Science Affair - Cover

Science Affair

Copyright© 2025 by Anonymous

Chapter 9

Young Adult Sex Story: Chapter 9 - A high school boy starts a science project with his best friend that ends up changing their lives.

Caution: This Young Adult Sex Story contains strong sexual content, including mt/ft   mt/Fa   Consensual   Incest   Group Sex   Orgy   Anal Sex   Oral Sex   Safe Sex  

I woke to hot lips nursing my cock. Kathy was lying on my hip, and my cock was hard. I growled at her and swung around so I could reach her pussy. She told me I owed her big-time for leaving her horny last night. I promised I would make up for it, so I lifted her leg and dove in. She was already wet, and let me tell you, that it was the breakfast of champions! I was all over her pussy, ass, and thighs as I worked. I was biting, sucking, kissing, licking, and probing with a lot of energy. It helped to distract me from what her lips and tongue were doing to my cock. I pushed two fingers in her cunt and rubbed the spot that revved her motor, while my other forefinger rubbed around her asshole, and I sucked her clit hard. She was bucking and cumming within a minute. I was getting close too, and I tried to hold it as she squeezed my cock during her orgasm. When she calmed down, I pulled away from her and switched ends. I pulled a condom out of my pants and rolled it on. She was panting, lying splayed out as I rolled over on her. I tried to avoid breathing in her face, morning mouth. I reached down, laid my cock along her furrow, and started short, slow strokes. After a minute or two, she was responding, and her breath was getting quick again. The condom desensitized me, and my cum urge withdrew. I started talking to her, and she murmured that she loved me. I kept up the description as she was rocking her pelvis against my strokes. We proceeded for many minutes as her tits, against my chest, began sweating. I was cool and controlled.

“In me.” She gasped and pulled me to her mouth for a kiss. So much for morning breath. I dropped lower and cockily went smoothly into his nest. It was wonderful! The slick, smooth pressure inside her cunt was heaven. I stayed all of the way in her until she rocked her pelvis a little, then I started the long, slow strokes. Her breath was catching as I hit bottom and withdrew. Her hands squeezed my ass and urged me faster. I stepped up the pace, and several minutes later, I felt the familiar clenching in my ass, followed shortly after by the cum building. I was going pretty fast, and she was grunting against my thrusts, pulling my ass hard to her pussy. I was pinching and pulling her nipples when she started sobbing, and my cum blew into the condom. As I came back, she was kissing me and telling me good morning. I laughed and hugged her. I told her how great it was to fuck her in the morning. I looked over at the clock, and it wasn’t yet 7:00 a.m. The little shit had gotten up early! We kissed, hugged, and talked like that until Mom knocked. I called out as Kathy scrambled out from under me and ran to her room in time. We met in the bathroom. Laughing, I told her that some morning she should answer Mom’s knock from my room and I from hers. She had a good chuckle over that, and we stepped into the shower together. I just loved running my soapy hands over her body and kissing her as we washed. My cock was never cleaner. We dried each other, sharing lots of kisses. She brushed her teeth, and I rubbed my semi-hard cock against her ass as she bent over the sink. She wiggled her ass against it, and I almost slipped it into her. I’d have to watch that until after her period. She went to her room, then I brushed, shaved, and dressed.

When I went downstairs, Mom was bubbly and hugged me. I ate breakfast, and we talked about Christmas break. She suggested we take a few days and go up to the cabin. We needed to put up some firewood and clean it up before the snow isolated it. I asked if Chuck could be invited, and she said, “Why not? He might enjoy it.” Her eyes were twinkling when she said it. Kathy came down and was as bubbly as Mom. We told her about the cabin, and she said sure. Now, this was a change for her. In the past, she always complained about going to the cabin. Mom’s eyes got big as she looked at me, surprised and questioning. I shrugged and went back to eating.

When we picked up Chuck, I told him about the cabin trip. He had been there before with us and said he would clear it with his mom. Kathy poked him with her elbow and warned, “You and Mom had better not keep us awake all night! The cabin isn’t as soundproof as the house.” Chuck blushed. We talked about the schedule and getting contacts set up this week. I reminded Kathy that we needed 25 mother/daughter subjects. She laughed and said it was no problem.

We went into Miss Monroe’s room and sat in front of her desk. She stood, greeted us, took off her suit jacket, and walked around to the front of her desk. Her blouse was creamy silk, and she wasn’t wearing a bra! They jiggled and swayed as her nipples showed plainly. Wow! She assumed the same position and thrust her tits against the silk. Silk has to be the sexiest material in the universe! She was smiling as we talked about the subjects this weekend, and we told her about the second frame. As we talked, she fiddled with the top two buttons of her blouse until they became undone. Man! I couldn’t wait for Wednesday! I was sporting a big one when I stood. She gave it a long look and leaned forward, showing her tits to me.

“Have a nice day, guys.” She was smirking, and I almost grabbed her. I wanted to throw her back on her desk and fuck the shit out of her! I think she knew what I was feeling. We checked the servers. As we left, she was pinching a nipple and blew me a kiss. Chuck was laughing, and I was groaning. He reminded me that he needed the car after school. We would drop Kathy at home, load the equipment, drop me off at the Munson’s, and he would pick me up there after he met Chrissy Clark. When we went back to Miss Monroe’s during study hall, she was in her suit coat and very teacher-like. Who would have thought?

After school, we went home and loaded. Chuck helped me carry the stuff up to the Munson’s door. I rang, and Mrs. Munson came to the door. Chuck said hi to her and climbed in the car as I carried the frame in. She was an attractive woman, a little older than Mom and very slim with wide shoulders and a small waist. She was in a print dress and low heels. Her dark hair was full and wavy around her shoulders, and her eyes were shocking blue. Her breasts were medium, and the whole effect was trim and neat. We set up in her kitchen, and she offered me a Coke. I thanked her. She brought two to the kitchen table. We sat and started discussing the project. I showed her some of the plots and comparison numbers. She told me Trina would be home after 7:00 if I wanted to come back and do her then. I told her that I would leave the equipment with her if she didn’t mind, and I would call before I came back. She said that would be fine, and then she asked me lots of questions about myself, my girlfriends, how my grades stood up, where I was going to college, etc. This went on for quite a while. I was open and honest about everything except the girlfriends. She asked me to call her Emily, and I told her she had beautiful eyes.

“Oh Mike, that’s a nice compliment!” She was blushing slightly. I reached for her hand, and she let me guide her to the chair. When she sat, her dress exposed her knees as she sat primly, her hands folded in her lap. I positioned the ruler/pencil for the first measurement, and those deep blue eyes were staring into mine. I finished the first reading and moved the pencil to the tip of her nose. She licked her lips, and the stare seemed to get hotter. I had progressed to her right ear, and as I pulled her hair back, my fingertips grazed her neck. She seemed to shiver. I held her hair back by placing my left hand on the back of her neck and let her soft hair tickle the back of my hand and wrist. Her nostrils were flaring when she breathed in, and her hands were pressing into her lap. I kept my hand on her neck as I wrote the reading down. I moved around in front of her and then to her left side. I pulled her hair back and let my hand rest on her neck again. This time, I stroked her neck and whispered that her skin was soft. I managed to take down the reading with my left hand and kept my right on her neck. She was breathing faster now as I returned to her front and looked into her eyes. She looked frightened or at least nervous.

“Emily, relax for a minute, and then we will do number two.” I said it softly, and she audibly exhaled as her eyes smiled at me. I sat in front of her, my knees outside of hers. I laid my hand on her knee and told her, “This is harder than it looks, isn’t it?” She smiled, licked her lips, and moved one hand over mine.

“Mike, I don’t know why I’m so nervous.” She was still breathing hard, and her hand was squeezing mine. I leaned closer to her.

“Maybe this will help.” I kissed her lips. They were hot and dry. I pulled back a little, and her hand had mine in a hard grip. I leaned forward again and kissed her with more feeling. Her hand pulled mine up her thigh about halfway. I pushed my tongue tip between her lips slightly, and she sighed, then her tongue met mine tentatively as I played mine over hers. She pulled my hand further up her thigh. I squeezed her thigh and pushed my hand further. Her dress was still under my palm, so I lifted my hand and used my fingertips to push up under the dress. Her thigh was hot as I slid up to her panties. Her knees were still tight together, but I could feel her bush through the panties. I dragged my fingertips over the juncture of her thighs and pussy as the kiss deepened. She slowly started to part her knees, moaning as her lips softened and opened. My fingertips traced over the crotch of her panties, and they were very moist. I moved my fingers up and down over her pussy rapidly, with light strokes. She moaned and tried to move her knees further apart, but the frame was in the way. I hooked it with my toes and pushed it back out of the way. Her knees splayed wide, then she placed a hand on my neck as we kissed. My hand returned to her crotch. I gave her pussy many light strokes, then I reached under her dress and pulled her panties off with both hands. She raised out of the seat to help and stepped out of them. This time when my fingers touched her pussy, the lips they were wide spread and dripping hot liquid. I softly stroked from her asshole to her clit. It was hot and juicy the whole way. Her clit was about 1/2 inch long and stubby. I squeezed it softly. She gasped and slid her ass forward on the seat. She broke the kiss and panted into my ear as I gave it more little squeezes.

“God!” She groaned and reached for my belt and undid my pants. I raised up as she pulled them and my shorts down to my knees. She grasped my cock and, moaning, pulled it toward her pussy. I picked her up by her ass cheeks and lifted her onto my cock. She straddled my legs and I lowered her onto my cock. I slid into her like my cock had eyes. Hot, slick, and smooth. She groaned when she hit bottom. I held her to me, and she clutched my neck, moaning against my ear as I stoked her ass. A minute later, she rocked her pelvis against me, and I kissed her hair. When I pulled her against me, she rocked again. There was very little movement of her cunt on my cock, but she was pressing her clit against my pubic bone. She kept it up for several minutes, and the rocking got faster. She was holding her breath, and at last, she let it out with a whoosh, crying as her cunt clutched at my cock. Her orgasm wasn’t very long. As she slowed, I raised up out of the chair and, keeping my cock all the way in her, I sat on the floor with her astride me. I lay back on the floor, and she leaned forward on me. She kissed me, then raised up to undo the front of her dress and pull it over her head. Her bra was white, lacy, and exposed the tops of her breasts. She reached behind and undid the clasp. They were wide and firm, with small pink nipples. I immediately pinched them between my fingers. Her hands covered mine as she closed her eyes and rocked her cunt hard against my cock. I slid in and out a little as she did it again. My cock was like a post as she rocked on it. I could feel the inside of her cunt squeeze and release as she rocked. Her rocking came faster, and she pressed my hands harder to her tits. I pinched and rolled the nipples harder as her movements became stronger. Her head was bobbing up and down as she concentrated. Sweat broke out on her face and stomach as she ground her cunt on my cock. Her hair was flying around her face, and her chest was flushed. Her moans became louder as she became frantic in her movements. She squeezed my hands hard and screeched as she threw her cunt against my cock. She went on for at least a minute, and as she began to slow, I started thrusting into her. I was bouncing her ass off my cock as I raised up, and then I hitched my hip a little, slamming into her as she came down. I guess you could describe the motion as similar to tossing a ball into the air, then swinging a bat to hit it. It was bounce, fuck, bounce, fuck, over and over. At last, she raised up on her knees a little, and I started slamming into her. She leaned down with her arms on the floor near my shoulders and started meeting my thrusts. It was wild! She was sobbing again as I felt the cum start up my cock, and I became a wildman trying to drive my cock into her cunt. At last, the first big blast shot into her, and they continued over and over as I emptied into her cunt. I blanked out for a minute.

She was rocking her pussy gently on my cock and crooning, “Oh, honey! God! So good! So good!” It was like a little song, and I hugged her to me. We kissed, and I whispered that her pussy felt wonderful as it clasped my cock, and her nipples were burning holes in my chest. I told her that her breath was hot and sweet against my neck, her skin was soft and smooth, like warm butter. She raised up a little and looked into my eyes as I told her how beautiful and sparkling her eyes were. I could feel cum and pussy juices mat my pubic hair between us. A few minutes later, my cock gave a little surge, and hers eyes widened. She rocked her cunt and squeezed inside. Cocky responded again.

“No! It’s not getting hard again, is it?” She was amazed. I just smiled and made it twitch in her cunt. It was definitely getting bigger. I thrust into her a little, and she gave me a dreamy smile. I ran my hands from her pubic hair up her smooth belly to her breasts and lightly pinched her nipples. Again, I thrust, and I was full size again.

“Oh God1 This is too wonderful!” She said it dreamily and slid her cunt forward, then back.

“Mike, honey, let’s go into my sewing room.” As she raised up off me, my cock plopped out and lay on my belly. She stood to the side as I stood and pulled my pants up. She grabbed my sticky cock and, pulling me after her, we went toward some French doors. She grabbed a towel from a drawer as we left the kitchen and went into a small room with a daybed on one wall and a sewing table on another. She pulled the cover off the bed and sat on it, then she proceeded to wipe the cum off my pubic hair and dabbed at her pussy. When most of the mess was off, she leaned down and kissed my cock.

“Up on the bed, honey.” She whispered, and as I sat, she started taking my clothes off. I was stripped in a minute, and she threw herself down on me for a squirming kiss. It wasn’t a minute before she sat up, straddled me, and sank her cunt down on my cock.

“Oh, honey! It’s so big in me! I love your cock, honey!” She was in a dreamland as she squirmed her cunt around on my cock.

“Please fuck me slow, honey! Fuck me slow!” I grabbed her shoulder and rolled her over till I was on top.

“Emily, look into my eyes as I fuck you slow.” I ordered, and she obeyed. I made a long, slow thrust, and her eyes rolled back a little as I bottomed in her. I backed out slow, and they refocused on me, then rolled back as I thrust in. Over and over, we went real slow, and she was in Never-Never Land. I asked her to tell me what was happening.

She focused on me, “Honey, I’m having orgasms every time you go all the way into me! I can’t remember cumming this much before. It’s beautiful, darling, beautiful!” Her eyes rolled back again. I sped up a little and added a little more tilt to my cock as it slid in. I was trying to rub the tip of my cock over the soft, dimpled area on the roof of her cunt. It worked because her cunt clamped down on my cock, and she was sobbing and throbbing on my cock. I continued the strokes, and she went on and on. At last, she gained some semblance of control and started urging me to fuck her hard. I sped up the strokes, and a few minutes later, I came in a screaming orgasm. When I came to, she was hugging me and kissing my face. I smiled at her and kissed her eyes.

“Emily, I love your eyes, your heart, your tits, and your pussy!” I gave her a little stroke with my semi-hard cock when I said “pussy”. She laughed and kissed me, long and sweet.

“Mike, honey, my eyes, my heart, my tits, and my pussy are yours whenever you want them. I have never been more satisfied and content in my life! You are going to make many women want you for the rest of your life.” She wiggled contentedly against me.

 
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