Mom and Dad had been home from their trip for just over a week. I had pretty much given up hope of any more mutual masturbation with Shannon. In fact, I barely saw her now and when I did she basically completely ignored me. I had thought maybe she'd at least increase her teasing, but even that died down to less than a trickle. I didn't let that stop me sneaking looks at her tits and ass whenever I could however; and now I didn't really worry any more about her catching me at it.
I was sad, but what the hell, the encounters we had were fucking hot and I jerked off constantly thinking about her playing with her big tits for me and letting me cum on them. I was now fantasizing a little about my mom too! I had always been attracted to Shannon, but had never looked at my mom that way. After the stuff with Shannon though, I was now really noticing what some of my friends had been telling me for years. My mom was kind of hot. I always knew her breasts were gigantic (way bigger than Shannon's even) but I had never really looked at them in a sexual way. That had totally changed.
I was having a pretty hot dream about my sister and my mom. In it, I was jerking off underneath a towel as I sat and watched them swimming in our pool. Their bathing suits were very wet and their nipples were poking through the wet material as their big titties bounced around.
I was sort of half-awake and was thinking how great it felt as I jerked off to them, when I woke up enough to realize I could hear some muffled breathing or soft moaning somewhere nearby. When my brain woke up enough to tell me the sound didn't make sense in the context of what I was seeing in my dream, I opened my eyes and realized I was in bed, not on a lawn chair near our pool watching my busty family frolicking in the water.
I still had that amazing feeling on my cock and saw in the gloom that Shannon was sitting on the edge of my bed. She was leaning over my lower body, and had my hard cock in her mouth!! She was slowly bobbing up and down it. I grunted in pleasure, for a brief moment thinking I was still dreaming.
She took her mouth off my cock when she heard my moan and looked up at me.
"Just let me finish," she whispered. She took my cock into her hand and stroked it slowly, flicking her tongue on the underside of my head.
I answered with another moan, and she took it into her mouth again, swishing her tongue around the swollen head before slowly sliding up and down my shaft again. Her wet mouth making quiet slurping noises as she sucked me off.
I was in heaven! After all but giving up on Shannon letting me jerk off to her again, here she was giving me a secret blowjob in the middle of the night! I just wished there was a little more light so I could see her better, but I could see enough and watching my cock bob in and out of her mouth was too much to bear. I tried to hold on as long as I could so I could enjoy the sensation of my sister sucking my cock, but then she started using her hand on my shaft too; twisting and sliding it up and down in time with her mouth.
"Here it cums!" I grunted a little louder than I probably should have. I felt Shannon hum on my cock as she moaned and I came hard. She stopped bobbing her head and stroked my cum out of my dick. My hard cock pulsed and throbbed, shooting streams of semen into her hot, wet mouth. She kept me in her mouth until I softened a little, swallowing my entire load.
Finally she let my cock plop out of her mouth and sat up straight. Her hand slid slowly up and down my chest as her silhouette looked at me.
"That was fun," she whispered. "I hope you liked it."
She leaned over and gave me a quick kiss on the lips before standing and quietly leaving my room. I tried to think of something to say, but she was gone before my stupid brain could focus.
I can tell you this much, even though there were a few moments where I was sure this had gone as far as it was going to go and I'd go from a crazy high to a pathetic low, after that sneaky blowjob, my confidence shot through the roof! My stomach still churned constantly from excitement, but I wasn't really nervous any more. I decided to try to make more happen and not just sit back and hope something would.
I stared openly at Shannon now, and we shared smiles and looks secretly. We didn't change any outward attitudes in front of anyone, but I would grab her ass when no one was looking and she would pull down her shirt for me to show off her cleavage, or would pinch her nipple over her shirt to tease me.
About a week after the blowjob (a week filled with teasing), we were having supper as a family (a very rare occurrence with our work schedules). Mom and dad sat beside each other on one side of the dinner table, Shannon and I sat on the other. Dad was droning on to mom about work. Mom was wearing a very light summer dress, and again I found myself sneaking peeks at her massive cleavage; I found it harder to stop myself now. Shannon was wearing a loose muscle shirt over her blue bikini top, and cotton shorts.
After looking long at mom's tits, I suddenly felt Shannon's hand on my crotch. I kept calm and looked at her. She smiled a sexy half smile and took a sip of her water with her free hand. She squeezed my cock under the table, and I got hard pretty much instantly. Dad kept telling his story and mom listened while she ate. I tried to keep eating, but my stomach was doing somersaults. Shannon slid her hand up and down my length over my shorts, giving it a squeeze every now and then.
I switched my fork to my left hand, and slid my right under the table, sliding it over her thigh between her legs. She opened her legs a little until I felt the warmth between her legs, over her shorts. She moved her hand from my cock so I could have better access, and I slowly rubbed her sex. She leaned in closer to the table, and slightly turned towards me. We did our best to pretend we were still eating, but if mom or dad had really looked they'd probably know something funny was going on.
I slid my hand up under the leg of her shorts and under her bikini bottoms until I felt her wet pussy. She was pretending to drink again, and was barely moving as I played with her moist slit. I couldn't reach her clit from my position, so I just slid a finger into her, feeling her warm wetness squeeze it. I slowly fucked her with my finger when mom suddenly stood and brought her plate to the counter!
I removed my hand quickly, my heart in my throat, but she didn't seem to notice that my hand had been rubbing my sister's pussy. Dad got up and left the dining room, heading for his study.
