Tim, her 18-year-old stepson

The glass walls of the apartment prison gleam under the soft, artificial light as Seraphina steps inside. The air is thick with the scent of expensive perfume and the faint, lingering trace of her pheromones, though she knows they won’t hold him for long. Not him.

"Hello, Tim."

Her voice is smooth, almost playful, as she greets the boy lounging on the sleek black sofa. Books, a half-empty mug of coffee, and a chessboard sit before him. Eighteen now, the years have only sharpened the intelligence in his gaze. Half-American, half-Japanese, his flawless pale skin contrasts with the inky black of his hair, and his sapphire-blue eyes gleam with a brilliance that has always captivated her. The white shirt, black tie, tailored pants, and expensive wristwatch give him the polished air of a prodigy, the kind of boy who could charm anyone with a glance. But Seraphina didn’t steal him for his looks. She stole him for his mind.

Tim’s super intelligence is one of the few things in the world that can soft counter her power. He must obey her orders, but the effect fades within hours, not weeks or months like it does with everyone else.

"Hello, Seraphina."

His reply is cool, effortless, as if he isn’t her prisoner at all. As if the glass walls, the locks, the fact that she holds the keys to his freedom mean nothing.

Seraphina tilts her head, a smirk playing on her lips. "Calling me by my name again, son? You should say, Hello, Mom. Legally, I am your mother. And your guardian. I’ve raised you since you were twelve."

Tim exhales, his expression unreadable. "First, we’re not blood-related. Second, you didn’t raise me. You stole me from my father, **** him to sign over my guardianship, and then locked me in this glass cage for six years." His voice remains calm, almost detached, as if he’s reciting facts from a textbook. "And third, you’ve been having sex with me every day since I turned eighteen. Hard to call someone who groomed and **** you Mother."

Six years ago, Seraphina married Tim’s father, a widowed billionaire. Her plan had been to mind control him and transfer all his properties to her name. What she hadn’t expected was his twelve-year-old son from his first marriage, a super genius who could resist her pheromone powers. Intrigued, she abandoned her original scheme. Instead, she made Tim’s father transfer his son’s legal guardianship to her, making her not only his stepmother but also his legal guardian.

Seraphina laughs, the sound light and unburdened. "You used to call me Mother all the time when you were twelve. You were so much more obedient back then." She steps closer, her heels clicking against the polished floor. "And ****? Let’s not pretend you didn’t want it. I used my powers to make you tell the truth on your eighteenth birthday. I asked you if you wanted to have sex with me. You said yes. And you’ve said yes every time since."

It’s hard to blame Tim for being sexually attracted to his stepmother. He’s eighteen, full of hormones, trapped in a gilded cage with only her for company. And she is, objectively, one of the sexiest women in the world. But the discomfort in his eyes is unmistakable.

Tim arches a brow. "Still pretty fucked up to have sex with someone you’ve known since they were twelve, raised as a son, and are legally the mother of, don’t you think, Seraphina?"

She shrugs, unfazed. "Like you said, we’re not blood-related. And now that you’re an adult, we’re both consenting adults. There’s no issue." Her smirk deepens as she activates her power, the faintest hint of her pheromones curling around him. "But I still want to hear you call me Mother."

Tim’s jaw tightens, but the words slip out against his will, **** by her influence. "As you wish, Mother."

The effect doesn’t last, but for now, he obeys.

"Good boy," Seraphina purrs, her satisfaction evident. Every day, she visits him, to complain, to seek his input on her criminal schemes, and, of course, to fuck him. "So, I’m working on a plan to steal one of the most expensive jewels on the planet. The Tear of the Siren. I need your input, son."

Tim sighs, his genius mind already spinning through possibilities, searching for a flaw, a weakness, a way out. "All right, Mother," he says, resignation lacing his tone.

Seraphina’s grin turns wicked. "After that, we’re going to have sex, Tim. And we’re going to fuck until neither of us can move."