We are caught in the act!

She was laughing so hard, she had dropped her shirt down to her lap, exposing her tits. I looked up at John and he was staring at his older sister's luscious melons, jiggling as she sat there, busting a gut, laughing at us. I looked down and saw that his dick had gotten quite hard, stretching down his left leg. This was something that did not escape Kim's attention. She said, "Well, well, well! It looks like little brother is a whole lot bigger than I thought he was!"

John's face went a whole shade redder, I wasn't sure if it was caused by embarrassment or excitement.

"So, did you really beat-off after seeing me naked, when we were younger?" she asked, as she moved her shirt from her lap, spreading her sexy legs, completely exposing her wet little twat. I watched John's eyes open as wide as her legs! "Is this what you wanted to see? Is it this, that got you so excited, you had to jack off?"

Then he mumbled something, that I couldn't quite make out.

Kim said, "I'll make you a deal, if you can see fit to not tell Ken about me and Clint, I'll make it well worth your while."

Now my dick was once again, hard as nails! This could be my fantasy cum true!

John stammered, "What....what do...do you mean by that?" an incredulous look on his face.

I would have to guess, that I had much the same look on my face, as I tried to figure out exactly what she meant by that comment.

She said, almost in a whisper, "Why don't you come over here and find out, little brother?"

He stood there, hesitating, his dick, straining against his pant leg, a small spot of moisture had formed on his pants, right at the end of his cock.

"Come on, come closer Johnny"

"Wha...what are you...you going to...to do?" he stammered.

"Get over here and you'll find out!"

He looked at me, with a stunned expression on his face that was quite comical. I just smiled, I had never seen him so flustered. Then he slowly started to walk the ten feet that separated him from his sister. He shuffled over to her, as she waited, sitting there naked on the couch. He stood there nervously, right in front of Kim, his crotch about even with her face, as she looked at the huge bulge in his pants, licking her lips. She reached up and felt his hard cock through the thin material, he gasped, obviously enjoying the moment.

"Yes, indeed! This is a whole lot bigger than the last time I saw it!" she purred, "How old were you, maybe twelve or thirteen?"

He simply shrugged his shoulders and opened his mouth, as if to say something, only to close it again, without saying a word. She unzipped his zipper, her hand disappeared into his pants, as she pulled his huge, throbbing shlong out. I just sat there, eyes riveted on the scene that was unfolding before me. I couldn't believe what I was witnessing! I couldn't count how many times I had jacked-off, while I fantasized about something like this happening. Kim held his engorged member in her hand, gasping at the shear size and weight of it. It was a good eight and a half inches long and big enough around, that she couldn't touch her fingers to her thumb.

At this point, John says, "I don't know if I feel right about this, Kim."

"It feels and looks like you do to me! Just look at the pre-cum dripping off of it and it's hard as a rock!" she exclaimed excitedly. He blushed deeply, once again, as she slowly stroked his shaft a couple of times, causing a low moan to escape from his lips. Then she stuck her tongue out and gently licked the underside of the swollen head, running her tongue up across his pee-hole, licking the pre-cum from the end of his prick, as he groaned with pleasure.

Suddenly, she turned to me and said, "You guys never told me about Las Vegas, tell me about it before I go any farther."

This snapped me out of the trancelike state I was in, bringing me back to reality with a jolt. It appeared to have the same effect on John, because he visibly jerked a little, hearing her words and then he turned to look at me with a questioning look. At that point, I realized that I had been unconsciously stroking my cock, which was so hard it was almost unbearable, pre-cum dripping from the head, down the shaft and all over my hand. I sat there and looked at my options. I could tell her what we had done a couple of years earlier, on our trip to Vegas, but I still wasn't sure what she would think of the two of us, especially me! I did know that one thing was for sure, I didn't want this to end without having some fun first.

"Well, I'm waiting." Kim said, impatiently.

I thought about it, looked up at John again and shrugged my shoulders. From the look on John's face, I could tell that he was going through the same torturous thoughts and by the looks of it, he didn't want it to end either.

"Fuck it," I thought to myself, I figured, here she was, holding her own brother's cock, her saliva still drying on it's tip. I knew that she was quite a kinky woman, she should be able to deal with it. So, I decided to show her. I slid closer to her on the couch, gave her a quick kiss, then I reached up and grabbed his dick and turned my head and gave it a lick. He groaned, half from pleasure, half from embarrassment, she raised her eyebrows with a shocked look on her face.

"Are you trying to tell me, that you two..." her words trailed off, as she watched me take the head of his cock into my mouth. Her mouth hung open, as wide as mine, only hers was empty.

John said, almost shouting, "We're not gay!"

Kim totally cracked up at this point, giggling uncontrollably, as she fell back against the couch. I guess, it's kind of difficult to convince her we're not gay, when I've got the head of his dick in my mouth. I stopped, letting go of his monster cock and I turned and looked at her and as I stuck a finger into her wet little snatch I said, "Come on Baby, you don't really think that I'm gay, do you?"

She looked at me, grabbing hold of my iron hard cock and said, "Well, I guess you're not actually gay, but what do you call a guy that will do what you just did?"

I thought about it for a second and replied, "Horny!"

At that point, we all cracked up, the laughter breaking the tension and somehow, I knew everything would be all right. After a few minutes of giggling, Kim says, "So that's the deep, dark secret? You guy's had sex with each other, while you were in Las Vegas?"

"All we did was give each other a little head, it wasn't really sex!" John exclaimed.

"That's right, just ask Bill Clinton!" I added.

We all had another good laugh and then we told Kim the whole story, about how we wound up doing some "experimenting" after we shared a woman, on that fateful weekend.

I told her, "I don't consider a guy to be actually gay, if they have absolutely no feelings toward men in a romantic sense and if they just 'play around' a little with another guy, it's just that, playing around." I looked at her, trying to read the expression on her face. Then I continued, "To this day, I never look at guys and think about how hot they are, but women, will drive me absolutely crazy! It was purely a matter of circumstance and curiosity that we wound up doing what we did."

"That's how I feel about it," said John, "Guy's just don't turn me on, as far as wanting to kiss one or something."

Kim looked at us for a minute and said mischievously, "Well, I guess I can deal with it, so before you guys lose your boners, maybe we should have some fun!"

She reached out and grabbed both of our dicks, stroking them slowly. We both moaned, as the feeling of her warm, soft hands brought us much pleasure. She said, "I've never done it with two guys before, I think I'm going to like this!"

I rubbed her pussy and bent down to suck on one of her tits. She told John to sit down and finish taking his pants off, as she released his wang from her grip.