Kelly's Diary 170 - Aunt and Cousin Do My Boyfriend - Cover

Kelly's Diary 170 - Aunt and Cousin Do My Boyfriend

Copyright© 2025 by Kelly85

Chapter 4: Aunt Linda Joins In

Incest Sex Story: Chapter 4: Aunt Linda Joins In - Lately I've been thinking about how to approach my boyfriend about my incestual family life as I think he may want to propose soon. Wouldn't you know that my cousin would take matters into her own hands. It was my fault - should have known better than to give the slut any ideas. Note: I wasn't there when this took place so I go by what my cousin and aunt told me. Thus I had to use some "literary license" to fill in the gaps and and reconcile differences in in their memories.

Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa   Fa/Fa   True Story   Incest   Cousins   Niece   Aunt   Oral Sex  

“Well, I see Kristen’s at it with her new toy ... again.”

Kristen ignored the voice, concentrating on her orgasm but Duane’s head spun around to see Kristen’s mom standing in the doorway. She was wearing a skirt outfit, a little more shorter than your typical Realtor would be wearing, well actually a LOT shorter and the blouse was way too tight as well, which made it perfect for showing off her boobs.

“Hey, don’t let me stop you,” she teased Duane, who had gripping his hard dick but had stopped stroking it when Linda came in the room.

It wasn’t like Linda hadn’t seen Duane’s dick before. Almost a year earlier, Kristen had brought him Duane from a party and they had been fucking in the bedroom when she came home, actually a very similar situation to this now. At the time, she had just smiled and left them alone. On his way out, with Kristen left lying on the bed upstairs, Linda had been by the door and as he passed her to leave, she had whispered to him seductively that if he was interested, to give her a call on her cell phone. There was little doubt as to what he needed to be “interested in, it certainly wasn’t real estate, at least not land.

Duane had called her a few days later and they ended up fucking a few times over the course of the next couple of months. It was just casual sex for both of them but they had enjoyed it. He was also doing Kristen more at the same time but it was like they had an unspoken truce. They never mentioned the other when he was with one of them. In fact, Duane wasn’t even entirely certain that Kristen knew he was fucking her mom. They never discussed it and Duane figured, why make an issue of something if you didn’t have to?

Sure Kristen had teased him about doing her and her mom earlier at church, but he has always assumed that she was just doing that - teasing. Kristen was known for being the biggest flirt in western PA and she would say about anything when it came to sex so you never knew for sure what she was plotting. Although he was a little surprised that she had come home while he and Kristen were having sex, he quickly assumed she would simply do what she had the last time, turn around and ignore them. It was not to be. Linda walked in the room and reached down to grab Duane’s cock for his own hand.

“Damn Duane, I swear you’ve grown since our last time. How long ago WAS that, anyway?”

Duane wasn’t sure what to say as Linda started to slowly stroke his quivering cock. Kristen was still flat on her back, appearing to ignore anything else in the room not directly associated with her pussy at the moment.

“She really does love that damn thing, doesn’t she,” Linda joked with Duane. “Best present I ever bought her. Well, you wouldn’t catch me dead with something like that up inside of me, that’s for sure.”

She paused and looked down at Duane’s cock, in full erection mode with sexy Kristen nude next to him. In her own way, Linda was just as sexy, even fully dressed, in how it showed off her body and the way she was gripping his dick.

“You know Duane, there’s something else I would rather have up my pussy about now. What do you think THAT is?”

Duane looked over at Kristen for just a second and then back at Linda, who was sitting next to him now, still stroking his dick slowly with her hand. He knew exactly what Linda wanted and he also knew what HE wanted as well.

“She’ll be fine with that for the next hour or two,’ Linda sighed, rolling her eyes as she looked over at Kristen as she masturbated while playing with her dildo. “Now turn around so I can sit on that lovely dick.”

She didn’t even bother to undress, leaving her heels and all her clothes on. Lifting up her short skirt, she revealed a jet black thong which barely concealed the heavy growth of pubic hair that covered her crotch. Linda had told him long ago that shaved crotches were for baby girls and young women. Women her age should act their age and shaving her pussy just wasn’t natural. She DID trim it so it wouldn’t show when she wore underwear and bikinis that were small in the crotch, but what was left was full and thick and pushed out against her thong. Reaching down, she pulled it to the side as she backed in to Duane and literally sat down on his lap, letting his dick slide up into her easily.

“You’ll have to excuse me for being so wet already, but it was quite a showing this afternoon,” she teased him.

Duane knew what she was referring to. Linda was a real estate agent with a reputation for doing whatever was necessary to close the deal - and that meant just about anything.

It must have been quite an experience for Duane. Every guy seems to fantasize about two things - sisters (preferably twins) and mother-daughter pairs. Sure Kristen had teased him about being with her and her mom, but he hadn’t expected it to really happen.

Linda bounced on Duane’s dick, holding her thong to the side as his cock slide effortlessly in and out of her pussy. Meanwhile, Kristen was working on her second orgasm, more or less ignoring her mother and Duane. Duane reached around Linda, unbuttoning her blouse and pulling her bra up and over her boobs so he could grab onto them and squeeze them.

“Ah fuck this,” Linda huffed and she removed her top and bra, leaving her skirt and thong on for the moment so she wouldn’t have to dismount her stud.

Linda held back her thong with one hand while she reached down and rubbed her clit while the other, all while Duane rubbed her boobs and pinched her nipples. Finally she stood up, letting the skirt and thong slid down to her ankles. She stepped out of them, leaving her heels on, and laid down on the bed nude by her daughter who was still absorbed with her dildo.

“Hey dear, mommy’s home?” she teased Kristen, turning over to kiss Kristen on the lips.

Duane stood there at the end of the bed, his wet cock standing at attention as he watched Linda kissing her daughter, moving her hand to her breasts and kneading them like fresh dough. Linda looked back at Duane and smiled.

“What’s the matter, can’t a mother kiss her daughter?” she teased him.

Then she reached down and pulled the dildo out of Kristen’s pussy and ass, leaving Kristen panting on her back, gasping for air like a fish out of water. Looking back at Duane again, Linda said, “I think it’s time she had a real dick in her, don’t you Duane?”

Duane didn’t bother saying anything, what could he say after all? It’s not every day a girl’s mother invites a dude to fuck her daughter, especially when she’s laying nude next to her as well at the time. If he had any reservations about fucking Kristen in front of her mom, he was too horny to worry about them. It probably could have been his own mother and he still would have stuck his dick in Kristen under the same circumstances.

“Oh god, yes!” Kristen moaned as Duane entered her, his dick sliding in easily after the workout her pussy had just had with the huge dildo. She was incredible slick between the lube from the dildo and her own pussy juices after two orgasms.

Meanwhile, Linda was rubbing Kristen’s clit with one finger as she started to suck on her nipples.

“I’ve got to say, I love watching your dick moving in and out of my daughter. Isn’t she pretty?” Linda purred to him as Duane pumped his cock in and out of her like a locomotive piston. “You don’t mind me watching, do you Duane? I’m just so proud of her sometimes.”

Duane just shook his head, struggling as it was to keep his breath as he worked his dick in and out of Kristen as hard and fast as he could. Linda rolled back over on her back and spread her legs apart, then looked at Duane and curled her finger at him, inviting him over to her.

“OK stud, if you’re going to fuck my daughter, you have to pay me some attention too.”

Duane looked a bit surprised at that one. It was OK with him to fuck Kristen in front of her mom but to fuck her mother in front of Kristen just somehow seemed altogether different. Sure Kristen apparently knew that he had fucked her mom before, but KNOWING it and WATCHING it are two totally separate things.

“Get that hard dick over here now and fuck me, do you hear me Duane?” Linda said again, a little more testy this time.

Who could blame her as she was super horny and needed to be fucked - badly. Besides, having sex with Duane with her nude daughter laying right next to her just made it all the better. Sure Kristen was one incredible hot girl, but her mom still had a few tricks up her sleeve. She was only about ten years older than Duane so it wasn’t like he was doing his own mother or an old lady for that matter.

Duane realized she was serious and besides, the sight of seeing Linda on her back with her legs apart like some whore was too much for him to resist. He pulled his dick out of Kristen, leaving her to mew like a lost kitten at the sudden emptiness in her pussy, and scooted over to Linda. Just as he got there, she flipped over on her side, facing Kristen.

“Get in behind me and fuck me from behind,” Linda instructed him.

Duane did as he was told and laid behind her. Linda raised her upper leg up and rested her foot on his thigh, opening herself up wide for him. As hard as Duane was and as wet and open as Linda’s pussy was, he easily slid in and started to stroke in and out. Looking over her shoulder, he saw that Kristen had turned over on her side to face her mother. Her eyes were looking down and he could see she was watching his stiff dick as it pumped in and out of her mother’s hairy pussy. Then he realized why Linda had wanted him to fuck her in this position - so Kristen could get a better view of him fucking her mom.

“So how does it feel to fuck me in front of my daughter?” Linda asked him over her shoulder. It was if she was getting off as much from Kristen watching as from his dick in her. Duane responded simply by thrusting a little extra hard into her - message delivered!

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