Fomo
Copyright© 2026 by Big Ed Magusson
Chapter 12
Incest Sex Story: Chapter 12 - 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 cuddled in the afterglow as they both caught their breaths. He watched the doorway, but Ms. O’Connell didn’t reappear. MacKenzie lightly stroked his chest until he turned and kissed her on the forehead.
“You were on fire,” he murmured.
She tilted her head so she could smile at him. Her eyes twinkled.
“You too.”
“Yeah.” He sighed happily. “That was ... really good.”
“Mmm hmm.” She lowered her head back to his shoulder.
“And ... uh ... your mom watching...” He swallowed, suddenly a bit nervous. “That made it really hot.”
MacKenzie paused, her hand on his chest. But she didn’t tense. More like she was thinking.
“It was,” he said.
“Mmm ... yeah...”
“Really hot.”
“It’s ... just a little weird that it’s my mom, you know?”
“Yeah. Is that a problem?”
“Mmm...”
“It is kinky.”
She chuckled. “Yeah.”
“Which makes it hot. Really hot!”
She chuckled again.
“She just couldn’t stop looking at you. Now or earlier.”
“Earlier?”
“When you took your g-string off.”
“You liked that?”
“We both did.” He rubbed her shoulder. “I wanted to take you right then, right there, in front of your mom. I almost did.”
MacKenzie lifted her head again, but this time her eyes smoldered. She shifted up and pursed her lips. He kissed her, and she returned the kiss hungrily. When they broke apart, he playfully leered.
“You would’ve liked that?”
She nodded before kissing him again. Then her hand slid down to his stiffening cock.
“Round two?” he murmured.
She nodded enthusiastically.
“Okay. But me on top.”
She quickly rolled to her back.
After a few more kisses, he moved on top of her. She helped line him up, and he quickly slid in. The sex wasn’t as urgent as the first round, but the way MacKenzie pushed back against him while running her hands down his back made it clear what she wanted. Finn settled into the pace she loved and kissed her.
They moved together in a familiar rhythm until MacKenzie shuddered and gasped and came. Finn thrust a bit faster until he, too, went over the edge. He came with a groan before collapsing on top of her. They kissed one more time before he pulled out and laid down by her side.
“That was good,” he said once he’d recovered his breath.
“Mmm ... not as good as with Mom watching.”
He chuckled. “Well ... next time, let’s invite her to watch up close.”
MacKenzie shivered with pleasure.
They didn’t go for Round Three. MacKenzie was sleepy after their second round so Finn cuddled her until she dozed off. Then he gently extricated himself, dressed, and made his way out. Ms. O’Connell’s door was closed and the room dark. He wasn’t sure if he was relieved or not.
He walked home wondering about what had happened. Did they want to call her on it, or just let her continue to surreptitiously watch?
That was the wrong question. He knew what they wanted. The real question was, would she freak out if they did call her on it?
He spent some time mulling that over. It was late enough that he didn’t have to interrupt his thoughts to talk to his parents as they’d gone to bed, so he continued to muse about how to raise the subject with Ms. O’Connell.
He was almost asleep when he figured it out.
Finn spent most of the day with his family and headed over to MacKenzie’s just before dinner. Ms. O’Connell had just arrived home but hadn’t started cooking. He volunteered to have him and MacKenzie do it while she relaxed and Ms. O’Connell quickly took them up on it. She sat in the living room drinking an Old Fashioned while MacKenzie made a salad and Finn sautéed the chicken. He quickly briefed her on his plan. She smiled when she got the gist of it.
Finn waited until all three had settled at the table and begun to eat.
“So,” he said to Ms. O’Connell, “Mac and I have been thinking about what you said the other night.”
“Which night?” she replied.
“After Graduation. About, um, playing with other people.”
She nodded. “When things didn’t work out with Eli and Megan.”
“You, um, advised us to be careful about that. Playing with other people.”
“Mmm hmm.”
“So, um, how would you go about it?”
She blinked and then her eyes widened. “You’re asking my advice?”
“Yeah,” MacKenzie said.
“We’re sure nothing like what happened with you and Mac’s dad will happen,” Finn said. “But ... you’ve probably thought about it a lot more than we have.”
“I’m sure you have,” MacKenzie added. “You always think things through.”
Ms. O’Connell snorted. “Not always ahead of time.”
Finn shrugged agreement. ‘But still. You have thought things through.”
“That’s true.” She paused in thought.
Finn shared a smile with MacKenzie. Her mom wasn’t mad at the advice request.
“You sure you want to do this?” Ms. O’Connell asked.
“So much,” MacKenzie said.
“Oh?”
“Really badly, Mom. I ... I wanna know ... I’ve had all these thoughts...”
Ms. O’Connell smiled. “I know what it’s like.”
“And you know what it’s like to be with more than one partner,” Finn added.
Ms. O’Connell turned and gave him an amused look. “True.”
“So ... we’d love your advice.”
“Well...” she began, but then fell quiet again. They ate a few bites while she gathered her thoughts. Finn did his best to not get nervous.
“I think...,” she eventually began, “first you two have to be on the same page about what you want.”
“We are,” Finn said, and MacKenzie nodded.
“And you have to stay on the same page. Which means a lot of communication. Good communication.”
More nods of agreement.
“Then you need to be very careful of who you pick as your other people.”
“Or person,” Finn said.
“Oh?”
“Yeah.” He shared a look with MacKenzie before focusing back on Ms. O’Connell. “We’ve talked about it, and if we found the right woman...”
“That makes sense.”
“We just don’t know where to look,” Finn concluded.
“Well ... hmm...” Ms. O’Connell pursed her lips and thought. “That could be difficult.”
“Yeah. We want someone who’s bi and attractive and finds both of us attractive, but not going to come between us.”
Ms. O’Connell chuckled darkly. “Mmm hmm. That last one is important.”
“So what else should we be looking for?” Finn asked.
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