He Wrote It First
Copyright© 2026 by DogsofWar
Chapter 1: Mostly
Erotica Sex Story: Chapter 1: Mostly - Mark's been secretly writing erotic stories about his wife Sarah for two years. When she finds them, she doesn't confront him — she starts living them.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa mt/Fa Fa/Fa Fa/ft Consensual Lesbian Heterosexual True Story Cheating Cuckold Slut Wife Swinging Interracial Anal Sex Cream Pie First Oral Sex Voyeurism Teacher/Student AI Generated
To everyone who knew them, Mark and Sarah had gotten marriage right. Six years together. Four of them married. Good careers. A comfortable home. Friends they could count on. Sunday mornings at church and quiet evenings together when the rest of the world seemed content to leave them alone. And, if everything went according to the plans they had been making for the past three months, perhaps a baby sometime soon. Mark sometimes wondered how he’d gotten so lucky.
At thirty, he wasn’t the kind of man who drew much attention when he walked into a room. He stood five-foot-nine, with a compact build, short brown hair that never completely surrendered the slight wave in it, and warm brown eyes. Years of police work had given him a certain alertness even when he was relaxed, as though some part of him was always paying attention to the nearest doorway or listening for the change in someone’s voice that everyone else missed.
Sarah was different. People noticed Sarah. Mark certainly had. He had been twenty-four when he met her. Sarah had been twenty-two, and even six years later he could remember the first time she’d smiled at him. Her auburn hair was shorter now, cut into a blunt bob that ended at her chin and framed a face dominated by green eyes, high cheekbones, and a gently rounded chin. She had the kind of curvaceous figure that could attract attention despite the conservative way she normally dressed, although Sarah seemed either oblivious to the looks or determined not to acknowledge them. Mark noticed them. He’d always noticed. He also noticed the little things most people didn’t—the way she pushed her hair behind one ear when she was concentrating, the way her green eyes narrowed when she suspected someone was teasing her, and the tiny crease that appeared between her eyebrows whenever she was grading a particularly bad student essay.
That crease was there now. “Absolutely not.” Mark looked across the kitchen table at her. “What?” Sarah lowered the paper she had been reading and stared at him over the top of it. “The Roman Empire did not fall because everyone got lazy.” Mark took another sip of coffee. “I didn’t say it did.” “My student did.” “Oh.” She looked back at the paper. Mark waited. Three seconds later, Sarah shook her head. “Apparently they also had too many parties.” Mark laughed. “Don’t encourage him.” “I’m not encouraging him. I’m starting to like his theory.”
That earned him the look. It was Sunday afternoon, and Sarah had changed out of the dress she’d worn to church and into jeans and a loose Northwood High sweatshirt. Her manicured fingers held a red pen over the essay spread across the kitchen table. She had been teaching history at Northwood for five years, and somehow she still attacked a stack of student papers as though each one personally mattered. That was Sarah. Proper. Reserved. Organized almost to a fault. The teacher who stayed after school for a struggling student. The woman who remembered birthdays without needing reminders on her phone. The choir member who occupied the same place every Sunday morning and somehow still got nervous before singing in front of people.
Mark loved that about her. He loved almost everything about her.
“Listen to this one.” Sarah cleared her throat dramatically. “‘The Romans were invaded by several barbarian tribes because Rome had become weak and—’” She stopped. Mark waited. “And?” Sarah frowned at the paper. “What?” “You stopped reading.” “I’m trying to figure out whether that says Visigoths or Vicious Goths.” Mark nearly choked on his coffee. Sarah tried not to laugh. She failed. For the next several seconds, neither of them said anything useful. It was one of those stupid little moments that Mark wished he could somehow preserve. Nothing important was happening. Nothing they would remember on an anniversary twenty years from now. Just Sarah laughing at the kitchen table on a Sunday afternoon. Their kitchen. Their house. Their life. He liked that life.
Their one-story home on Maple Street wasn’t extravagant, but it was theirs. Sarah had transformed the place slowly after they married—warm colors, old quilts, photographs from trips they’d taken together. Outside, she maintained a small garden that Mark occasionally helped with and mostly tried not to destroy. The basement belonged more to him, especially during football season, although Sarah would dispute that characterization whenever friends were over. The covered deck out back belonged to both of them. Especially the hot tub. Mark had surprised her with it for their second anniversary, and some of their best conversations had happened there late at night with the jets running and the rest of the neighborhood quiet.
Lately, those conversations had changed. For three months, one subject had kept returning. A baby. At first it had been hypothetical. Do you think we’ll ever have kids? Then hypothetical became someday. Someday became maybe soon. And lately, maybe soon had begun sounding suspiciously like now.
Sarah set the essay aside. “I was thinking about Emma again.” Mark smiled. They’d somehow gone from discussing whether they wanted a child to debating names for a child who didn’t exist. “You really like Emma.” “I do.” “What if it’s a boy?” “Then we probably shouldn’t name him Emma.” Mark stared at her. Sarah smiled innocently. “Thank you, Mrs. History Teacher.” “You’re welcome, Officer Smartass.” He laughed. Sarah picked up another paper, but Mark noticed she wasn’t reading it. “What?” “Nothing.” “Sarah.” She looked at him. There was something different in her expression now. “Do you think we’re ready?”