her knees, her mouth open, catching the last drips, tasting her own shame and desire.