I liked Sandy long before she married Sam, and actually had known her longer than Sam, even though we had become very close friends over the last several years. To tell the truth I had watched her grow up. She's nearly 15 years younger than me and I have known her family all my life. She is 26 now and quite a woman. I was happy for Sam when I heard they were marrying, and a bit envious as well. Sandy is a tall drink of water with fabulous legs and tits that are remarkable as well. She's always been a tease and when she was still in high school she used to flirt with me like crazy whenever I was around her. Somehow I managed to resist the temptation when she was too young to mess with. By the time she got old enough she seemed to be too envolved with other men all the time and didn't flirt quite as much as before. But I still had my share of fantasy fucks with her and always loved to see her when she was showing off those legs, which was often. After she and Sam got married we did lots of things together as a couple and it was just accepted by us all that Sandy and I would flirt with each other. We both loved it and Sam didn't seem to mind either. I never considered the possibility of actually fucking her after she married Sam. At least not until about six months ago. It was the middle of the summer and Sam had borrowed some garden tools from me that he had neglected to return. I called him at work on my day off and asked about them, as I was planning on doing some yard work that day. He apologized for keeping them so long and told me to go over to his house and get them out of his shed if I needed them. He said not to bother to ring the doorbell, because Sandy was gone shopping and there wouldn't be anyone home. When I got to his house I noticed the car that Sandy usually drives in the driveway, but he didn't say she went shopping alone, so I didn't bother to ring the bell, but just went around the side of the house toward the shed in the backyard. What I saw when I turned the corner made me stop in my tracks with my mouth hanging open. Sandy was laying nude on a chaise lounge in the center of the backyard with her back to me. She wasn't aware that I had discovered her and was far too busy to notice me standing there. She was busy being fucked, and I do mean being fucked. What really took my breath away was that she was being fucked not by one of Sam's friends, but by their german sheppard. I stood there transfixed, staring at the lewd sight in front of me. Sandy was on her stomach with her legs hanging over the sides of the lounge and one of her big tits hanging down over the right side as well. Her head was turned to the left and the fucking dog shielded me from her line of sight even if she had looked back over her shoulder. She was moaning softly and the big sheppard was pumping her steadily, fighting to keep his balance as he shifted the position of his front paws on the pretty woman's naked back. I was slowly aware that Sandy was talking to the dog softly. "Yes, thats a good boy...fuck your bitch...your bitch is soooo hot...fuck your little dog fucking slut bitch deep and hard...do it!", she seethed. The dog suddenly yelped and started pumping faster into Sandy's upraised bottom. She fucked him back, moving her hips in small circles as the dog began cumming inside her, and plainly began having an orgasm of her own. I couldn't have walked away if I had wanted to, and I wasn't about to miss any of this. The dog finally spewed out all his fuck and his long dick made a popping sound as he freed it from the clenching muscle of Sandy's cunt. Sandy turned, planning, I think, to pull the dog to her once more, but instead became aware of my presence. "Oh God! What are you....did you see...ohhhhh nooooo!", she fell back to the lounge and began crying with shame. I walked over to her, not sure really what to do. I hadn't planned on witnessing anything like this, but I surely didn't want Sandy to be upset. I supposed she was afraid that I would tell Sam or that I would think badly of her after seeing her let the big dog dick her. "Sandy...its ok. Look, I'm sorry I walked up on you...I had no idea that you were even here, and Sam told me to walk on around to the shed to get my tools. Please don't cry, its really ok. I won't say anything to Sam about it, I promise. And to tell you the truth, I found it very exciting." I knelt beside her as she continued to sob, her face turned away from me. "But I'm so embarrased! I thought I could do that and no one would ever know. I should have known better! I'm so stupid!", she cried. "Awwww, Sandy. Sam wouldn't be upset if he knew you fucked his dog, would he? I mean its not like you were fucking his friend or something. Shucks, if you were mine I'd be wanting to watch you fuck the dog, especially after seeing it just now. It made me so hot!" "You're just being nice", she said. "I know you think terribly of me now...our friendship will never be the same." "Well, it may never be the same, thats true. But hopefully it will be even better now. Who knows maybe your little secret will be even safer now that I know about it. Maybe I can help you satisfy your needs now that I know what they are." "But its not like I have some wierd need to let dogs fuck me all the time....I was just so hot and so horny...Sam is great, and I really love him, but he only fucks me two or three times a week. Shit, there are days when I need fucking two or three times. All I have to do with the dog is just finger myself a little around him and he's ready." "Sandy, I understand, really I do. Believe me, I've know women like you and I really do understand what you're saying. But you don't have to try to deny your enjoyment of letting the dog stick his meat into you, I understand that part too. Its the very fact that it is so depraved and dirty that meets a need that you feel. Sam probably isn't ready to accept that part of who you are yet, but in time we may be able to bring him around. In the meantime, I really do think that I can help you out." "But I feel like such a slut! How can you still want me for a friend?" "Sandy, Sandy! I know you feel like a slut, you looked like a slut too. But that isn't necessarily bad, is it? I mean, you can be a slut without going all over town fucking any man who has a cock, even if you might enjoy thinking about doing that very thing. And who are you hurting by playing around with the family pet from time to time? Are you turning Sam away and not fucking him because you're getting some different dick? No, of course you aren't. You still want to fuck him as much as ever, and if he wants more of your little hole you'll give it to him gladly, I know. You see, Sandy, you're being a slut isn't anything that is going to ruin your marriage, but it may in fact be the very thing that saves it." "You make it sound like sluts are special or something. No one really feels that way about women who let dogs fuck them." "Trust me, Sandy. Look...if you had continued fucking the dog here at home like this Sam would have eventually caught you. Even if he didn't you sooner or later would have turned to some man to help you meet your needs. But not just any man would really understand your needs and you might wind up losing Sam over an affair with some guy that wouldn't be any more able to satisfy you than Sam is. With me, its going to be different. Different for lots of reasons, not the least of which is the fact that I am Sam's friend. I'm not going to try to steal you away from him or anything like that. You know that I care alot about you and always have, but I'm not in the market for a wife right now, and have no compulsion to encourage you to leave him. I want the two of you to be happy. And I think between the two of us we can slowly bring Sam around to the point that he will be able to be all that you need for him to be sexually. In the meantime if you're willing I can fill some of the void that you are feeling and even help you spend some safe time with the dog as often as you like. You just have to trust me and do as I say for a while. Can you do that?" "You won't tell Sam?", she asked, calming a bit now. "I won't tell him, but he has to know eventually. Thats the whole point. You can't deny the submissive nature that is so deep inside you, nor can you pretend that a couple of fucks a week is making you happy. But its alot for Sam to take in one bite, and we will have to gradually bring him around. I know we can do it, but you'll have to let me introduce Sam to some of my friends before he'll be able to accept your hunger. I know it won't be easy for you to think about Sam having sex with other women, but if you'll just trust me and let your fucking me make you even, you'll have him in the palm of your hand in a very short time, I'm sure. Or perhaps it would be more accurate to say that he'll have you in the palm of his hand. Whichever, you'll find Sam much more capable and interested in satisfying your deepest needs by the time we're done." "You're going to fix Sam up with some of your girlfriends? How is that going to help my marriage?" "You see Sandy, Sam probably does have the image of sluts that you were afraid that I might have. The only way to change that is for him to come to appreciate sluts as much more than just cheap fucks. When Sam begins wishing that you were a slut like the girls I'll introduce him to he'll be ready to accept you gradually becoming a slut, and he'll even think that he is turning you into what he wants you to be. You'll be getting exactly what you want and need from Sam, but he'll think that its the other way around and he'll love you even more for giving into his requests. Meanwhile, I'll pretend that I'm keeping you busy while he's fucking my sluts, but I'll really be helping you get your needs satisfied with no fear of him discovering our real activities." "Damn...how did you think of all that so fast? You'd think you had been planning this whole thing for years or something!" She was truly impressed. I chuckled at the look of wonder on her face and at the realization that she would soon be taking my dick. "I've done it before, Sandy, for other women. It works great, and is nearly fool- proof as long as you do exactly as I say to do and don't let yourself get upset about Sam getting some strange stuff in the process. If it will help any you can fuck me twice for every fuck that Sam gets...or even three times if you like." Sandy smiled broadly and laughed quietly. "You're all heart. Do you really think it will work?" "Yes, I do. You won't mind fucking me, will you? I suppose I could find some other man for you to screw if you wanted, but I'd really like for it to be me. Besides, you might learn some new things that Sam will really come to enjoy." "Oh, I didn't want to give you the impression that I wouldn't enjoy fucking you. I've thought about taking you inside me more times than I care to admit, and I love the idea of you teaching me to be the kind of slut that Sam will be getting to know. I don't have to fuck anyone other than you, and I don't have to fuck the dog either, if you don't want me to. He was just sort of a fill in, you know." "Relax, Sandy. I want you to fuck the dog for me, and by the time I'm through with Sam he'll be wanting you to fuck the dog too. You look really sexy when you're being fucked, and it made me hard as a rock to see the dog pumping you." "Ooooh, don't talk like that, you're making me need it again", she sighed. Her legs opened and her hand sneaked under her belly and began playing with her wet, dog-cum-filled, fuck hole. "I like it when you need it, Sandy. I like it when you have dog fuck running out of your hole and when you're still so hot that you have to rub your clit some more. Only a slut takes dog cum and then rubs her hand in it. Do you ever suck the dog?" Sandy's pretty ass was moving up and down now and her eyes were only half opened as she breathed out her reply. "Yessss, I do suck him...but I don't let him cum in my mouth...well, I would, but...well, I...I get so hot that I have to take him in my pussy." "I'm going to want to watch you take his dog fuck into your mouth, Sandy. I'll fuck you while you suck him so that your little slut cunt will be nice and full at the same time. You'd like that, wouldn't you?" Sandy didn't have to answer me vocally and she knew it. She was now fucking three fingers in and out of her hole and humping her hips wildly against her hand. I pulled my dick out of my pants and rubbed the head of it against her cheek. She turned her head and opened her mouth hungrily as she continued screwing herself there in the backyard. I slid my dick into her wet mouth, feeling her tongue slide along the shaft and her cheeks hug the big head as it traveled back toward her throat. She began to suck in rythym to the thrusts of my hips as I pumped my fuck meat into her. "Dog sucking, dog fucking slut....finger fucking cum craving long legged big titted slut whore.....my sex slave slut fuck hole....pumping those long fingers into your dog cum filled cunt....tasting man meat in your hungry mouth....feeling cock ahead against the back of your mouth....smelling my sex...feeling my hair scrubbing your slut chin and nose as I dick your face....thinking about it being the dog's dick and about feeling him pump his fuck into your mouth and throat.....now you can fuck the dog whenever you like, Sandy...you can be screwed as many times a day as you need from now on....you don't have to hide the fact that you're a dirty little dog fucking tramp fuck hole slut...." When my fuck began spewing into her mouth I had my thumb up her ass and three of my own fingers in her cunt and was lifting her into the air as we both fucked at her dripping hole. Her orgasm was violent and, had her mouth not been filled with dick, her cries would have been heard all over the neighborhood. Later, after we had showered together and come back to earth a bit we made plans for the coming week. There was lots for us both to look forward to, and I for one, could hardly wait. I called Sam before leaving her house. "Just wanted you to know that I got everything I needed, Sam", I said. "Good...did you get some yard work done?", he asked. "Oh yes...I got a couple of holes filled and dumped some stuff that needed dumping. Oh, by the way...your shepard was fucking some bitch in the backyard when I got there. Thats some randy pooch you have there." Sandy nearly fell out of the chair.