In the dimly lit, stuffy room, Karthik's eyes widened as he caught a glimpse of his sister's pondatti pundai through the slightly open bathroom door. Her silhouette, back arched, fingers dancing on her wet koothi, ignited an unfamiliar hunger within him. As she turned, her eyes meeting his, a moment of tension hung heavy before she invited him to join her, her voice a sultry whisper, 'Why not taste, Karthik?'