Science Affair
Copyright© 2025 by Anonymous
Chapter 7
Young Adult Sex Story: Chapter 7 - 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
We awoke late. I kissed Kathy and jumped in the shower. I was downstairs eating cereal when Mom came down in her dressing gown and started making coffee. I told her I was going over to Aunt Steph’s. Mom seemed a little distracted. I bet Chuck was dead to the world. I loaded the equipment and drove to Aunt Steph’s. She lived across town in a condo she had moved into after the divorce. I hauled my gear to her door and rang the bell. She appeared a minute later and looked hot! She was wearing skintight jeans and a loose blouse. I thought I saw some jiggling, and her nipples seemed prominent. I got a kiss on the lips and her tits in my chest. Yup. No bra!
I set up in her kitchen. We talked about the project and what we had determined so far as we sat at her breakfast bar. I didn’t mention that most of the subjects had been fucked, but I was thinking it. I showed her the plots we had done, and she looked them over as she leaned on my shoulder, a warm, pointed tit pressed against my arm. Her breath brushed the side of my face, and she smelled wonderful. My dick hardened. As she moved to the chair, I bucked up my courage, stood, swallowed, and didn’t try to hide my cock. She sat in the chair and looked right at my cock as I approached. She didn’t say anything or indicate that she was offended, but her eyes got a little larger. I put the guide on the frame and brought the point to the bridge of her nose. As I leaned forward to take the reading, I could see down her blouse, and there they were; two beautiful, full tits with prominent pink nipples that were very similar to Kathy’s. I must have stared for too long as she asked, “Having trouble?” I looked back to her eyes, and they were twinkling. I read the measurements and wrote them down. Next was the tip of her nose, and she giggled.
“It tickles!” She was smiling. I looked down at her tits again, and the nipples seemed to be harder and sticking out further.
“Having trouble?” she asked again as I looked into her eyes. They were hot-looking eyes.
“Very much! You are too beautiful and very distracting!” I meant it. My heart was pounding, and my face felt flushed.
“Oh, Mike! You are very flattering. It’s so nice to hear a compliment from a young, handsome man!” She was looking at me with a little smile. I leaned a little closer.
“May I kiss you, Aunt Steph?” I whispered.
She smiled and whispered back, “I’d be very flattered.” I swung the guide away, and she tilted her face up to me. It was a sweet and soft kiss. Her lips were extremely soft and seemed moist. My breath had quickened, and I felt lightheaded.
As the kiss broke, I moaned, “Oh shit, Aunt Steph! May I?” She nodded, and I went back for another as she brought her hand to my cheek and caressed it. Her breath came a little faster too. I backed off the kiss, and she pulled my face back to hers for another. Now her tongue was tracing my lips, and I met hers with mine. I dropped to my knees as the kiss continued, and she pushed her tongue into my mouth. I framed her face with my hands, and the kiss became hotter. We were breathing hard when I moved my hands down her neck to her breasts. They were hot and full. The nipples seemed to burn my palms. She moaned and pushed them into my hands. I squeezed them gently and ran my thumbs over her nipples for several minutes. The kiss was now getting wild as she was moving her open mouth over my face and licking me. She was growling as her hands were roaming over my shoulder, arms, and hands as I caressed those wonderful tits.
She broke the kiss and, breathing hard, “Mike, would you please love your old Aunt?”
I looked into her eyes, and there seemed to be a little fear in them.
“I love you with all my heart, Aunt Steph!”
She seemed to relax and smiled.
“What I meant was, will you make love to me? I need loving so much!” I kissed her and caressed her tits again. She wrapped her arms around my neck and kissed me harder. She broke the kiss and, holding my hands to her tits, she stood. I pressed my face to her tummy and kissed her through the blouse.
“Come.” She said it with urgency. As I stood, she grabbed my hand and pulled me up the stairs to her bedroom. Her bed was king-sized and looked like a big playground. She stopped beside the bed and turned to me as her hands went to the buttons on her blouse. Her eyes met mine briefly, then she shyly looked away and then back. I was struck dumb. Here was one of my wet dreams taking her clothes off like a shy virgin. She pulled the tails out of her jeans and dropped the blouse off her shoulders to the floor. Her breasts were full and perfect. I moaned and cupped them for a second in my shaking hands. Her hands quickly unbuttoned my shirt, and she jerked it out of my pants as I undid the sleeve buttons. She pushed it off my shoulders, and I pulled it off behind my back. She pulled my T-shirt up, and I helped take it over my head. She pressed her breasts against me as I hugged her. We kissed for a minute, and my hands roamed her hot back. She stepped back, undid her jeans, and started to peel them off. The operative word here is peel. They were very tight, and she wiggled a lot to get them over her butt and started down her thighs. Her bikini panties were cut way up on her hips and didn’t cover her pussy completely. She sat on the edge of the bed as I grasped the cuffs of the jeans and pulled them off while she wiggled and giggled. Her breasts were swaying and jiggling as she held her hands down on the bed to keep from sliding off as I pulled. At last, they slipped off her calves, and I was looking at the briefest bikini panties I had ever seen. She hopped off the bed and kneeled in front of me as she undid my pants. I was pulling my shoes off with my toes as she pulled them down. My cock tented my shorts when the pants cleared. She laid her cheek against it as she pulled my pants down, and I stepped out of them. She immediately pulled my shorts off and grasped my cock in her fist.”Oh, Mike! It’s lovely!” I had never thought my cock was lovely until then. She kissed the head of it and ran her tongue around the rim. I just about came! I pulled her up and set her on the bed. I grabbed her panties and pulled them down as she laid back and raised her butt. Her mons had a thin strip of light brown hair that was very neatly trimmed. Her pussy lips were full and tight together. She had raised to a sitting position. I pushed her onto her back, grasped her ankles, and pulled them apart. Without preliminaries, I leaned between her thighs and licked her pussy lips. They were still tight together, so I did it again, and they were still tight. I hardened the tip of my tongue and forced it between the lips. It was suddenly sweet and hot! My mouth started watering as I worked the tip up and down between the tight lips. She was moaning softly as I stroked my tongue up and down. The lips seemed to soften and part a little as I worked. I sucked the puffy lips between my lips and licked the inner lips lightly. I worked down to her cunt and pushed my tongue in as far as I could. She bucked a little and her thighs squeezed my shoulders. It was hot, sweet, and tight. I sucked and tongue-fucked her for a few minutes. It seemed that her cunt loosened a little and it was definitely getting wetter. I pulled out and licked up lightly in search of her clitoris. The lips were still tight as I got closer and I hardened my tongue tip to force its way to her clit. The first time I touched it, she bucked hard. I tried to give it a gentle lick and her puffy lips forced my tongue away. I brought my hands up and used my thumbs to pry those pussy lips apart. At last, I could see her clit under its little hood, trying to peek out. I licked the sides of the hood gently and she thrust up against my face hard. Oh? She liked that! I proceeded to lick around her clitoris for several minutes and she was getting frantic. At last, I licked it directly and sucked it between my lips. I looked up as I sucked. She was pulling her nipples way out and her eyes were squeezed tight. I started sucking it harder and brushing my tongue over it lightly. She was bucking against my mouth with little jerks. I stayed in that mode until the jerks got harder. I sucked harder and licked harder. She started screaming and mashed my face to her clitoris with her hands. Her pussy was mashing my chin as I kept my nose high enough to breathe. She came for a long time as I rode it out with sucks and kisses. At last, she pulled my face up her body, and we kissed as my cock nestled against her wet pussy. She broke the kiss and whispered for me to put it in. I reached down and rubbed the tip up and down the moist slit, but they didn’t part to let me in. I pushed harder as she spread her knees wide, and I finally slid into the hottest and tightest cunt I had been in. It was tighter than Kathy is when she was sore and puffy in there. I was about halfway in when I stopped pushing.
“God, Mike! It’s so big! Oh God!” I kissed her face and mouth as I held my position.
“Shit!” I suddenly realized I was in her without a condom.
“I should put a condom on!”
“No need, honey. I’m safe.” She was looking into my eyes and smiling.
“God, Steph! You are so tight!” I kissed her again, and she moved her feet up my calves so that her heels were behind my knees. I pulled out a little, and it went in a little further. I gradually worked my cock in until my pubic bone mashed hers. It was so tight and hot I could feel my cum start boiling. I pulled back about halfway, and I came as I pushed back into her. I just forced my pubic bone against her as I came in that hot cunt. It was kind of fun to control my action as I pumped cum in her.
“Did you cum?” She asked softly. I nodded and told her not to move. I stayed in her for several minutes as I told her how hot and tight she was. I described how I loved the way her pussy lips seemed to want to protect her cunt and clitoris from my tongue and cock. I kissed her eyes and told her how hard I got as she pressed her breast into my arm at Grandma’s. I moved my chest over her nipples as I described how hot and hard her nipples were and how soft her breasts were under them. She stroked my face, back, and butt as I talked. I felt twinges in my cock and she gave a start as it started growing in her.
“Oh my! It’s wonderful, Mike! I’ve never felt a cock get hard in me before!” She squirmed her ass on the bed, and the little movement caused me to harden more. I pulled out a fraction of an inch, and it slipped easily. The cum and pussy juice were making it easier to slip in and out of that tight cunt. I pulled way back and slowly slid in. It was gorgeous. I was fully erect now, and I started long, slow strokes. She was sighing, and her feet were caressing my thighs and calves. I kept the pace up for a long time, and she was breathing with gasps as she touched me all over with quick hands. Suddenly, she groaned, and her heels kicked me in the ass. I kept up the slow strokes while she continued her orgasm. As she started to come down, I increased the speed and power. She went back into it. Her hands were clutching my back as if she was afraid of falling. As her hands eased up, I went faster. Now I could feel the tightness in my balls and my ass clenching. She was grunting, and her nails were digging in my back as I speeded up, starting to pound her cunt. Her cunt was squishing as I pounded. I was yelling something as my cum ran up my cock with agonizing slowness, and at last, it blew into that hot, squishy pussy. I blanked out, and when I came to, she was hugging me tight, her legs were wrapped around my ass, holding me in her cunt. I smiled into her eyes as my sweat dripped onto her chin and neck. She threw her arms around my neck and pulled her face up to me for a warm, wet kiss. My arms were shaking, and I slowly rolled off her to my right. Her cunt gave an audible squishy pop as my cocked popped out. I was weak and shaking as she rolled onto my chest and gave me little kisses. We gave each other little kisses while I stroked her ass and back for a long time. At last, she raised up, braced herself on my chest with her forearms, and smiled down at me.
“Mike, that was the nicest lovemaking of my life. Where did you learn to do that?”
“I was inspired, I guess. You are so sexy and pretty. I love you so much, and I wanted you to be happy.” I was telling the truth.
“Oh, honey! I love you too. You are the most considerate lover I have ever had! My pussy is pretty small, and most men don’t last long. I have never had an orgasm with a cock in me before! It was wonderful. When can you put that beautiful cock back in my pussy?”
“Give me a couple of minutes?” I was smiling, and my heart was swelling.
“Oh, honey!” She squeezed me, and we had a beautiful kiss. She got to her knees, and I could see very little cum on her pussy. It was so tight it couldn’t get out! “Come on.” She pulled me off the bed.
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