Natalie absolutely needed an A in her high school math class, so her step-father, Paul, spared no expense to achieve that, hiring a retired math teacher to tutor her. Today, Paul wanted to speak to the tutor about her progress, so he drove home earlier than usual to their farm a little outside of town. As he went to the second floor, he heard noises from Natalie's room. Confused and dismayed, he paused and listened.

Natalie was the daughter of his wife from her first marriage. His wife was of Korean descent, with a cute small body and a very sexy face with almond eyes. Her daughter had developed into the cutest teen imaginable. Her face and body were a perfect Western-Asian mix.

It sounded like sex, but it could also be suppressed cries of pain. Unsure what to do, he continued to listen. The math tutor was supposed to be there, but maybe he left earlier today, and Natalie had her boyfriend - if she had one - at home. He couldn't possibly burst into the room. Natalie would never forgive him for that.

But if it wasn't her boyfriend, and they were screams of pain, then he would never forgive himself for not intervening. He had an idea. Natalie's room faced northwest and had no blinds. If he climbed onto the garage, he could peek inside. Armed with a two-by-four to break the window if necessary, he climbed up. He looked carefully around the corner and what he saw was unexpected.

No, it wasn't her boyfriend who was with Natalie, but the math teacher. But neither was studying math. The noise had been, and still was, sounds of pleasure. Natalie with her petite 155 cm was on all fours on her bed, which was on the opposite side from the window against the wall. He saw her in profile. Naked. The teacher, also naked, pumped his prick into her pussy and held her narrow pelvis in position.

Why did she choose this position? Probably so that his beer belly wasn't in the way. Natalie moaned and her small tits jiggled with every push. Paul almost fell off the roof, but he collected himself quickly. He didn't have to see anything more. But he could not avert his eyes. They fucked in complete harmony. It was obviously fun for both, and Natalie was so provocatively cute. Just like the teens he saw in porn clips. After a few minutes, he was able to unglue his eyes and he climbed down. Too great was the danger that both of them would look at the window, perhaps when changing positions.

He wasn’t sure what to do, so he got into the car and drove aimlessly on the country roads, while his head was full of the pictures of his step-daughter and how her small body was dominated by the very massive teacher. A little earlier than his “normal” time, he drove up again and opened the door loudly. The house was quiet. The teacher was just coming down, Natalie behind him, the teacher in a suit and Natalie in jeans and a T-shirt. Nothing suggested that the two had fucked wildly an hour ago.

“It's good that you’re still here, Mr. Penner. Can we talk about Natalie?” said Paul. “Natalie, please, can you get dinner ready?” Natalie gave her step-dad a hug, as always, and ran light-footed into the kitchen. Paul showed the teacher to his study.

“First of all, I would like to know about Natalie's progress. Will she get the A grades?”

“The next four weeks she still has to study. But she's doing well.”

“I want you to stop tutoring.”

“How come? So close to the finish line now? There is still some material she needs to study to finish and meet her goals.”

“Well, you've already achieved a goal that she does well at!” said Paul indignantly.

“I don’t know what you mean.”

“Well, seducing my step-daughter and sleeping with her!”

“I beg your pardon?” asked Mr. Penner.

“Sleep, fuck, bang, shag. I don't know which word you understand, but you stop!”

“Ah, now I understand. Well, we are both grown up. Natalie is eighteen and can do what she wants. “

“But not in my house!”

After a few moments, Mr. Penner replied in a calm voice, “Would it be more desirable for you in the car or in the bushes? But who knows what could happen there.“

“Nothing is more desirable to me, Mr. Penner. That stops! And I also pay for it!”

“That’s not correct. You pay me for 90 minutes of tutoring. What Natalie and I do afterwards is our private business.“

Paul lost patience. “If you fuck her for free, you can give her free tutoring.”

“But that would make Natalie a prostitute,” said Mr. Penner in a dry tone.

“How is that?”

“Well, if Natalie paid for my tutoring service with her sex service, then that's prostitution. Do you want Natalie to be a whore?” He smiled mischievously.

“Why do mathematicians always have to be so logical?” Paul shouted. And when Mr. Penner had to smile, Paul also calmed down a bit.

“How do you know about us? Did Natalie tell you?”

“I got home a little earlier today to talk to you about Natalie, and then I heard groans from the room. I didn't know what was going on, but also didn't want to burst into Natalie and her boyfriend’s private time - so I thought. But to make sure it wasn't some burglar or such, I climbed onto the garage roof and saw you two. You were just doggy-fucking.”

Mr. Penner replied, “Do me a favor, please. Do it for Natalie's sake and don't confront her. It's poison before graduation. She has to concentrate now and can't stand anger - as I said, she is of legal age and can actually decide for herself, but a bad mood is definitely bad for school.“

Paul became thoughtful, and in the end, he nodded. “Okay, I agree, but only until graduation. Then I'll kick Natalie out. Then she can live with you, her lover.” And then he added, “Which of you started it?”

“Well, it just happened. I like teens, and Natalie someday confessed to me that she can't do anything with boys of her age and that she likes older men.“

“Perverse!”

“Well, there are worse things,” said Mr. Penner.

Paul held his head in both hands. Again, he had the picture of them both on the bed in his mind. “Do you at least use condoms?” Paul was getting used to the situation.

“Sure, of course. And Natalie also uses the pill for contraception. A condom can burst.“

Paul continued to nag. “But hopefully it's just sex and not love, isn't it?”

Mr. Penner had to laugh. “Nah, don't worry, your future son-in-law won't be older than you. Just sex. As I said, I love teens and your step-daughter is really a hottie.”

Paul paused for the longest time, his thoughts racing. “Then okay. And if you both have fun with it, and it's nothing serious, who am I to be against it?“

Paul thought about it. He recalled the picture of his teenage step-daughter and the man three times her age again. He sighed. “Since we know each other now in a kind of intimate way, I think we can call each other by first name then.”

Paul got up and held out his hand to Mr. Penner. “My name is Paul.”

“And I am Roger.”

Finally, Paul could relax a bit. “Roger, your cock looked really great the way it worked her pussy.” Paul got really horny because he couldn't forget the sight of a teen fucking, and that was also noticeable in his language.

“She has a great body and is full of energy. An old fart like me is pretty much pushed to my limits.” Roger laughed. “But that also means that you won't kick Natalie out after graduation, right?”

Paul replied, “No, I won't. It was just a first impulse. I love Natalie way too much for that. “

Roger had to laugh again. “Quite the caring father. I think that's really good of you. May I change to a different topic? When was the last time you fucked really wildly, if I may ask?“

“Yes, after the death of my wife, Natalie's mother, there was of course little going on. But then last year I dated again,” confessed Paul. He took a deep breath. “Each girl was about half my age.”

“Wow, do you think young girls are cool too?”

Paul just nodded.

“What if Natalie weren't your step-daughter?”

“Then I would have watched you even longer.” Something stirred in Paul's pants.

Just as he was about to answer, he heard Natalie call out from the kitchen, “How much longer do you need? The pasta is ready!”

“We’re coming!” Paul replied.

Roger said, “You should know something, Paul. When we fuck, Natalie sometimes says ‘Papa’ to me.”

Paul was completely taken aback. What did that mean? Both went to the hallway in silence. To sort his thoughts a little, Paul said he would go into the cellar and look for a bottle of wine. Then in the basement, he thought even more of Natalie. When she was fucking, she said his name!

Roger used the time that Paul was away to tell Natalie that her papa now knew everything. When Paul came back upstairs, he suggested that Roger stay for dinner. They didn't talk a lot while eating and the elephant in the room wasn't spoken about. Paul didn't even know that Roger had told Natalie everything. They talked about some unimportant stuff, but Natalie was very happy that Paul and Roger got along well.

Paul saw in the corner of his eye how Natalie and Roger gave each other meaningful looks, but not a word about the charged relationship and preferences of the three. But the wine had its effect and the conversation slowly became livelier. After dinner, they sat down in the living room and enjoyed the tiramisu, Paul on the couch, and Natalie and Roger in the two leather armchairs.

Natalie took a deep breath and finally said, “Thank you, papa, for not making a scene about Roger.” She looked very relieved to have said that.

Paul was taken aback, but Roger quickly added. “I just told her.”

“Well, you're grown up too. What should I say? But it was a shock for me.”

Natalie was relieved and sat down more relaxed. Paul couldn't help but look between her crotch in the tight jeans - and for Natalie and Roger, of course, that look wasn't hidden either - and added, “Well, I love you and only want the best for you.”

“How long have you been together?”

“Since we started tutoring,” said Roger.

“It was after the first lecture," Natalie specified.

“That went quickly!” exclaimed Paul.

“Well, I like teens, like I said, and one thing led to another.”

“And you, Natalie, don't you mind sleeping with an old man?” Paul laughed to defuse the question a bit.

“Well, boys are stupid,” confessed Natalie. “Awesome, but only want one thing. Get naked quickly, push dick in, ram a few minutes and after they cum they all run away quickly.”

Paul first had to swallow, because he had never heard such words from his step-daughter's mouth.

“Now it's getting embarrassing. I better go!” Roger joked, about to get up.

“You are welcome to stay.” Paul somehow had an idea how to proceed, and he needed Roger's support. “Is sex fun with him?” Paul asked straight away, taking advantage of the wine and the situation. He was slowly getting a stiff cock and changed his position a bit to relieve the pressure in his pants. Natalie and Roger noticed, and they looked at each other meaningfully.

“Yes, he's great in bed, and as a math teacher too!”

“What do you like about him?” Paul asked with a sideways glance at Roger.

“He's so affectionate, thinks of me more than him, and he can do so many different things.” Natalie blushed, but looked steadily at her papa.

Paul kept digging. “And since when have you been into older men?”

Natalie considered how she should answer, gave herself a push and breathed deeply in and out. “Since our San Diego trip. You know the shower in our apartment didn't have a curtain and I saw you naked.“

Paul remembered. “Yes. That was mega embarrassing how you got in, where I had just cleaned my cock. Because of the soap and my hand, it was pretty stiff.“

Roger now watched eagerly how the conversation would continue. He put his hand on his crotch.

Paul said. “You left quickly then, but you were embarrassed about the shower. Afterwards, you always had your back to the bathroom when you showered, right? But I've always watched you out of the corner of my eye,“ confessed Paul. “A beautiful back can delight.” He raved about it. “The way the water ran down your back was so sexy. And your bum!“ All three laughed. “And on the beach, I often had to hide my semi-hard prick from you.”

“Well, you haven't always succeeded, Papa. I saw the bulge in your swimming trunks, and also the way you always looked at me.“

“But you never said anything.”

“What should I say? ‘Papa, I want to go to bed with you,’ or what?“ said Natalie. “That's so perverse!”

“But fucking your math tutor isn't perverted?” countered Paul. He consciously chose the word “fuck” and not “go to bed” to irritate Natalie.

“Probably only half as perverse,” answered Natalie. She had her hand on the crotch and was breathing heavily. “And anyway, watching your step-daughter bang is really perverse.”

“But when you say ‘Papa’ during our fuck, it makes it a bit more perverse again,” Roger spoke up humorously. “Not that I have anything against it. I'm also an old perv.“

Everyone laughed. “Natalie, you are my sweetheart!“ Paul spread his arms and Natalie came over and snuggled up to her step-father. She wrapped her arms around his neck and kissed him on the cheek. Both smiled, but Roger also saw a certain tension. Paul put his arm around her and felt her very close to him. Something was stirring quite violently in his pants.

“Come on, what are you waiting for? Natalie, you want it, and Paul wants it too.“ Roger clapped his hands. “Up, you two horny lovebirds. Jump into bed!“

That was what Paul had needed Roger for, to say what neither Paul nor Natalie had the nerve to say. They looked at each other, then looked at Roger, who made appropriate hand movements as if he was going to scare them away. They both got up and walked hand in hand upstairs. At the top of the stairs, they both gave each other a deep first French kiss, for which Natalie had to reach up, and in which Paul let his hand rest on her firm ass. They let go of each other breathlessly and gave Roger below another look.

In her room, Natalie pulled her T-shirt over her head, but Paul had a problem unbuttoning his shirt with trembling hands. He saw Natalie fiddling with her jeans button, and got a hot look into her black bra when she leaned forward to remove the jeans. She was also wearing a black thong, and Paul said breathlessly “Oh, wow, are you sexy!”

In the meantime, he had gotten out of his pants and his bulging member almost burst his briefs. Both stood in front of each other with red cheeks heads and looked each other firmly in the eye. Natalie reached back, undid her bra, took two steps forward, and snuggled up against her step-dad from the front. His hot member pressed into her stomach, and her hard nipples and hemispherical breasts on his stomach gave Paul an indescribable feeling. Paul kneaded her firm ass cheeks and Natalie groaned loudly. They fumbled together for a long, long kiss. Paul crouched down and slipped off the now soaking-wet thong. He could already smell her wet lust, and her bare pussy with the firm labia just wanted to be licked. He stuck his tongue out as far as it could and let it slide between her labia - now and then he touched her clitoris.

Natalie groaned and slowly backed up to the bed. Like a dog, Paul followed her on all fours and never let go of her pussy. On the bed, Natalie gave her step-dad full access to her most private area by spreading her legs wide. Now Paul had free rein and spoiled every square millimeter of her pussy with his tongue. His fingers spread her labia, played with her clitoris, and reached into her warm, moist pussy. She moaned and twisted under his knowledgeable tongue. Shiver after shiver ran through her tiny body. Her hands rooted in Paul's hair. After five minutes of heavenly cunnilingus, she finally said, “Show it to me.”

Paul got up briefly, took off his briefs, and his splendid stick jumped out. She wanted to get up and lick him, but he wanted to continue licking her cunt, so they went into the side sixty-nine position. She bent her upper leg and he continued his cunnilingus.

“What a hot cock,” she shouted. “Finally, I get to see and touch it!”

Her hands cupped the shaft and pulled the foreskin back. “I've wanted that all along.”

“Me too. Finally, I can see your cunt up close and lick it,” said Paul from between her legs.

Natalie opened her mouth and slowly let his cock disappear into her mouth. The warmth of her lips made Paul wild. She sucked, licked, and pampered the stiff cock with her hands too. Paul would have devoted himself to her cunt even longer, but Natalie said “Dad, I...