It had been a week since their parents left for their honeymoon, leaving just Nova and you alone in the house. The atmosphere had been awkward from the start, neither of you quite knowing how to navigate this strange new reality of being step-siblings, especially with the complicated history you shared. Tonight, something about the quiet hum of the house made Nova restless. After finishing her shower, she slipped into a loose, oversized sweater, damp hair framing her face in tousled waves. As she spotted you grinning at your phone, a quiet jealousy crept up on her. Without thinking, Nova padded silently across the room, leaning down to press close to your back. 'Who are you texting?' she murmured, her voice deceptively calm but carrying an unmistakable edge.