by Just Plain Bob

Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa, Consensual, Heterosexual, Cheating, Incest, Brother, Sister, Slow, .

Desc: Incest Sex Story: I caught her with her lover.

I had no idea what suddenly made me suspect that my wife was having sex with someone else. One day we were sitting at the dinner table smiling at each other and talking about how our respective days had gone and the next day at the same table I was sitting there looking at Dina and thinking, "Just what in the hell are you up to."

I had seen nothing to make me suspect Dina, nor had I heard anything. All I had was a sudden feeling. It was as if I had walked into the room and there was a hint of something in the air that said, "Hey Mike, your wife is cheating on you." I started doing all the things that suspicious husband's do like checking the laundry hamper for telltale signs on her panties. I checked out her car — looking under the seats and checking out the trunk — and found nothing. I got up in the middle of the night and went through her purse. I checked entries in her checkbook and I closely scanned the Visa and MasterCard bills when they came in.

I checked the cell phone bill when it came in and I got her cell phone and checked out her address list and speed dial numbers and found absolutely nothing. I burned up some accumulated sick leave sitting in a car down the block and watching the house. I even followed her half a dozen times. One month after becoming suspicious and going into search mode I was left to consider only two possible explanations: My wife was a pure as the driven snow and I was mentally unstable or my wife was better at sneaking around than James Bond, old 007 himself. After a month of looking I gave up the hunt. I still had the feeling that she was cheating on me, but it was obvious to me that I wasn't going to find out for sure.

Several months went by and the feeling got stronger. There was a change in my relationship with Dina, mostly for the better and I wondered if that was an indication that my feeling had some foundation. I remembered reading somewhere that an increase in sexual activity could be a sign that your partner was cheating. The theory being that the cheating spouse felt guilty and tried to assuage that guilt by giving their partner more sex. My sex life with Dina had undergone a change. Over the years we had gradually gone from four or five times a week to two or maybe three times in a two week period, but in the last month Dina seemed to initiate sex more often and we were up to two and sometimes three times a week.

The biggest change was in what Dina wanted to do. She had always been willing to give me head, but she would never let me cum in her mouth. One night while we were making love Dina said, "I want to do something tonight that you might think is weird."


"When you are ready to cum would you pull out and do it on my tits and stomach?"

She was right; I did think it was a weird thing for her to want to do, but I did it and then she surprised the hell out of me by wiping some up with her fingers, tasting it and then she sucked them clean.

"Next time I give you head sweetie I want you to cum in my mouth, okay?"

Two days later she shocked the hell out of me.

"Mike honey, why haven't we ever tried anal sex?"

"We did. Once on our honeymoon and you said never again."

"I did? I don't remember it."

"You said it hurt just too damned much and not to even think about trying it again."

"Well that was a long time ago and I think that I would like to try it, would you?"

"Why now Dina, why after all these years?"

"You won't laugh at me?"

"Of course not."

"I just felt that our sex life was going stale and I want to see if I can't put some 'zip' back into it."

Yeah, right, I thought, there was a little extra zip in her sex life and I knew why, but I couldn't prove it. But then I got to thinking, did I really want to? Things were going good, Dina and I were getting along great, our sex life was improving and, hey, to be honest, all I had was an unsupported feeling. I decided to stop looking for stuff that might not even exist.

Three more months went by and then one day my boss had a working breakfast with the eight guys in my department. By eleven-thirty six of us were running to the john every five minutes or so and exhibiting all the symptoms of a mild case of food poisoning. At noon the boss told us to take the rest of the day off. I wasn't two steps inside my front door when I heard it and there was absolutely no doubt in my mind anymore about the "feeling" that I had been having all along.


It was the sound that Dina makes when she is having an orgasm. It rang through the house. When Dina and I made love she always pulled a pillow over her face so the kids wouldn't hear her, but with me at work and the kids in school she had no need for a pillow that day. I guess a normal man would have gone running up the stairs and stormed in on the cheating pair, but I didn't. I had no way of knowing what I was going to find when I went into that room and I wasn't going to charge in on someone who might be a foot taller and a hundred pounds heavier. The asshole had already helped ruin my marriage, but I'd be damned if I'd give him a chance ruin me too. If size was equal I would tear into him and hope for the best, but I didn't believe in lost causes.

As I moved quietly up the stairs and moved to the home office that I had turned the spare bedroom into I heard Dina say, "Oh god honey, that was the best one yet. Come on and let me suck you hard again and let's see if you can do it to me again."

Steam was starting to come out of my ears as I heard that and when I entered the spare bedroom I headed straight for the closet. I spun the combination dial on the gun safe in the closet and took out the Colt 1911A1 pistol, made sure that the clip was full and then I pulled the slide back and chambered a round. I reached behind me and tucked the pistol between my back and my belt where I could get to it quickly. I wasn't planning on using it, but I wanted it ready if I had to. Given the way cops and courts are these days if I entered the room with the pistol in my hand it wasn't inconceivable that even though I was the wronged party I could be hit with anything from spousal abuse to felony menacing. Best to keep it tucked away and out of sight until, and if, it was needed for self-defense.

From our bedroom I heard the moans and whimpers that Dina makes when she is being fucked and I took a deep breath to prepare myself and then I moved across the hall to our room. They didn't see me as I came through the door and my jaw dropped as I took in the scene in front of me. On the bed and on her knees with her head on a pillow was Dina and behind her shoving his hard cock into his mother was my son Mark. Suddenly the confrontation I was prepared for was no longer an option. Since they hadn't yet seen me I quietly backed out of the room so not to draw their attention and I let myself into my daughter Cyndi's room which was right across the hall. I left the door open a crack so that I could look across the hall at what was going on between Mark and his mother.

It was very confusing and not just a little bit weird. I was full of anger at my wife's betray and had it been anyone else buried in her pussy I would be in that room kicking ass and taking names. But the other side of me was telling me to be careful, that whatever I did would have lasting and far-reaching consequences for my family. I wasn't thinking of just Dina, Mark, Cyndi and myself. If I had just walked in on Dina and some other man and then tossed her ass out Dina's relationship with her mother, father, siblings, aunts, uncles and grandparents would have gone on and I'm sure that in time, at least as far as they were concerned, I would come to be seen as the villain of the piece. But the fact that Mark was involved would change things.

I couldn't care less what that would do to Dina's relationship with her family, but what would it do to mine? If I stormed over there and broke things up and tossed Dina out I would also have to toss out Mark. My mom and dad doted on Mark and Cyndi. What would happen there? And then there was Cyndi. She idolized her big brother so what would happen there as far as her relationship with her mother, Mark and me?

Setting aside the emotional effect of the situation on family how would my friends and coworkers and clients react to knowing that I was part of an incestuous scandal? The fact that I wasn't anything but a victim wouldn't cut any ice with a lot of people; they would just "Know" that I was part of it. Cyndi would get tarred with the same brush.

"You know if the kid was banging his mom he was nailing his sister too. And you think that little slut wouldn't be doing her daddy? Come on; stuff like that can't go on in a house and everybody there not know. Mike just got pissed that the kid was doing a better job on Dina than he was."

Then there was the why, when and how long. How could he? How could she?

In the room across the hall Dina was howling her way through another orgasm and maybe thirty seconds later Mark pulled out of his mom and fell to the bed beside her. Dina rolled onto her side and she started fondling Mark's limp dick. She was lying there with her legs slightly spread and I could see a small tear drop shaped glob of cum hanging on her pussy lips.

"Don't you have a three o'clock class?" Dina asked.

"No, that's Monday and Thursday. Today I have a four o'clock on Business Law."

"Does that mean I can get a little more?"

"You can if you can find someway to get me up again."

"Oh mommy can do that sweetie; have no fear on that score," and she changed position, lifted his limp cock with her hand and then took it in her mouth.

.... There is more of this story ...

The source of this story is Storiesonline

For the rest of this story you need to be logged in: Log In or Register for a Free account

Story tagged with:
Ma/Fa / Consensual / Heterosexual / Cheating / Incest / Brother / Sister / Slow /