Grandpa Was Right - Cover

Grandpa Was Right

Copyright© 2021 by Lubrican

Chapter 3

Incest Sex Story: Chapter 3 - We sometimes dismiss "the wisdom of the elders". An example are old wives tales. But sometimes they get it right. That's what this story is about. Grandpa thought certain things should be taught at home, rather than school. He felt like parents could do a much better job.

Caution: This Incest Sex Story contains strong sexual content, including Ma/ft   Consensual   Reluctant   Fiction   Incest   Father   Daughter   First   Masturbation   Pregnancy  

Bob was still trying to wrap his head around the information that Julie’s father had done all the things with her, when she was fourteen, that he had just done with Beth.

Beth’s casual, “Yes, Daddy. Grandpa had sex with mom from when she was fourteen until she went to college.”

“But I met her in college and she told me she was a virgin!” he objected.

“She was... kind of. She felt like she was. She had only ever had sex with Grandpa, and not with any boys she knew. She felt the same way about all this that I do. Grandpa was her teacher and he took care of her needs until she was ready to meet you.”

“But she told me she was a virgin,” he complained.

“Think about it, Daddy. If she’d told you she had experience and where she got it, would you have been all happy about it?”

“Of course not,” he said.

“Which is why she didn’t tell you. She already knew you were her soul mate, and she didn’t want to mess things up.”

“But if he was having sex with her all those years, why didn’t she get pregnant?” moaned Bob.

“She was on the pill, Dad, duh,” said Beth.

“Are you on the pill, then?” he asked.

“Well, not yet,” she said. “ I told her I didn’t want to have actual sex, yet. She said that would change, but we didn’t have time to go to the doctor before she left, but when she gets back she’s going to take me to the doctor and get me on it.”

“So we just had unprotected sex,” he growled.

“Well, yes, but just that one time.”

“So now that your questions have all been answered you’re going to leave me alone for the two weeks she’s going to be gone,” he said.

Beth frowned.

“I don’t think so,” she said. “That was pretty awesome. I understand completely why Mom did it with Grandpa all those years.”

“We can’t just have sex all the time while your mother is gone,” he groaned.

“Why not? I love doing it. I’m still surprised it fit, but I loved doing it.”

“And when she gets back?”

“She said she’d share you, as long as I don’t get greedy.”

“I don’t believe this,” he sighed.

“Mom said you might get freaked out. That’s why I was sure she’d talk to you before she left.”

“She knew I’d never go along with it,” he said.

“You were kind of difficult,” said Beth.

“I should have been more difficult,” he barked.

“I think Grandpa was right,” she said, running her fingers through his chest hair. “I think sex education should be done at home.”


She gave him some room to process it all. In her mind everything was dandy, but she knew he was having a hard time with it. So she went about her day as if nothing had happened and let him sulk.

As for Bob, things that had confused him in the past became clear, now. Julie had assured him she was a virgin, the first time they made love. He’d had sex with only one other girl before her, and Julie’s acceptance of that kind of attention from him, and the skill with which she’d enjoyed their joining had seemed odd, somehow. She knew what she wanted and taught him how to give it to her. They’d had - and still had - a wonderful, full and satisfying sex life.

Now he knew she was supremely experienced in lovemaking when she met him. He wondered if, after they got married, she’d still slept with her father. He wasn’t sure he wanted to know.

That made him think about Beth. She was ready to be his part-time lover and displayed no reservations about it at all. He had a brief fantasy in which he could make love to both Julie and Beth, maybe even together, and for the next four years until Beth went off to college and found the man she’d marry. Would he want to keep fucking her after she got married?

His fantasy evaporated. What was important was the next four years. What was he going to do about that?

He wandered around the house as he ruminated on it all. Beth was running the vacuum cleaner at one point and he just watched her doing that chore. She was healthy, beautiful, sexy without trying to be sexy. He realized he’d noticed her sexuality before this. But he’d always pushed those thoughts away.

Now he didn’t have to.

Her ponytail swished as she worked and her nipples imprinted on the crop top she’d put back on. Her hips swayed inside the terrycloth shorts she’d put on.

He realized he had a magnificent erection and looked down to see the front of his shorts tented out.

She glanced at him and smiled. But that’s all she did.

They had lunch separately and she said she was going over to Sandra’s house.

While he was alone he stroked his bone slowly.

He wanted to cum.

The problem was ... he wanted to cum in his daughter.


Beth didn’t get home until after he’d eaten his supper. She went straight to her room. Just seeing her made him stiff again.

He decided to go swimming and, by habit, went in nude.

When she joined him, she modeled her new “bathing suit,” which was so tiny it was obvious it wasn’t actually for swimming.

“I got this to tease you with,” she said, twirling. Then she dropped the scraps of cloth on the deck and walked down the steps of the pool naked. “But I don’t need to tease you anymore.”

He sighed.

Without a word she swam up to him and hugged him.

One kiss was all it took and he helped her maneuver in the water until his prick was prodding her pussy.

The water made it too difficult to actually get in her, but she didn’t seem to care. She just kept kissing him, and gripping his penis like it was a dildo, using it to stroke and inflame her clit.

When he said it was bedtime and got out, she dried him off. She sucked him only briefly, and then led him to his bed.

When she got in and patted the bed beside her, he sighed.

Twenty minutes later she was pinned to the bed as he lunged into her, long-dicking her until she had a string of orgasms.

This time when he felt the urge to spew, he went in deep and bred her on purpose.


When she awoke the next morning, in bed with her naked father, her pussy was a little sore. It wasn’t enough to make her wince, or even walk strangely, but her body announced that it needed a little time to recuperate before she hit the gas again. She sat up and the sheet she’d pulled over herself (and him) fell to expose both of them. He was asleep, but had an erection. She didn’t know about morning wood, yet, and so assumed that men could be ready for sex even though they were unconscious.

She got out of bed and stared down at her father. He rolled, sighing softly and his penis disappeared under one hip as his knee bent and took up some of his body weight.

Her fingers went to her sex and found a gelatinous mess in her hair. She probed gently with about half of her middle finger and confirmed the mild soreness where his big penis had slammed into her over and over again. They were in his room, so she went to the master bathroom. She closed the door not out of some wish for privacy, but to avoid waking up her father. A warm shower felt good and when she got out she felt like she could take on the world. She’d always been an early riser, like her mother, and she knew her father was the opposite kind of person. He was a night owl and liked to sleep in.

When she left the bathroom he was lying flat on his back with his feet a foot apart, snoring gently. She walked to the side of the bed and examined the long, hard, thick thing that sprouted from a nest of brown hair. She got to see his balls clearly for the first time. She’d seen them briefly in the pool, and felt them with her hand, cupping them briefly while she sucked the head of his penis, but she’d never looked closely at them. They looked a little like a thick-skinned balloon of some kind that most of the air had leaked out of. No, that wasn’t right. There were flat parts, but there were thick round parts, too. They definitely looked saggy, but her remembered view of them in the pool was of a more full, more rounded, more firm balloon. She suppressed a giggle, thinking about the difference between what a tire on a car looked like when things were normal, versus when that tire was flat.

Her stomach growled and she turned to go to the kitchen. She got a big bowl and filled it with Fruity Pebbles and milk, which she spilled a little of on the counter. She sat at the table, leaning forward with her knees spread wide and her naked butt cheeks sticking to the vinyl cover of the chair. She knew she should feel odd, sitting there, naked, eating cereal, but it didn’t feel odd at all. It felt invigorating. The freedom to be naked like this was intoxicating. She knew that they wouldn’t become sudden nudists, but she also knew that the days of being modest in front of her mother and father were gone forever. She hoped they wouldn’t be modest in front of her, either.

She thought about her conversation with her mother, in which her Mom had said, “Your father will answer all your questions. It may be a little tense, at first, but I’m sure he’ll come around. You just need to convince him that it’s important to you to satisfy your curiosity at home.”

“How do you know?” whined Beth. “What if he won’t?”

That had been when Beth found out what kind of sex education her mother had had at the hands of her grandpa.

To be honest, it had been a big relief to Julie when her teenage daughter started asking questions about intimacy and sex. Julie had known this time would come, but hadn’t been able to find a way to approach her husband to tell him things he didn’t know about her, and to suggest things he might be (would almost certainly be) horrified to do. Julie knew, in her heart of hearts, that teaching their daughter at home was vastly superior to making her blunder through the minefield that most virgins are required to navigate, but that didn’t mean Bob would understand.

On the other hand, she knew Bob recognized the budding sexuality in his daughter. If she could arrange for nature to take its course while she was away on her book tour, then this would be the perfect solution to a thorny “problem” she’d been worried about for some time, now.

That’s why she ended up saying, “Honey, I’m convinced your father will answer any question you have, and let you experiment with anything you feel you need to understand better, like my father did. Now. I have to pack. Go on. Go write down a list of your questions or something. Wait until he goes swimming at night and then go out there to join him. It will be easier to start this process in the dark.”

As Beth crunched her way through breakfast, she reflected on how things had gone. Her idea of going to the pool before her father got there had worked out perfectly. She’d been nervous to ask for that first thing - to see his manhood - but it had worked out. Of course things had gone waaaay beyond her original intent, but she wasn’t unhappy about that at all. When she’d found out that her mother and her grandpa had had sex, that blew her mind, but her mom seemed so normal now that it was obvious it hadn’t “fucked things up”, no pun involved. Beth wasn’t ready to put herself and her father on that same plane. The idea of actually having sex was still too foreign.

Until she’d felt her daddy’s thick cock rub against her pussy in the pool.

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