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You are here: Home / Incest sex stories / Science Project by amyss

Science Project by amyss

Adult story Editor August 24, 2024 Leave a Comment

On the screen, the guy disconnected from the woman and his sopping wet dick slapped against his belly. As she knelt astride him, he put both his hands at the base of his cock, encircling it, then used the thumb of one hand to point it up to the sky.

“Inspection Pose!” said Josh.

“What? What the hell is that?”

When I looked back over at Josh, he’d pulled his cock out of his waistband again and put his hands around the base just like the guy on TV.

“C’mon, Alex, you have to do this when it’s time for Inspection Pose. It’s a rule.”

All my rational thought had been shoved aside by horniness, so I was in no position to argue. And with the electromagnet between my hand and cock, it actually felt amazing to pull it out of my boxers and point it at the ceiling.

The woman was leaning over with her face just inches from his tent pole, eyeing it. I’m sure he could feel her ragged breaths on his thin skin. I had to admit that he had a good dick for porn. It was long and perfectly straight in addition to being totally hairless. It also didn’t hurt that it was so hard as to be throbbing. I couldn’t help but compare his cock to mine and Josh’s. Josh’s wasn’t as long as his, but it looked like it would be right at home in a porn video. Josh had plenty of hair, but it was all trimmed short, longer than stubble but much shorter than mine. He was throbbing just as intensely as the guy on screen.

As I was comparing Josh to the guy on TV, I caught Josh looking in my direction, and I realized that he might be doing the same thing. My member looked shaggy next to theirs because I’d never even once trimmed any hair. Mine also had a slight bend that seemed like it would be out of place on TV. But at that moment, pointed up to the sky, it felt as long and as hard and as sexy as it had ever felt, and I had an aching urge for a warm, wet pussy to slide down over it. Someday.

The woman stuck out her tongue and tapped it against his shaft a couple of times, barely enough to nudge it. Then she pulled her tongue back in and gave it a few kisses all along the length. After a moment she pulled away and then kissed him right at the tip, all while he was holding himself in this weird inspection pose and Josh and I were holding ourselves exactly the same way.

With her mouth still on the tip, we could see that she applied some suction because her cheeks caved in, and then her mouth descended onto the shaft. The flavor must have been mostly hers, so she was undoubtedly getting a strong taste of herself while she bobbed up and down on him.

The mid-sex blow-job ended when the guy on the screen let go of his cock and spun the woman around. Josh used this as his cue to let go of his own rod, but he didn’t put it back in his boxers this time, instead just tucking the waistband along the underside of his balls. I was so close to the edge that I wanted to take my boxers off and throw them away, but for science, I carefully stuffed my cock back inside. Partway through this operation I had to stop and let go, because I felt like I was getting too close. After ten seconds without any touching I felt like I’d cooled off, and I reassembled my bulge.

On TV, the camera had moved to the foot of the chaise lounge and the woman was facing us. I don’t know much about sex positions, but I do know reverse cowgirl when I see it. And let me tell you, this was a sight to behold. Those beautiful tits were literally flying up and down. For some reason watching these tits was almost more than I could stand. I had to move my hand away from my crotch again because this woman was getting me so horny.

His hands were back on her hips, and even though her body was in the foreground, we could see him eagerly thrusting, pulling her up and down, ensuring that she gave us a good show. She started with her hands on his knees, but for only a few moments. Then she had her hands in her hair, running her fingers through her ringlets in the sexiest way imaginable and framing her body divinely.

I nearly blew my load again when she put one hand under each breast, exactly where I wanted my hands to be, and looked right into the camera at me. I don’t know if her hands were there for support or just to stimulate me, but I said out loud, “Mm, I’m so close.” I hadn’t intended to share my sexual arousal level with Josh, but I couldn’t help it. The words came out on their own.

“Yeah, me too,” said Josh. He was holding the base of his cock with his left hand and using just a couple of fingers of his right hand in tiny motions on the back of the shaft. “I could cum any second now if I wanted.”

The guy pushed the woman off of him and guided her over to the next chaise, the one she was on originally. Except he arranged her backwards, with her head in the middle of the lounge and her feet aimed up the backrest. In this pose, her crotch was right at the headrest, and he knelt at just the height for his tongue to be perfectly positioned. The camera zoomed in on her sweet pussy as he licked those sexy lips apart, letting his tongue tickle her clit just the way she liked. She moaned with pleasure, and he had to put one hand on each leg to keep her from thrashing about.

“That woman must taste incredible after being turned on this long,” Josh said. “You know, you can’t just put your tongue on a clit right away, and even if you did it wouldn’t taste like anything. But after she’s been dripping wet this long, yum yum.”

I was listening, but barely. Mostly I was just trying to make as few movements as possible to keep me from going over the edge. “Yeah,” I said.

The guy moved one of his hands away from her leg and brought it to the center of the action. We watched him run a finger through her pussy lips, eliciting another series of moans. As casually as anything, he guided his middle finger inside her and slid it in all the way, just as he returned his tongue to her clit. He didn’t pump his hand in and out, which might have been my instinct, but just made slow gentle motions with his finger as the tip of his tongue danced. Judging from her reaction, she was in ecstasy, even more so when he withdrew his finger and added a second, then a third.

A shrill beeping suddenly pierced the air, and I instinctively looked at the screen to see how this played into the plot. Only after they failed to react did I understand that the timer was up.

“That’s twenty minutes,” Josh said. “Time for science.” His cock was still protruding lasciviously from his waistband, and he used the timer as an excuse to peel off his boxers entirely and toss them aside. My brother, naked from the waist down and horny, got up from his end of the couch and walked over to my end, facing me. He said, “OK, what do we have here? Stand up and let’s take a look.”

“OK.” Slowly and carefully, I stood. Even without touching myself, I could feel arousal just from my body parts shifting around as I moved. I arranged my cock so it was mostly horizontal because I figured it would be least in his way. I cannot tell you how bizarre it was to stand there, face to face with him, while I could actually watch the pulsing of his shaft.

He knelt on the floor in front of me, his face aligned with my crotch, inspecting the source of my wetness. He said, “Oh, this isn’t what I was expecting at all.”

“What are you talking about?”

“I mean, there isn’t just one big wet spot here. There’s lots of little wet spots all over the place. Dammit, we should have kept your penis from moving around so much.” Even as he said this, I watched his hand drop down and give his own meat a few pumps. It’s not so easy to keep a hard cock perfectly still.

I asked, “What does this mean for the science?”

“There’s a lot of precum here, for sure. But I don’t know how to measure it.” After a pause, he continued. “Next time we know what to do differently.” I wasn’t sure we did, and I wasn’t sure I wanted there to be a next time even if we did.

“Wait, so that’s it? You’re giving up? After making such a big deal of it?”

“Yep, ‘fraid so. Something else I need to do right now.” He got up and went back to his end of the couch, pulling his shirt over his head on the way, leaving him completely naked. I sat down again too, wondering what he had in mind now that the science was a bust. As if in response to my silent question, he licked his hand and slid it down his shaft, and I could hear a squishy sound coming from his side of the couch despite the action on TV.

Josh was staring at the screen again, and he said, “I’m gonna cum at the same time as this guy. It’s just a few minutes now.” When I didn’t respond right away, he gave me just the shortest of glances, then said, “You can do whatever you want. Cum with me if you want.”

I took the weight off my butt just long enough to slip off my boxers, which were pretty soaked, and tossed them on the floor. I held my pulsing cock still, and as I watched, a droplet of precum appeared at the tip and began to slowly work its way down the head. The tiniest motions of my hand on my shaft were keeping me right at the edge. I wasn’t sure I could even make it another couple of minutes.

The action on the screen had turned to the missionary position, although the guy was mostly upright, which gave us a great view of her tits sliding around. The camera tightened in on the exact point where they were connected. I was barely touching myself, so lightly, as close to the edge as I’d ever been.

And then, with no warning, the front door opened. All of a sudden every possible variety of fear swept through me all at once as my sister appeared. All of these thoughts went through my head practically instantaneously: God, I can’t let my sister see what we’re watching. God, I can’t let my sister see me with my cock out. God, I can’t let my sister see me with my cock out and hard. God, I can’t let my sister see me with my cock out and hard next to Josh. Why didn’t I just leave my boxers on? Why did I let Josh talk me in to this? Why didn’t I just stay home?

What happened next was entirely instinct. I quickly slid down from the couch onto the floor, where I grabbed my boxers and pulled them on top of my midsection as best I could. But the quick motion, and the direct contact between my shorts and my cock, was more than enough to push me over the edge, even though that was the last thing I wanted right then. But I couldn’t help it. An involuntary reflex took over, and I exploded with about eight spurts of thick cum. I tried to catch them all with my boxers, but a couple shots went directly on the carpet. Never had I felt an orgasm that gave me such divergent feelings. I was literally in heaven because of the exquisite orgasmic bliss that radiated from my crotch down my legs, making me tingle. At the same time, I was literally in hell because of the shame of being discovered in such a vulnerable place by, of all people, my sister.

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