The Sister He Shouldn’t Love

Sunday Morning The house smelled like lavender and freshly brewed coffee. That fragrance wasn’t just a scent; it was the rhythm of their Sundays, the ordinary song Jason had learned to lean on. The steam of coffee drifted lazily through the living room, clinging to the soft fabric of the sofa where he sat, remote in hand, flicking through channels without focus. Melissa’s voice hummed from the kitchen, soft and natural, blending with the sizzle of eggs. She was in her robe, moving with the calm certainty of a woman who had made this breakfast a thousand times before. Jason let the familiarity steady him. Safe. Predictable. Comforting. Then the front door opened. “Morning,” came a voice behind him. Jason turned. His hand froze on the remote. Rachel. Melissa’s younger sister. The complication wrapped in an oversized T-shirt. Her hair was messy, spilling in dark waves around her face. Her bare legs glowed pale against the morning light, and the shirt she wore barely brushed her thighs. No bra, no socks, no apology. She leaned against the doorframe with a lazy smile that seemed to have been practiced in dreams. “Didn’t mean to wake anyone,” she said. Her gaze hooked his, held it a fraction too long. Jason’s throat tightened. “You didn’t.” “The couch is killing my back,” Rachel added, rolling her shoulders so the hem lifted higher. From the kitchen Melissa’s voice carried, cheerful and unbothered: “Coffee’s ready!” Rachel’s smile curved into something sharper. “Perfect. I like it… hot.” She sauntered toward the kitchen, bare feet whispering against the wood floor, leaving Jason to stare after her. He rubbed a hand across his jaw, exhaled, and whispered to himself: Don’t stare. Don’t. But he already had. --- The kitchen looked like any other Sunday—toast cut into triangles, eggs folded perfectly soft, sunlight stretching over the countertop. Melissa, busy and graceful, reached for plates without noticing the tension that had followed Rachel in. Jason poured himself coffee, trying to steady his grip, but the mug rattled slightly against the pot. He told himself it was the caffeine. Rachel leaned on the counter across from him, mug in hand, one bare leg bent at the knee so the shirt slid higher, offering the faintest outline of her hip. Steam curled between them. “Morning, brother-in-law,” she teased. “Rough night? You look like you lost a fight with the TV.” “TV started it,” Jason said, forcing a smile. His voice sounded almost normal. Melissa laughed, turning from the stove. “Ignore him, Rach. He’s grumpy till he eats.” She slid eggs onto plates, then leaned in to kiss Jason lightly on the cheek. A simple, ordinary kiss. The kind that used to be enough to anchor him completely. Jason smiled back at his wife, but his eyes slipped—just for a second—toward Rachel. She was watching, lips curved, eyes bright as if she knew exactly where his attention had strayed. He swallowed. Stop. Just stop. --- They sat at the island. Melissa busied herself with strawberries and toast. Jason buttered his triangle with exaggerated care, spreading all the way into the corners as if butter could save him. Rachel tilted her head. “You butter like you’re painting icons. Devotion and detail.” Melissa snorted. “He alphabetizes our spice rack too.” Jason gave a weak shrug. “Systems save time.” Rachel smiled, her tongue brushing her lower lip as she sipped her coffee. “I like systems.” The air thickened. Jason coughed into his mug. Melissa, oblivious, launched into the day’s plan: shelves for the bathroom, laundry, groceries. Her voice filled the kitchen like sunlight—warm, steady, safe. Jason nodded at the right times, but Rachel’s foot brushed his ankle under the island, a ghost of a touch that made his pulse hammer. He froze. She didn’t. The pressure lingered, not heavy, just enough to claim space in his nerves. “You’re quiet today,” Melissa said to him. “Just tired,” he answered quickly. Rachel stole a piece of his toast, chewing slowly, eyes locked on his. “He’s fine. He just doesn’t like sharing breakfast.” Jason put down his fork with deliberate care. “Rachel.” She widened her eyes, mock innocent. “What? Breakfast is sacred.” Melissa chuckled and pushed her plate toward her sister. “Take mine too. You hardly eat enough.” Jason forced himself to breathe, to focus on Melissa’s smile. But when Rachel’s tongue flicked to catch a drop of strawberry juice on her lip, he nearly forgot how. --- Later, Melissa carried the laundry basket down the hall. “Back in a minute!” she called. Silence closed around Jason and Rachel like a secret. The kitchen light glowed steady, highlighting every curve of her. “You were staring,” Rachel whispered. “No,” he said too fast. Her smile was sharp, knowing. “You were.” He clenched his napkin. “Stop.” “Stop what?” Her voice dripped with false innocence. “Breakfast?” “Whatever this is.” Her gaze swept his face, lingering on his mouth. “You’re not very good at lying, Jason.” Heat spread up his neck. “This isn’t—” She leaned forward, close enough he caught the scent of her coffee, the faint trace of her skin warmed by sleep. “Relax,” she murmured. “I’m just teasing.” But it didn’t feel like a tease. It felt like fire waiting for oxygen. Melissa’s footsteps returned, breaking the spell. Rachel leaned back instantly, smile bright, as though nothing had happened. “Laundry crisis averted?” “Clean towels at last,” Melissa laughed, dropping the basket. Jason gripped his coffee, willing the heat to burn away what Rachel had left behind. --- The morning ticked on. Plates clattered, water ran, sunlight shifted. To anyone outside, it looked like a family eating breakfast. Inside, Jason felt like every breath was a negotiation. Rachel brushed past him at the sink, her shoulder grazing his arm, the cotton of her shirt whispering against his skin. He nearly dropped the plate in his hand. Melissa’s voice floated over the water: “Teamwork.” She bumped her hip against Jason’s, kissed his shoulder casually, then reached for the dish rack. Rachel’s eyes sparkled over her mug. “Adorable. Anchors, towels, true love.” Melissa laughed. “True love is level shelves.” Jason forced a laugh, but when he glanced at Rachel, she met his eyes and whispered so only he could hear: “Try not to stare while you work.” He stiffened, throat dry. Melissa called from the hallway: “Battery drawer, Jase!” He grabbed the stud finder, shoulders tight, tools clattering in his hand. He followed his wife down the hall, leaving Rachel behind with her secrets, her smile, and the silent promise of trouble. Jason exhaled, heavy, certain. This was going to be a long, long week.