Note: This story was dynamically reformatted for online reading convenience. John and Marsha Nevins left their son Bud and daughter, Claire at Marsha's parents house to stay for a week while they went on a vacation. Her parents were happy to have them stay with them. They loved their grandkids and was looking forward to the week ahead. Bud and Claire go up to their rooms and then Claire comes to Bud's room. She says, "How the fuck are we going to be able to do our thing here with Grandma and Grandpa around." Bud says, "I don't know, I'm beginning to think that maybe we'll have to give it up for the next week." Later that evening, They were watching TV along with Edna and Jerome, their Grandparents. All of a sudden they had a naked woman with bare tits, Edna says, "Bud close your eyes right now, and keep them closed until I tell you to open them." He says, "It's alright Grandma, I know what a girls tits look like, Mom and Dad don't mind me seeing tits." Edna says, "Is that true Claire, They don't mind if he sees tits." She says, "Yes, Grandma, They don't mind in the least. In fact It's alright if I see men's cocks also and Bud can see a girls pussy. Edna says, "Boy, Your mother has sure gotten very liberal since she's gotten married. Jerry says, "Yeah, too bad she wasn't that liberal when she was young and maybe I could have fuc...." Edna jumps in and says, Alright that's enough of that in front of the children." Claire says, "It's alright Grandma, what was you going to say Grandpa, That you could have fucked her?" He tells her Yeah that was what I was going to say. Claire says, "You mean that you would have been willing to fuck your own daughter, too." He says, "Well Yes, If I had gotten a chance. What do you mean by, "fuck your daughter, too" She says, "Oh, nothing Grandpa, why don't we just watch the movie and maybe it'll have more tits in it. About 10:00 they all go to bed and Claire comes into Bud's room through the door between the rooms. She says, "I think that went very good with Grandma and Grandpa. They think it's alright now for us to see naked men and women and now we can do our thing and fuck together," Bud says, "Yeah but what if they come in and catch us?" She says, "All we got to do is tell them that Mom and Dad lets us do it all the time and they do it with us also." He says, "Well I guess it'll be OK, Their in bed and most likely won't catch us anyway. OK let's do it right now, I've been horny ever since I saw that girls tits on TV." They both get undressed and he gets on top of her and begins fucking her when the door opens and Edna sees what is happening. She say, "Oh, My God, Just what do you two think your doing fucking your sister that way. Claire says, "It's alright Grandma we do it all the time at home and Mom and Dad don't mind us doing it together." Jerry shows up and wants to know what all the noise is and then says, "Wow, Claire sure has some kind of body on her for her age." Edna says, "Well, Bud isn't to shabby himself with the size of his cock. They tell me that Their parents don't mind them fucking together. I was just thinking, I wonder if they would mind if Bud was to fuck someone else as well." Claire says, "Shit Grandma, They wouldn't care, after all they fuck us and we fuck them too. Who do you mean about Bud fucking someone else, YOU?" She says, "Yeah honey I was talking about me. I wouldn't mind at all about getting some of his cock in me, if he was willing to." Bud says, "Shit, Grandma, I'd love to fuck you and I'll bet that Grandpa would love to fuck Claire." Claire says, "I know I'd love to have him fuck me, I'm always willing to be fucked by a new cock. Do you eat pussy, Grandpa?" He tells her that he does and loves to do it. She tells him that she loves to have her pussy sucked and especially her clit. He says, "So it's alright if I suck your tits and then your pussy and you won't hate me for doing it to you." She says, "Shit Gramps, I'll love you even more than I do now if you go ahead and make love to me and end with fucking me. I'm sure that Bud feels the same way about you Grandma, if you let him fuck you also." She says, "Well, It's alright with me to have him fuck me as long as he fucks his mother. I wouldn't want to have him fuck me if he wasn't used to fucking." Claire says, "Shit, Grandma, He's fucked Mom I'd say a good 800-1,000 times, He's been fucking her now for about 3 years now. He fucks her almost every day and sometimes a couple of times a day. Dad is about the same way with his fucking me, he fucks me almost every day also. And sometimes 2-3 times a day. In fact on my birthday he usually fucks me 4-5 times on my birthday, He wants to get me pregnant, but I don't know if something is wrong with me or what, because as much cum as he shoots in me, I still don't get pregnant. That's why I keep having Bud fuck me to, to see if he can get me knocked up." Edna says, "Well, maybe Jerry can get you pregnant. He was pretty potent when he was younger, after all he knocked out your mother and 2 sisters and 2 brothers out of me. Let's get undressed Jerry and take care of these two youngsters." They both get undressed and Claire says, "Shit Grandma you and Grandpa have nice looking bodies on you for as old as you are. Jerry begins to suck on Claire's tits and Edna starts sucking on Bud's cock. Then they all end up fucking. They did the same thing for the rest of the week. Fucking with their Grandparents. Claire says, " This has been a great week, hasn't it Bud, getting to have them fuck us all week." Bud says, "Yeah, But what happens when Mom and Dad get back and Grandma says something to them about their fucking us. Claire says, "I hadn't really thought about that but I'll think of something when the time comes. Their parents are supposed to arrive tomorrow and she goes to her Grandma and says, "Well, Mom and Dad are going to be coming home tomorrow, boy will I be glad to see them and get a chance to have Dad fuck me again." Edna says, "Whats the matter honey? Honey doesn't Grandpa fuck you good enough or as good as your Daddy?" She says, "Oh, Grandpa fucks real good, it's just that I like to be fucked by different cocks. Grandma, I was thinking that maybe you shouldn't say anything to Mom and Dad about what we've been doing during the week. I might make them mad that we let you fuck us and that you did fuck us. They said that we weren't supposed to tell anyone about them doing it with us." Edna says, "I suppose your right, I wouldn't want to get you guys in trouble for letting us know about them fucking you. I won't say a word to them about what we've been doing for the week, and you don't say a word to them either. We'll just keep it a secret between us and when you guys come over to stay we can do it some more." Claire says, "Good, That'll save a lot of trouble for all of us. They did their thing for the last time together, at least for awhile that day and the next day their parents arrive and are welcome very enthusiastically. True to her word Edna nor Jerry said a word about what went on during the week with the children. When they got home they did everything like normal and were watching TV and a movie came on and Bud says, "Hey, this is the movie that Grandma and Grandpa were watching with us last week. Boy, does it have a good sex scene with the girl showing her big tits. Oops! I'm sorry Mom for saying that." Marsha, his Mom says, It's alright. You're getting old enough now and I don't mind if you use that foul language. Claire says, "Shit, How about me too Mom. I know all the words too and would love to be able to say them when I want. I use them when you and Dad aren't around and have to watch myself when you are around. Please let me go ahead and say all the words when I want to." She says, "Well, I guess it would be OK since your brother will be saying them in front of you, now when you get in an argument you can cuss him out also. It might be fun to listen to you going back and forth with each other. Just make sure that you don't use the words whenever some stranger is around to hear you, or your Grandma or Grandpa either. Bud says, "Mom, how come your getting to be so liberal all of a sudden. It used to be that if we did something or said something you'd bawl us out for it. Then when I mentioned that girl with the big tits on TV, it didn't even seem to phase you any. I saw that girl with her bare tits and I had a flashback to when I was little and you let me suck on your tit. I don't know how many times I've thought of that and wished that I could suck on your tits now. I don't suppose that it would be possible to suck your tits, would it Mom?" She says, "So you've been dreaming of sucking on my tits, have you. I suppose you've also dreamed about going lower on me and eating my pussy also, haven't you?" He says sheepishly, "Well yes, I have thought about doing that also with you and other things to." She says, "Like what, Would you like to fuck me also? He says, "Well, Yes I would love to be able to fuck you, Mom if you'd let me." She says, "Well now that we're getting all this out in the open, I suppose that Claire would like to suck her father's cock and have him fuck her also, right Claire." Claire says, "Well actually Mom, I have thought about that and would love to suck Dad's cock and have him fuck me." Marsha says, "Well if that's the case then lets all get undressed and get to it. Claire says, "Holy shit, Mom, are you serious. You mean that you'll let Bud fuck you and suck on your tits and pussy and I can suck Dad's cock and have him fuck me?" She says, "If that's what you want to do, it's alright with us. We'll do it together, I won't mind being fucked by Bud and I'm sure your father won't mind fucking you either." He says, "Shit, I'm going to love to be able to fuck my little daughter and have her suck me. We're going to have some good times from now on." Bud says, "You mean that we'll be able to fuck and suck you and Mom from now on, Dad?" He says, "If you want to you can, Do you want to do it with us?" He says, "Shit Dad, Are you kidding we'd love to be able to fuck you and Mom from now on." Claire says, "That's my sentiments exactly, I just wish that you guys would have started this with us a long time ago. Marsha says to John, her husband, "I think that we should tell them the truth about what we were doing on our vacation. Do you guys know what wife swapping is?" Claire says, "Shit, I know, It's when say you go with another man and he fucks you and Dad goes with the guys wife and fucks her." Marsha says, "That is exactly what it is and that was what we were doing on our vacation. A man at your father's work and his wife and your father and I swapped wives for the week. The man was fucking me and your father was fucking his wife, all week long and was it fun, being fucked by someone new that way. But that wasn't all. They fuck their children and we fucked them also during the week. They have kids that are much younger than you are and they fuck as great as a grown up. They have a girl that's 12 and one that's 7 and a boy that's 13 and another boy that's 10. Even the 10 year old boy was a great fucker and he has a beautiful nice big cock on him already as young as he is." Bud says, "Shit Mom, Are we going to get to meet them, I'd like to fuck that 12 year old girl and also see how the 7 year old one feels when I fuck her." Marsha says, "I'm sure that you'll be able to meet them all and get a chance to fuck them also, including their Mom." Claire says, "I guess, their Dad would be able to fuck me also, right." John says, "Yes, I'm sure that he would love to fuck you, with that fabulous little body that you have on you." John says, "I got a bigger thrill when I shot my cum into that 7 year old than when I fucked your mother or even Calvin's wife, I know that it must just be the thought of fucking a little girl of 7 years old that makes it feel so good, but it sure does feel good to cum in a girl that young. I wonder what it would feel like if I was to fuck a girl, say maybe 3-4 years old, if it would give me a even bigger thrill, cumming in them. I might have to see if Cal knows of anyone that has a girl that young that fucks. Shit, I just thought, Your sister Jen just had a baby a couple of years ago, do they fuck the kids?" Marsha says, "Yes, She did, about two years ago, But I don't think that they fuck their kids. But even if they did, the baby would be way to little to get a cock into her little cunt, her cunt wouldn't be that big to get your cock into it." He says, "Yeah, I guess your right, shit." Claire says, "How would you feel about fucking an older woman, say maybe Grandma, for instance?" He says, "It just wouldn't be the same feeling, though I have always thought that I would love to fuck Edna." Marsha says, "Shit, You've wanted to fuck my mother, Shit, I've always wanted to be fucked by Daddy." Claire says, "So let's go to Grandma's house and see if we can get them into fucking us, I'd love to have Grandpa fuck me, I'll bet that he's a great fucker and has a big cock on him, even as old as he is." Marsha says, "If we was to do it, you're never going to say anything about how old he is or how big or small his cock is, If is wasn't for his cock, I wouldn't be here right now and You wouldn't be here either. I just don't know if we should try to include Mom and Dad into doing this though. They might not like the idea of us fucking you kids and the idea of having Dad fuck me and your father fucking Mom. The idea of you bringing this up about your Grandma and Grandpa, You don't know something do you? Did they say or do something while you were there. Claire says, "Well, Mom, I did hear Grandma say to Grandpa once, when she didn't know we were around, that she sure would like to have a different cock to fuck her, just for a little variety." She said that, Huh! Hmmmm, Maybe she would like to have you fuck her, John and Bud you could probably fuck her also and that would really give her a variety especially in sizes. We'll maybe go see her tomorrow and maybe feel her out and see if she'd be interested in doing it. But enough of this talking lets get to some action, Bud get over her and let me suck your cock for you and then you can eat my pussy and fuck me." He goes over to his Mom and she begins sucking his cock and also his balls. She then tells him to go ahead and suck on her tits like he wanted to do and work his way down to her pussy and start eating her. She asks him if he knows where her clitoris is and he tells her that he knows what it looks like and how to suck it for her. While they are doing their thing together Claire and John are doing about the same thing together themselves. In the end John cums in Claire and Bud cums in his Mom. Marsha says, "While we were at Calvin's house and were fucking their kids and then they shot some home video of us while we were fucking and gave us a copy of it, would you guys like to see us fucking them and their kids." Bud says, "Shit Yes Mom, then I can see what the little girls look like without their clothes on and what I'm going to be able to fuck sometime." They all watch the video of Marsha and John fucking the little kids and Calvin and his wife. Bud says, "Yeah I'm going to enjoy fucking that 12 year old girl and her Mom isn't that bad either, I hope I can fuck her also." John says, "I'm sure that you'll be able to fuck all the girls big and little in their family." I getting kind of tired from all this. Why don't we go to bed early and get a good sleep and have plenty of energy for tomorrow, in case we get to fuck Edna. The next day they go to Edna and Jerry's house and Edna greets Marsha. Edna asks John and the kids to go into the kitchen while she talks with Marsha and kiss' her right on the mouth and sticks her tongue into Marsha's mouth. Marsha says, "Shit Mom, What was that about. Giving me a French kiss?" Edna says, "Oh, You didn't like me doing that to you?" She says, "I didn't say that, I enjoyed it very much, but it's just so not like you to do something like that, with anyone. You seem like you've change a little." Edna says, "Well, Do you like the change or not?" Marsha says, "Yeah I like the change. I think i would like to see even more of a change also." Edna says, "Well, Jerry has sort of changed also and like to stick something into your mouth and not his tongue." She says, "He does what does he want to stick in my mouth?" Edna says, "Well, What he'd like to stick in your mouth is his cock and have you suck it for him and maybe even suck him off." Marsha says, "Holy shit, Mom, are you serious you want me to suck Dad's cock for him." Edna says, "Does that shock you to hear what he'd like you to do to him?" Marsha says, "Yeah Mom, It does shock the shit out of me, but I'd love to suck his cock and if he'd like to have him fuck me also, if you'd let him do that." Edna says, "The only thing is what about John, Do you think that he'll let you do it with your father?" Marsha says, "I'm sure he'll let Dad fuck me, as long as he can fuck you also." She says, "Shit, You mean that he'd want to fuck me, at my age." Marsha says, "He's wanted to fuck you for years and years. Also the kids would like to be able to fuck you and have Dad fuck them also." Edna says, "Shit, You mean that the kids fuck also? Are you into incest with the kids? Are you and John fucking them?" Marsha says, "Yeah, does that bother you, Mom?" She says, "Shit No, I'd like to fuck them myself and Your father would probably love to fuck Claire himself. How long have you been fucking the kids, Honey?" Shes says, "We just started last night and the kids said that we should get you and Dad into doing this also, that they would love to have you to fuck with." Edna says, "So you just started last night, huh?" Marsha said, "Yeah, When we were gone for the week we went over to a guys house that John works with and John and I swapped wife's and husbands and they are into fucking their kids and we fucked their kids for the whole week and it was great. They have a daughter that is 7 years old and she is a great fucker, even at that age. Would you and Dad be interested in meeting them and fucking with them also?" Edna says, "We'd love to meet them and be able to fuck with them and their kids." Marsha says, "Let's you and I and Dad get undressed and then call Jon and the kids in and give them a surprise when they see us all naked." They all get undress and call John and the kids back into the room. They all come in and Bud says, "Wow, Grandma you look good naked." She says, "Don't you mean that I still look good. That's what you mean don't you?" He says, "Yeah, I guess that's what I really mean." Marsha says, "What's going on here, it sounds like you've seen your Grandma naked before, Bud?' Edna says, "Yeah, He has and Claire also and the four of us have been fucking all week long while you were gone. The first night that they were here we caught Bud and Claire fucking up in her room and they told us that it was alright for them to fuck because they did it at home all the time and that you and John fucked them all the time and didn't mind them fucking. So it ended up that Jerry and I started to fucking them also. They said to not say anything to you about it, so that you didn't find out that they told us about you fucking them. Then you said that you just started fucking them last night." Marsha says, "So you told them that we were fucking you huh?" Claire says, "What the fuck is the difference Mom, We were just a little early with what we said, It's all true now so nothing has changed. John and Marsha Nevins Bud and Claire Edna and Jerry Calvin and Arlene Jennifer