Kelly's Diary 123 - My Cousin Finally Gets His Little Sister
Copyright© 2025 by Kelly85
Chapter 3: Tammy Surprises Her Brother
Incest Sex Story: Chapter 3: Tammy Surprises Her Brother - She had been teasing her brother (he would say torturing) since she gave him her first blowjob last Christmas vacation. Now she wasn't a virgin anymore so would Tammy finally give her brother what he'd been craving for so long?
Caution: This Incest Sex Story contains strong sexual content, including Ma/ft Incest Brother Sister Oral Sex
I decided it was time to move on so I pushed my chair back from the table and stood up between the two of them.
“Well, on THAT note, I’m sure you two didn’t come over here to debate incest so let’s quit wasting time and have some fun!” I suggested.
Rick laughed and pointed at Tammy saying, “Sounds like a GREAT idea - get over here sis and suck my dick.”
“Not until you say please,” she taunted him, a huge grin on her face betraying her willingness.
Rick reached over and grabbed her, pulling her up against him. “Oh, and since when do I have to say please you little slut? From my way of thinking YOU should be the way saying please! You know you love my dick.”
Sure, it may have bordered on being crude yet at the same time I got a kick out of their little banter. I thought about what he’d said about their mom catching them and tried to imagine what she would say if she had just heard this exchange between Rick and his sister. If anything, it just made what they did seem all the hotter to me knowing their prudish mother would go totally ballistic if she even had a clue of what they did right behind her back! Tammy grinned and moved over to where Rick as sitting.
“Well, if you want so bad for me to suck your poor little dick, why are you still dressed?” she said with a sly smile.
Rick didn’t need to be told twice and I watched closely as he quickly stripped off his shorts and sneakers and sat back down again. Mmmmmmm, one look at his hairy crotch was all I needed to verify he was already aroused and my mouth watered as I saw his rigid cock extending from his crotch but Tammy wasn’t satisfied.
“I meant everything and you know it,” she demanded, arms crossed in defiance.
Although Rick sighed in mock exasperation, he quickly pulled off his T-shirt such that he was now sitting there nude. Wow! I admired his cut body and no matter how Tammy might have felt about him fucking her, I certainly was open to the idea!
Tammy still had this big grin on her face. No matter how she might feel about being fucked by her brother, I knew she LOVED sucking his cock more than any other guy’s. Looking at him, I certainly couldn’t blame her. There he was, leaning back in the chair with his legs obscenely spread apart, his erect cock rising from his lush pubic hair like a ballistic missile on the launch pad. It wasn’t just Rick’s erection that caught my eye. Rick simply had a nice looking cock. Some guys just have weird looking cocks with strange colors and covered with birth marks but Rick’s was classic with a large smooth head and a darker ring around his shaft below the head. The rest of him was sleek and smooth and tasted wonderful. For a teenage boy he was also better than average in terms of maintaining his personal hygiene. While I don’t mind a little smell of sweat and musk, some guys don’t seem to believe in daily showers and can get downright raunchy. Rick was almost always clean and I loved to bury my face in his hairy crotch and take in a deep breath of his pure male scent.
“Now THAT’S what I wanted to see - a nice hard cock waiting just for me,” Tammy teased Rick. With that she dropped to her knees and reached out to grab his shaft with one hand. As I watched, she slowly began to stroke him and tease him.
“I bet you wish you’d been out on the boat with us, don’t you?” she said, winking at me. Without waiting for an answer - it was obvious anyway, she continued, “Uncle John loved the way I sucked his dick but I love your cock the best.”
I sat back down on my chair and watched as my little cousin nestled her way in between her brother’s bare legs, never losing her firm grip on his cock. She rested her arms on his thighs and looked up at him with a smile. “Now tell me what you want,” she demanded in a sultry voice.
“God I want you to suck my dick so bad,” Rick groaned, “I want to watch you take it all in your mouth.”
“Mmmmmmm, now THAT is what I wanted to hear,” she whispered as she lowered her head to his crotch.
It was so sensual as I watched breathlessly as her mouth opened wide and she took his stiff cock in her mouth. In one smooth motion she went down on him, his cock quickly disappearing as her face got closer and closer to his crotch. Finally she buried her face in his pubic hair and his entire cock was in her mouth! At barely fourteen, my cousin could take a cock better than most women twice her age or older! I had to admit I felt a sort of pride in me as I was the one who had taught her, using her brother as my “teaching aide”. I remembered the first time she tried to deep-throat him when I thought she was going to puke once she started gagging on it. She was a trooper though, you had to say that about her if nothing else. She kept working at it and gradually was able to take more and more of him down her throat. Being so small, she could only take about three quarters of him in her mouth otherwise so if she was to go all the way down on him, then she had to learn how to take him in her throat. As I’ve said before, Tammy turned out to be a natural-born cocksucker and it wasn’t long after she started that she was already get quite a reputation with Rick’s friends!
“Oh shit, that feels incredible sis!” Rick said as he groaned again, “God I love seeing my cock in your mouth!”
He pulled her hair aside so he could better see his cock buried in his sister’s mouth which also allowed me to have a better view as well. She had to come off of him to breathe but then she was back down on him again, rotating her head around as she took his cock in her mouth all the way once again. Rick took her head in his hands and started to lift her up and then push her back down on him, like he was almost masturbating using her mouth.
“That’s it, suck my dick Tammy ... oh yeah ... suck it hard,” he moaned as his little sister bobbed on his cock with her mouth.
Tammy’s hands were around Rick, holding onto his ass and I could hear his cock making wet smacking sounds as she gave him one incredible blow job. She was clearly loving it as much as he was but in the meantime I was being left to tend to myself - literally. That wasn’t what I wanted at this moment - I wanted some of that teenage cock for myself! Well, if I was going to get it there was only one thing to do since I was sure Tammy wasn’t going to offer me any. I kneeled down beside her and put my head down by hers.
“I want some of that cock too,” I said to her with a grin.
Tammy’s eye looked at me and as much as she could she grinned at me with her mouth full of her brother’s cock and shook her head, going back then to blowing him herself.
“Rick,” I whined, “tell your selfish little sister to share your cock with me!”
Rick grinned and I suppose he had every right. After all, how many guys his age got to have two girls fighting over who was going to suck his dick? Even then, how many had their younger sister and older cousin doing the fighting! About the only thing I think that could’ve been hotter would have been if their sister Kate had been fighting over him with Tammy instead of me. Even I could get off thinking about THAT! Kate was fifteen, soon to be sixteen in November, and pretty hot but I had no doubts she was a virgin - in every way. I don’t even think she has kissed a boy yet!
“C’mon sis,” he said, stroking her hair as she kept sucking away as if she couldn’t hear anything, “Let Kelly have it for a while.”
Reluctantly, Tammy dropped his cock from her mouth, letting loose a melodramatic huff as she leaned back and allowed me to finally taste her brother’s yummy cock. His cock tasted so good and the odor of his crotch was getting stronger by the minute as his lust built up in him. I looked up at him but he was looking at Tammy.
“Get those clothes off,” he told her, “I want some of that pussy.”
After sucking his dick, Tammy was obviously hornier than ever but even so, she still gave him a stern look.
“Ok - but just to play with, no fucking - OK?”
Rick rolled his eyes in exasperation. He must have been wondering what he’d done to anger the gods so badly. Surprisingly, he said exactly what I would’ve coached him to say given the chance - nothing.
Tammy quickly dropped the shorts and blouse she was wearing leaving her in her panties and bra. I smiled as much as I could with his dick in my mouth as I thought to myself that Tammy’s mom must have supervised her clothing today or else she never would’ve had all that underwear on. She dropped her bra straps and spun her tiny bra around to unsnap it and let it drop to the deck on her other clothes. The panties quickly joined the pile leaving my petite cousin standing naked next to us.
“That’s better ... now let me feel that little pussy,” Rick insisted, reaching his hand out between her legs. Tammy leaned back against the table and put one foot up on the chair to give him better access to her fuzzy little cunt. Rick began exploring her pussy with his fingers and eventually got one up inside of her.
“Hmmmmmm, wet already,” he commented, “I think somebody’s horny.”
Tammy just mumbled something but otherwise just let him grope her however he wanted. I didn’t mind, I was enjoying the sensation of his cock in my mouth as I knew where it was going to be before long - even if he didn’t.
“Ok ... now turn around and show me your ass,” Rick commanded Tammy.
She did as she was told and he pushed her on the small of her back saying, “Now bend over, I want a good view of that little ass and tight pussy.”
Tammy leaned over until she was lying face down on the table with her feet on the deck. Rick pushed her legs apart and as I looked to the side, I could see her cute little butt with the fuzz of her pussy poking out for us both to enjoy. Rick reached in and pushed his finger up into her, wetting it with her pussy juices. Then he pulled it out and smeared her wetness around her asshole, toying with it around the edges with his fingertip.
“Rick, what the heck are you doing?” Tammy said, turning her head to look behind her.
“Shut up slut,” Rick admonished her, “If you’re old enough to get screwed, you’re old enough to let me play with your ass.”
“But Rickkkkkkk!” Tammy whined, “That’s so dirty.”
“No it’s not. Besides, I know you took a shower before we came over,” Rick said in reply, “C’mon, spread your cheeks apart for me. Shit, you love showing off your ass any other time.”
Despite her earlier protests, she reached behind her with both hands and pulled her butt cheeks apart without another word. Seeing her showing off, I was literally on hold so far as sucking his cock went. It may have had it about half-way in my mouth, but my attention was focused on what the two of them were doing now. Rick knew I wasn’t into anal so he didn’t dare ask me to do what Tammy was doing but it seemed he had found someone more compliant to his wishes. I’ve never understood the fascination guys have with assholes but they seemed to love sticking their fingers and dicks in them. Rick was no different as sure enough, he reached out and pressed his first finger up against her pink asshole until it went in her up to the first knuckle.
“Ewwww ... Stop it, that feels weird,” Tammy protested.
Other than her words, though, she didn’t let go of her butt, let alone do anything else to stop him, which Rick took as her unspoken permission to keep on going. He pressed his finger in further until two knuckles were now up her asshole.
“Owwwwwww, now that REALLY feels weird,” Tammy said, a little louder this time. Rick twisted his finger around in her asshole and then pulled it back out to the first knuckle before pushing it back in her again. He paused for a few seconds, as if unsure of whether or not he should continue. Tammy seemed to be quickly adapting to the new sensations though.
“Well, if you’re going to do it then do it dammit,” Tammy growled. “Don’t start and then quit!”
Rick grinned broadly and continued playing with her ass but as he did he looked down at me and used his other hand to push my head down onto his cock more.
“Speaking of starting something and quitting, who told you to stop sucking my cock?” he said harshly to me.
It was typical Rick; he liked to think he was the one in charge when we had sex so I usually indulged his little fantasy but sometime he could be a pain in the neck. In reality, it was ME that held all the power since all I had to do was quit sucking his cock and he would be quickly reduced to begging for more. Oh well, if he wanted to think he was the dominate one, I was more than willing to let him so long as he fucked me good! After a while more of this I eventually dropped his cock from my mouth and stood up in front of him. Rick looked up at me and grinned, thinking I was going to ask him to fuck me like I usually did after I sucked his cock. Well, it was true he was about to fuck a girl, he just had no idea what I really had planned for him!
“OK Rick, get your finger out of your sister’s ass and lay down on the chaise lounge so we take care of you,” I suggested.
Needless to say, he didn’t protest and I quickly stripped off my clothes so now all three of us were totally naked out in the open on the deck. Fortunately by being on top of our garage nobody could see us without a telescope on the next hill over. I lowered the back of the chaise lounge until it was flat and then laid out a beach towel over it. Rick sat down and swung his legs up on it and then laid back flat. It was sort of funny the way his cock stood up straight in the air. If the sun had been out we could have used it for a sun dial! As it was, it beckoned for someone to sit on it and so I decided not to keep it waiting any longer than necessary.
“OK ... I’ll ride him while you straddle his face,” I told Tammy, taking charge of the situation.
She nodded eagerly and moved to the top of the chair. I lifted my left leg and stretched out over him. It was a bit of a stretch to straddle the chaise lounge but it also spread my legs wide apart making it easier for me to maneuver his cock into me. I was pretty wet from my earlier masturbating and sucking of his cock so he slipped inside without much protest from my pussy. I dropped down on him and sat on his lap, wiggling my butt on his crotch so I could feel his cock moving in me. I held myself up with my hands behind me on his thighs while I lifted my feet up on the lounge chair beside him letting him get a good view of his cock as it disappeared inside of my bare pussy. His cock was being pulled back making it rub hard against my pussy as I rocked on him, forcing him to slip in and out of me just enough to stimulate the inner lining of my pussy.
“Well ... Like what you see?” I teased him.
He started to say something but just then Tammy decided she had waited long enough and she pulled herself up over his face. She was too short to straddle the lounge chair so she left her left leg on the deck and just raised her right leg up and over his face, pulling his head to the side of the chaise lounge such that his face was nestled in her fuzzy little pussy. She looked at me with a huge grin on her face as his tongue started to work on her pussy, licking her like a cat with a bowl of milk.
“Feel good?” I asked her.
“Oh yeah!” she said with a giggle, “Tickles a little bit actually.”
Tammy started to giggle more and squirm as her brother licked her pussy even faster. In the meantime I was rocking on his cock, letting him slide a little more in and out of me now. I could have gone on all day like this but at some point a thought came to me and I couldn’t wait another minute to put it into action. I slipped off his cock and stood up. Tammy looked at me with a question in her eyes.
“Don’t stop - I just have to go get something!” I said as I hurried into the house where I went up to my parents room and quickly rummaged through their dresser until l found what I was looking for. I grabbed it and rushed back down to the deck where I saw Tammy hadn’t wasted any time. She had gotten up on the chair and straddled him such that now they were in a 69 with her sucking his cock while he continued his work on her pussy. I should have known she wouldn’t be able to resist seeing his cock just standing there without going after it. I watched them silently for a few minutes. I was tempted to go back in the house and get my camera God they looked so hot together! Seeing this young girl on top of an older teenage boy was erotic in and of itself. Knowing she was his sister just made it all the better!
It was obvious that Tammy had been practicing quite a bit as her technique was better than mine when I was her age. Of course, I didn’t have an older cousin giving me hints either although my mom did a pretty good job of teaching me how to suck a guy well considering she only had a dildo to demonstrate with. As it was, I was so mesmerized by the sight of my cousins getting it on that I just stood in the doorway, playing lightly with myself. Finally, I knew that if I didn’t move on I wouldn’t be able to stop touching myself and I had other plans in mind for this afternoon. I licked my pussy finger off and then stepped back out onto the deck.
“OK you two, take a break, I have an idea for a fun game,” I announced, “C’mon, get up for just a second.”
Neither of them seemed too enthused about pausing for even a minute from what they were doing but reluctantly Tammy lifted her head from her brother’s crotch and the two of the stood together to see what was on my mind. Even so, Tammy still had one hand holding her brother’s cock, as if she couldn’t stand to be separated from it for even a minute. I took the cushion and beach towel off of the chaise lounge and laid them out on the deck.
“There, that’s better. That lounge chair is just too hard to get comfy on,” I said with a theatrical sigh of relief. “OK Rick, assume the position.”
Rick laughed at my poor acting job but he followed my directions and laid down again. I was pleased to see he hadn’t softened up one bit but then, that would have been difficult with his sister’s hand on him the whole time! Then I then opened my hand to show what I had been hiding since I came back - my dad’s sleeping eye shades, the type they give you on airplanes for covering your eyes when you try to go to sleep. I don’t think either of them recognized what they were right away as they had been crumbled up inside of my hand but when I reached down and slipped them over Rick’s head, they both murmured as they realized what my plan was. Fortunately, Rick didn’t protest as I pulled them down, covering his eyes and effectively blindfolding him. Then he seemed to think about it some more and started to protest but I shushed him and he stayed quiet after that...
“OK, the name of the game is ‘Who AM I’ and you have to guess which of us is doing something to you,” I announced.
Tammy looked at me with a “what are you talking about” look so I explained further. “One of us will do something to Rick and he has to figure out which of us it is.”
Rick cut in saying, “And what do I get if I’m right?”
I kicked him gently but enough to let him know he was being a goof. “Frankly, I think the whole game is your reward so just shut up!” I said, grinning at Tammy who was now smiling as she realized what the game was. “OK, you have to be still now and see if you can figure out which of us this is - no hands either!”
I looked at Tammy and silently pointed to myself to indicate to her I wanted to go first. She frowned but nodded in agreement so I quietly kneeled down next to him and kissed him on the lips. He responded and our tongues met briefly before I pulled back and stood up.
Rick licked his lips as if he had just tasted a great dessert and said, “Shit, that was easy - Kelly; nobody tongues me like that.”
“Score one for the goofball,” I announced.
Tammy raised her hand and I debated whether she could go or me again. Should we try to fool him or would he expect us to swap back and forth or what? I couldn’t decide one way or the other so I decided to let Tammy have her way. I nodded and so she was the one to kneel down this time and she gently sucked the left nipple on his chest. She licked it pulled on it with her teeth gently and then sucked it hard like a baby with a nipple on a bottle. I think she would have gone on for quite a while so I tapped her on the back and she reluctantly backed off and stood by me, waiting for his verdict.
“This is too easy - Tammy,” he declared.
I asked why he thought so and he responded saying, “Kelly has never been a big fan of sucking my nipples so it had to be Tammy.”
I’d never really thought about that before but he was right. I didn’t suck a guy’s nipples normally unless he asked me too. It’s not like I ever sat down and made a conscious decision NOT to, I just never got into it I guess.
The score was now 2-0 in favor of Rick. This called for a new game plan! Tammy indicated she wanted to go again which seemed reasonable as I figured Rick would expect it to be me the next time. This time she remained standing and used her foot to play with his dick. She rubbed it against his stomach under the ball of her foot and then used her toes to run up and down the shaft. Rick didn’t even wait for her to finish this time.
“Tammy again!” he crowed, “Come on, you guys are too easy. Everyone knows Kelly hates anyone playing with her feet and I’ve never seen her use hers for anything but walking and standing.”
Gee, I didn’t suck nipples and now I had an anti-foot fetish apparently. I hadn’t expected this game to point out all my hang-ups!
I figured it was about my turn but then I thought that was undoubtedly what Rick was expecting since he would figure there was no way I would let Tammy have all the fun. Normally he would’ve been right but today I had a special idea in mind. I looked at Tammy, pointed at Rick’s cock, and then pointed at her pussy. She knew immediately what I was referring to and her eyes opened wide and she mouthed a huge “NO” to me. She folded her arms defiantly and stood there glaring at me, appearing to be completely resolute in her decision. Fortunately, lately I was getting to know my horny little cousin even better than she knew herself. Seeing the way she reacted to getting laid from the first time and how quickly she was willing to let another do her the next day, I knew that she had a natural obsession to be fucked. I could relate to that as I felt the same way after my first time except I tended to stay more with one guy at a time. In the end, Rick had a dick and I knew all it would take was a little prodding and her pussy would make the decision for her!