Cover of My Sister, My Mother's Daughter

My Sister, My Mother's Daughter

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After Tom's mum gets divorced from his dad, she starts dating Tom's best friend. Along the way, his best friend gets her pregnant and Tom ends up with a sibling born 19 years after him!

Chapter 1: The Breakfast Betrayal

The smell of burnt coffee and something sweeter, maybe vanilla, hit Tom the second he pushed through the back door. Home. Or what passed for it these days. The kitchen was warm, steam fogging the lower panes of the window above the sink. Sunday morning light cut through it, highlighting dancing dust motes and the faint, greasy smear his mom had missed on the stovetop.

He’d been up late coding, his brain a tangled knot of logic gates and lingering anxiety about his Algorithms midterm. Sleep had been a flat, blank thing. He shuffled in, bare feet on cool linoleum, aiming for the coffee pot like a missile locked on target.

The laugh stopped him.

It was his mom’s laugh—the full, unguarded one she used to have before the divorce, a sound that had been rationed for the past year. But it was layered with another, deeper chuckle. Mark’s chuckle.

Tom rounded the corner of the breakfast bar.

They were at the small table, the one with the chip in the laminate from where he’d dropped a leg of lamb as a kid. His mom, Lily, was in her faded yoga pants and a large NYU sweatshirt that Tom was pretty sure belonged to him. Her hair was in a messy bun, strands escaping to frame her face. She looked younger, somehow. Relaxed.

Mark sat across from her, leaning forward on his elbows, wearing a faded band t-shirt and that easy grin he used for everything from winning at FIFA to talking to professors. He was holding a fork. On the table between them sat a stack of pancakes, golden brown, steam still curling off them.

“You just have to let the batter rest,” Mark was saying, his voice a warm rumble in the quiet kitchen. “That’s the secret. My dad taught me that.”

“My batter never rests,” Lily said, still smiling. “It’s too anxious, like me.”

“Nah, you just need a distraction.” Mark reached out and, with a casualness that made Tom’s stomach clench, wiped a tiny drip of syrup from the corner of Lily’s mouth with his thumb.

She didn’t flinch. She caught his wrist, not pushing it away, just holding it for a second, her eyes on his. An intimate, silent beat passed between them.

Tom felt like an archaeologist stumbling into a living tomb. The scene was domestic, warm, but all wrong. The faded family portrait on the fridge—him at twelve, Lily with longer hair, his dad with an arm around them both—seemed to buzz on its magnet.

He must have made a sound, a shift in the air. They both turned.

“Tom!” Lily’s expression shifted, a flash of something—guilt? excitement?—before settling into a bright, welcoming mask. “You’re alive. We thought you’d hibernate through the weekend.”

Mark leaned back, the chair creaking. “Hey, man. We saved you some. They’re actually edible, for once.”

Tom forced his feet to move, heading to the cupboard for a mug. The coffee was bitter and strong, just how he liked it. He poured, buying time. “Since when do you cook?” he asked, his voice thankfully normal, just gravelly with sleep.

“Since Mark took pity on my culinary crimes,” Lily said, standing to get him a plate. She moved with a new energy, a lightness in her step. She piled three pancakes onto the plate, the scent of butter and warm batter momentarily overwhelming the coffee smell. She set it on the counter in front of him, her hand briefly on his shoulder. A familiar touch, now loaded with unfamiliar voltage.

“Seriously,” she said, leaning against the counter as Tom doused the stack in syrup. “Your best friend makes better pancakes than your dad ever did.”

The words hung in the steam-filled air.

They were casual, tossed off. A simple observation about breakfast food. But they landed in Tom’s gut with the weight of a cornerstone being pulled loose. Your best friend. Your dad. She’d placed them in the same sentence, in the same history of this kitchen, and declared a winner. It was a erasure, a tiny, brutal revision of their family story.

Tom looked from his mother’s open, smiling face to Mark’s. Mark’s easy grin had tightened slightly at the edges. He gave a small, almost imperceptible shrug, an apology and a challenge all at once.

Tom made himself smile. It felt like cracking plaster. “High praise,” he said, and shoved a too-big bite into his mouth. The pancake was perfect. Fluffy, buttery, sweet. It tasted like betrayal.

“So,” Tom said, swallowing past the lump. “You guys just… having a late breakfast?”

“Mark stayed over,” Lily said, and the simplicity of it, the lack of any further explanation, was the most shocking part. She said it like it was normal. Like he’d stayed over to work on a group project. “We watched that terrible asteroid movie. Fell asleep on the couch.”

“It was so bad,” Mark added, standing up to take his plate to the sink. He moved through the kitchen like he knew where everything was. He did know. He’d been in this house a hundred times. Just never like this. Never at this hour, with sleep-tousled hair and a proprietary ease.

Tom watched as Mark rinsed his plate and placed it in the dishwasher. He watched his mom watch Mark, a softness in her eyes he hadn’t seen directed at anyone in a long time. The silence stretched, filled only with the hum of the refrigerator and the distant roar of a lawnmower next door.

This was the new shape of his world. Not a dramatic explosion, but a quiet, seismic shift in the kitchen on a Sunday morning. The facts reassembled in his mind, cold and hard. His father was in a condo downtown. His mother was in her forties, wearing his sweatshirt, laughing in the soft morning light. His best friend was here, in his father’s empty space, making superior pancakes.

Tom finished his coffee, the mug suddenly heavy in his hand. “Gotta hit the books,” he said, his voice sounding distant even to himself. “Algorithms midterm.”

“On a Sunday? Give yourself a break, honey,” Lily said.

“Can’t. The data structures won’t sort themselves.”

He took his plate to the sink, careful not to brush against Mark. He needed air that wasn’t thick with syrup and shared secrets. He needed his room, his computer, a reality he could still control with lines of clean, logical code.

As he left the kitchen, he heard the low murmur of their voices start up again, a private continuum he had interrupted. He didn’t look back. The image was already burned into his mind: the two of them, close and comfortable, with the ghost of his father and the wreckage of his own comfort sitting like a third, uninvited guest at the chipped laminate table.

He climbed the stairs to his room, each step a conscious effort. The code on his screen was a refuge, a world of pure cause and effect. He typed furiously, trying to lose himself in the logic, but his mind kept replaying the thumb on her lip, the easy laugh, the casual "stayed over."

A soft knock came an hour later. Not his mom’s quick rap, but Mark’s hesitant one. "Hey. Can I come in?"

Tom stared at the door. "It’s your house too, apparently."

Mark entered, closing the door behind him. He stood awkwardly, running a hand through his hair. "Look, man..."

"Don’t." Tom swiveled his chair. "Just don’t give me the speech. I saw it. I get it."

"Do you?" Mark’s voice was low. "Because you’re my best friend. That hasn’t changed."

"Everything’s changed!" The words burst out, sharp and too loud. "You’re in my kitchen on a Sunday morning. You’re making her laugh like that. You wiped syrup off her face." He heard the petulance in his own voice and hated it.

Mark didn’t flinch. "I know. It’s weird. It’s weird for me, too." He took a breath. "But she’s... she’s amazing. And she’s happy. Aren’t you, I don’t know, even a little bit glad for that?"

Tom wanted to stay angry. He wanted to cling to the betrayal, the perfect, righteous knot of it in his chest. He looked at Mark—his friend, who’d driven him to the ER at 3 AM after a skateboarding disaster, who’d failed his own calculus test once just to keep him company while he retook his. He saw the genuine anxiety in his eyes.

He thought of his mom’s laugh. The real one. He hadn’t realized how much he’d missed that sound until he heard it again this morning.

The fight drained out of him, leaving behind a dull, complicated ache. It wasn’t acceptance, not yet. But it was a cease-fire. "Just... don’t be a dick about it, okay?" Tom finally said, his voice rough. "If you hurt her, I’ll have to kill you. And I’d really hate to ruin our friendship over your corpse."

A slow, relieved grin spread across Mark’s face. "Noted."

"Now get out. I have to fail this midterm on my own."

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