Fomo
Copyright© 2026 by Big Ed Magusson
Chapter 10
Incest Sex Story: Chapter 10 - 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
After they’d gotten out of the hot tub, Finn and MacKenzie quietly entered the house. Almost all the lights were off, which led Finn to wonder if Ms. O’Connell had gone to bed. However, some light seeped out from under her bedroom door, so she likely wasn’t asleep. As they silently padded by it on the way to MacKenzie’s room, he paused. MacKenzie did too, raising an eyebrow in question.
He put a finger to his lips and she nodded. Then they listened.
If they were quiet, they could make out a low buzz on the other side of the door. Then—yes, whimpers of pleasure.
Finn’s cock stirred as his imagination raced.
After a bit, MacKenzie lightly touched his arm. She smiled and tilted her head toward her bedroom. He nodded and followed. Once they were inside the bedroom, he pulled her into his arms and kissed her. She passionately returned it.
One kiss led to another. Their towels fell to the floor and MacKenzie tugged at his swimming trunks. Finn helped her pull them off, which was harder than he’d expected because of how stiff his cock was.
She sank to her knees and started sucking him. He groaned as her hot, wet mouth surrounded the crown of his dick.
He gasped and let her suck for a moment. Then her urged her up and toward the bed. She shed her own suit before stretching out on her back and spreading her thighs in invitation.
“Tongue or cock?” he asked.
“Cock.”
He climbed on top of her. She lined him up, and he slid home.
Finn gasped. She was hot and wet and already urging him on. He didn’t want to come fast, so he buried his face in the crook of her neck and started thinking about multiplication tables.
MacKenzie wrapped her arms and legs around him and urged him on. He pounded her until she cried out and went stiff. As she shook, he held still. She shook and her pussy clamped down on him as she came.
He lifted his head up so they could look into each other’s eyes. He smiled.
“Your turn?” she asked.
“I want you on top.”
She nodded and they switched positions. She straddled him and he sucked in his breath as she lowered herself down onto his cock. He held her hips and leered at her.
“You like?” She began caressing her breasts as she ground against him.
“Tell me about your mom’s toys.” He matched her rhythm as they slowly screwed.
“Mmm ... well, she has two. One of those big magic wand vibrators and a fat dildo.”
“Did you use both?”
“Mmm hmm.”
“Did you like them?”
She smirked. “The vibrator’s intense.”
“Did you come?”
She nodded. “Several times.”
“What about the dildo?”
“I used it.”
“Did you like it?”
She shrugged and leaned forward enough to deepen his penetration. She leered at him. “It’s not as good as this.”
She squeezed her cunt around him, causing him to gasp.
She chuckled.
“The real thing’s so much better,” she said.
“But I wasn’t around.”
She shook her head and returned to grinding on him, rubbing her clit against him.
“Did you use it more than once?”
“Yeah...”
“Did you come?”
She shook her head. “Not with the dildo.”
“Does your mom?”
“I don’t know.” She sat back and started raising and lowering herself while he held her hips. She moistened her lips and grinned. “I know she uses it.”
“Oh?”
“Yeah. It ... uh ... moves around in her drawer.”
He chuckled. “Just how often are you poking around in there?”
Her eyes went wide with mock innocence. “Only when I can’t have this.” She squeezed her pussy on him again.
He gasped again and then retaliated by thrusting hard, which caused her to moan.
“Tell me more,” he said.
“What?” She said with amusement. “You want to hear how I used her vibrator to come and come and come?”
“Yeah,” he chuckled. “But also about the dildo.”
“The dildo, huh.”
“Yeah ... you realize that it’s been inside both of you, right?”
MacKenzie’s eyes went wide.
“And the vibrator’s touched both of your clits.”
MacKenzie shuddered, but then took a deep breath and caught herself. Her eyes brimmed with desire.
“Does that turn you on?” she asked huskily.
He nodded as his pulse began to race.
“Mom’s pussy ... my pussy ... sharing...”
And his arousal went to eleven. He panted for breath.
“Maybe we should share you.”
With a groan, he exploded. The waves of pleasure raced through him as he shook and emptied himself. He moaned and twitched. MacKenzie leaned forward and held him until he’d finally finished. Then she lay on his chest and kissed him.
“That,” she said quietly, “was hot.”
He laughed and held her close.
Once again, Finn had to shake himself awake and slip out of the bedroom while MacKenzie still slept. It kind of sucked that he wasn’t allowed to spend the night. Other than Prom, which had been a special exception, his father had made clear. On the other hand, his parents were pretty forgiving about how much time he did spend at MacKenzie’s house, so he wasn’t going to complain. Besides, with school out he’d have even more time to be with her.
Well, he did have that pesky summer job at the pool, but that would still leave him with plenty of time. In fact, he didn’t work tomorrow. He and MacKenzie could have the entire day together and the house to themselves once Ms. O’Connell left for work.
Which meant, he realized, they could borrow her toys.
His gut twinged with guilt at the thought. He’d been brought up that you never borrowed someone’s things without asking permission. And there was no way they were going to ask. Ms. O’Connell would be furious if she caught them.
He definitely didn’t want that.
What did he want?
MacKenzie’s line came back to him—what if she and Ms. O’Connell shared him?
Despite having come three times with MacKenzie, his cock hardened at the thought of the two of them giving him a double blowjob. That would be the ultimate fantasy fulfillment.
He let himself out of MacKenzie’s house with one last thought:
Could they make it happen?
Finn spent the morning with his family before heading over to MacKenzie’s after lunch. She greeted him with a big hug and kiss at the door. When they pulled apart she grinned at him.
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