Fomo
Copyright© 2026 by Big Ed Magusson
Chapter 29
Incest Sex Story: Chapter 29 - They’re afraid of missing out… maybe Mom can help. Finn and MacKenzie have been together since they were thirteen. They both wonder what it’d be like to be with other people but they don’t want to damage their relationship. Maybe Mom has some advice… A taboo novel about creative ways to avoid the Fear Of Missing Out.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Incest Mother Daughter
Finn and MacKenzie lay on her bed and listened. They heard someone come into the house but no voices. Finn strained to be sure. If Jenny had someone with her, they were very quiet. Then after about five minutes, they heard one set of footsteps coming down the hall.
Jenny peeked in the ajar door. When she saw them, she smiled and pushed it all the way open.
“Did I catch you at a bad time?” she asked.
“Oh, no,” MacKenzie said. Neither she nor Finn made any attempt to cover up.
“How was your date?” Finn asked.
Jenny sighed. “Good ... and then bad.”
“Want to talk about it?” MacKenzie asked.
“Mmm. Yes. But I need some wine first.”
Finn nodded. “We’ll meet you in the kitchen.”
She nodded and left. Finn and MacKenzie threw on robes and then caught up with her. She’d already gotten out three glasses and was opening a bottle when they arrived. She poured them glasses and gestured at the table. After they’d sat, she took a long drink and then paused to collect her thoughts.
“So...,” she said. “Kevin. He called around noon and suggested dinner. I met him at this nice Italian place. We had a good time ... until he got a call from his wife.”
His wife!” MacKenzie exclaimed.
“Mmm hmm. He said they were separated, but I knew he was lying. So ... after dinner, I came home.”
“Sorry about that,” Finn said.
Jenny shrugged. “Better to find out now than later.”
“That’s for sure,” he muttered before sipping his own wine.
“So how did the street fair go?” Jenny asked.
“Good, great, then bad,” Finn said.
“Yeah,” MacKenzie agreed.
They filled her in on the fair and going to Hailey’s house and then on the skinny dipping. Jenny asked a few questions about how private the pool was and seemed satisfied with their answers. Her eyebrows rose when they got to the part about Hailey blowing Eli on the side of the pool.
“And you were okay with that?”
Finn sighed. “You know my biggest fantasy is two women at once. And, well ... if you actually started dating...” He smiled apologetically.
“That’s okay. I have encouraged you to look for people your own age.”
“And we thought it might work,” MacKenzie said. “Hailey’s very open-minded.”
“And then what?” Jenny asked.
“One of Finn’s biggest fantasies,” MacKenzie said with a grin. “But then ... Eli ruined it.”
Finn quickly explained what Eli had done.
“I’m surprised you didn’t deck him,” Jenny said to Finn.
“I wanted to,” he admitted, “but Hailey took charge.”
MacKenzie quickly explained how the rest of the afternoon had gone. In the end, Jenny was nodding.
“I think I want to meet Hailey,” she said. “She sounds like she’s got her head screwed on right.”
“We’ll see,” Finn said. “A lot could happen between now and Christmas break.”
“True.” Jenny nodded firmly and then took another sip of wine. “And college will change things, too.”
“Hopefully not the big things.” Finn reached across the table and took MacKenzie’s hand.
Jenny smiled. “I don’t see anything coming between you two.”
“Mmm hmm,” MacKenzie said. “We only came up with one thing.”
“Oh?” Jenny asked.
“Yeah,” Finn answered. He exchanged an amused smile with MacKenzie. “Our desire to experience sex with other people.”
“Other women,” MacKenzie corrected. “I don’t want someone like Eli.”
“God, no,” Jenny said with a look of disgust.
“Yeah,” Finn said. “And Hailey ... she might work. I don’t know if she’d try to come between us or not.”
Jenny chuckled. Then she paused in thought, before sipping some wine. Finn and MacKenzie waited until she set her glass down.
“Well,” she said, “let’s address the elephant in the room. You want to do it all with another woman. We’ve already crossed some lines. So ... let’s do it.”
“It?” Finn’s pulse went from 30 to 90 in two seconds.
She grinned and her eyes flicked from him to MacKenzie and back again. “Full sex. No limits. All three of us.”
“Really??” MacKenzie almost bounced out of her seat in excitement.
Jenny laughed. “Hold your horses! Not now.”
“No,” Finn agreed.
“So when?” MacKenzie asked.
“How about next weekend?” Jenny answered. “I’ll ask Finn’s parents to let him spend the night and we make it a real date. Like when we went to the theater.”
MacKenzie’s smile threatened to break her face. Even Finn got caught up in her euphoria.
He turned to Jenny. “Let’s do it.”
The following week was the longest of Finn’s life. Not because anything bad happened, but because time seemed to move so slowly. He spent more time with his own family that week simply so that he wouldn’t be tempted to suggest they not wait until Saturday. He didn’t want to wait, but he trusted it’d be better if they did.
Besides, since it was Jenny’s plan, she was less likely to change her mind.
His shifts at the pool were equally tedious. He kept waiting for Eli to show up, or maybe Hailey, but neither did. That didn’t prevent him from scanning the crowd as much as the pool.
He and MacKenzie had sex several times during the week, but Jenny didn’t join them. She was home a couple of times, but she didn’t appear at the open door. MacKenzie wanted to say something to her—invite her in—but Finn quashed it. He didn’t want to do anything that would discourage her from her plans for Saturday. He reminded her that her mom had said, “no limits.” One evening they started talking about what that might include while MacKenzie rode him. She came hard when he suggested that she’d get to lick her mother’s pussy.
Then, finally, finally, finally, it was Saturday night.
Finn arrived at MacKenzie and Jenny’s house in his suit. Underneath, he wore a pair of the sexy underwear they’d bought him. The day had been scorching hot and he was mildly worried he’d sweat a lot and mess everything up, but hopefully they’d be mostly in air conditioning.
He rang the doorbell and waited. When no one showed up, he let himself in. He called out in the hallway to let him know he was there.
“Hey, Finn,” Jenny yelled back. “Wait in the family room, please!”
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