Best Mates Little Sister
Copyright© 2025 by Jalapenos2468
Chapter 1
Young Adult Sex Story: Chapter 1 - A timely visit home results in a greater reunion than anticipated
Caution: This Young Adult Sex Story contains strong sexual content, including Ma/Fa
The feeling of nostalgia was rife. Rolling back into town, the childhood memories were riding shotgun in the car. The smell of sunscreen, the tangy odour of chlorine, the ‘click click’ as the push bike wheel spins you toward today’s adventure.
It had been years since I had been back to my hometown.
I was back to help my parents move into a smaller unit near their house.
Downsizing had become an economic and logistically sensible move. They no longer needed four bedrooms, a large yard, and a garden to try and maintain.
Likewise, they stood to gain a healthy cash boost with the move to a cozy apartment.
Unfortunately, the move was partly done, with the house in a mess and the apartment without beds, refrigerators, and the like, leaving both places as unattractive overnight options.
I hadn’t caught up with my friend Tom from school in person for some time, so it stood to reason that I could crash at his place like old times.
He’d just finished his degree and internship and was on the hunt for a job in his graphics IT specialty. Like many our age, he had taken the millennial step of moving back home for a while to get his savings to a healthier state while he established himself before looking to buy a place for himself.
This was no longer seen as a step backwards, given the effects of the pandemic and the economic times that followed. Besides, I reasoned that I was back, so a sleepover with my friends would complete the hometown experience.
We’d been friends since the first day of school. Unlikely mates, but mates. We were completely different to look at. Tom, with his short and podgy build, fiery red hair, and temperament to suit, The only benefit of his short temper was that it was never raised at me; however, many others came to see it at their expense if they slighted me or our other mates. I was taller, with blonde hair and a reasonably muscular build. I hadn’t touched a weight until university but had developed good habits with exercise and diet and was proud of my appearance. I now stood just over six feet, weighting about 200 lbs.
Growing up, we’d be in each other’s pockets. We’d spent our childhoods at each other’s houses, with him enjoying my older brother’s banter and me putting up with his little sister and her friends as they came and went.
In our early thirties, we’d experienced the natural distancing people go through after high school. We’d eventually go to different universities after working a couple of years in different towns. Then the process of getting through the student years added more distance to that. We chatted over text and the phone from time to time, but as soon as we were back in the same room, time stood still--as though we’d never been apart.
He asked after my family--the parents and my brothers. All is going well, as would be expected. We talked about my parents moves and how each of the brothers had moved to different parts of the country, their various careers, and their families.
He was virtually a single child. He had a sister who was a lot younger than him. Their parents had welcomed an ‘oops’ baby who was twelve years younger than him. Being such a great age difference meant that we’d had next to nothing in common growing up. She was sweet with a great sense of humour. I’d always enjoyed making fun of her about her boys and how his brother and I would have to deal with anything that looked her way. She always had friends over or was over at her friend’s place, which suited us just fine.
That was years ago now.
Apparently, she’d turned eighteen a few months ago and now had career plans of her own.
“Fuck!” I exclaimed. “How can she be that old? That means we’re thirty!”
“I know, mate,” was his reply, laced with self-pity. “Time waits for no one, hey.”
We headed out to sit around his backyard pool and have a beer while we had a catch-up. His parents came out for a quick hello and catch-up, then left us be while they ran a few errands in town.
A car pulled up out the front. A few minutes later, out strolled his sister. She grabbed a beer and cracked its top.
“Well, well, well, look who’s back!” She exclaimed.
“How are you, Mabel?”
She had grown up--that much was for sure. Gone were her childish hesitancy and lack of confidence. Her freckles had stayed but were now on a gorgeous face with a warm smile and sharp, bright eyes.
“I’m going well. It’s fantastic to see you. It’s been ages!”
“Yeah.” I agreed with her. “I can’t believe how long it’s been. I mean, look at you! Jesus!”
She smiled, then laughed.
She wore an oversized white sweater that she had tucked into her high-waisted blue dress. This unlikely combination served to show her ample bust and narrow waist at the same time, all in a tasteful and unassuming manner. It was classy.
She had her hair pulled back into a loose ponytail with the front half out and draped either side of her face. Her hair was red, but much darker than that of her brothers. More autumnal than spring.
The girl I used to make fun of is now intimidatingly attractive.
The three of us continued to chat while dangling our feet in the pool. Mabel was heading out that night for a friend’s birthday. Tom and I planned to go out for dinner and a couple games of pool. There weren’t that many places to go in town, so it was fairly likely we’d see each other at some point. This was comforting for their parents, who were having problems letting their daughter be the grown-up she was.
After her beer, Mabel disappeared inside to get ready to head out. Her friend Jennifer came over to join her, while Tom and I stayed outside to relax and give them some space. Jennifer was one of Mabel’s childhood friends. She was very quiet and shy but enjoyed Mabel’s company and seemed to be able to bounce off her bubbly personality to the betterment of her own. I believe her family was fairly involved in some sort of church. She always had long hair that was worn out and wore very conservative clothes. She was the oldest of Mabel’s friend group, but she didn’t look or act like it. Her hair was long and blonde and had a natural curliness to it.
Her body was straight up and down, and she must have weighed around 120 lbs. She stood the same height as Mabel but just didn’t have the same curves or athletic attributes.
She was lean, but nowhere near unhealthy. Her face was friendly but left you feeling as though she always had something on her mind. Distracted, but not by choice.
Her words to others were minimal, but it was nice to see her come out of her shell when Mabel was with her.
My parents had paused their move that lunchtime to give themselves a rest and didn’t want me doing it on my own, so I’d arranged to start again in the morning.
Tom and I had a couple more beers over the next hour or so, then made plans to head out and catch up with some other friends for dinner. We did just that, congregating in a local restaurant for dinner before moving on to a local bar for a few games of pool and banter like it was 15 years ago.
The place we were at had a bar out the front, pool tables down one side, and a dancefloor and bar out the back. We’d settled into one of the round tables near the bar, adjacent to the pool tables.
Pool games took place while we chatted and watched the various sports on the screens. We were all at a similar point in life. Some had married, one had some kids, but all in all, it all equalled out, and we were grateful for the chance to unwind. I’d just come from a fairly long-term relationship that had ended on good terms. I wasn’t looking for anything.
Mabel and her friends came through the front bar on their way out the back to the dancefloor. She stopped to say hello to her brother. She wore a tight black long-sleeve cotton top with a deep V neckline and a pair of figure-hugging jeans. I was sitting next to Tom when she dragged her hand along Tom’s back when she greeted him. Her hand moved across to my shoulder, and she squeezed it while she spoke with him. The time her hand was on my shoulder seemed excessive, given that she was talking to her brother.
She was out with a half-dozen of her girlfriends and a few male friends as well. I recognized a couple of her friends, including Jennifer.
One of the guys, according to Tom, had been hitting on Mabel for a while, and she had kind of started to see him. He came across as a little bit arrogant to me. Too brash--like he was trying to compensate for his own lack of confidence. Anyway, they went on their way, and we kept to ourselves for the rest of the night.
At one stage, I looked across to the dancefloor to see Mabel dancing with her boyfriend. My eye caught hers, and she spun around to face me, with her boyfriend’s back to me. She smiled. Her gaze stayed with mine for far too long. I broke it off and didn’t look back for the rest of the night. I had an uneasy feeling. There was a stirring in my stomach.
As the night continued, Tom fell further and further into our old high school ways and had far too many drinks. He was having a great time, but he descended further and further into drunkenness. Our best appeals to him to slow down were waved aside. I’d had too many drinks to drive, but I was still in control and able to make sensible decisions. At night, I ordered us a cab and piled him and me into it. I had no idea what happened to Mabel and her friends, but they weren’t my responsibility. Their evening had been incident-free, as evidenced by the laughter and dancing that were emanating from the back section of the bar.
Getting Tom into the house without waking his parents was a job well done. I got him changed and into his bed without issue. I was feeling a little drunk myself, hence why it had taken me so long to get him organized. We’d started with laughter and jokes when we first got home, but he quickly got tired, and I ended up closing his door after turning his light off while he slept.
The effort I had put into quietly closing his bedroom door was evaporated by two car doors slamming outside their house. Mabel had arrived home. Apparently, Jennifer was staying over as well.
They made their way in as I walked down the hallway to the spare room I was staying in. This was a converted garage at the opposite end of the house.
“How drunk is he?” Mabel enquired.
“Sorry, Mabel, he is not going to be pretty tomorrow.”
“Ah, it’s not your fault. He deserves what he gets. How are you?”
“I’m fine. A bit happy, but not too bad.”
“Ha,” came her reply. “I know what you mean.”
“Well.” I continued, “I’m off to bed. Sleep well, you two.”
Mabel seemed to think for a second. “Urh, I need a shower first. Goodnight.”
Mabel followed behind Jennifer as they made their way past me. When she walked by, Mabel dragged her hand across my chest without saying anything.
“Fuck me.” I thought to myself. “What is happening here?”
I headed off to the far end of the house and got myself sorted for bed. I usually sleep in underwear, but the alcohol had wiped out my inhibition, so I slipped into bed naked and tried to drift off to sleep.
About five minutes after finally getting into bed, my phone dinged. A messenger message lit up my screen.
Mabel: Are you asleep?
Me: No
Mabel: I’m coming down to see you. Stay quiet.
Me: Umm, ok?
I’d heard the shower running up the far end of the house and thought she’d just head off to bed like the rest of us. I had no idea what she wanted, but I pulled the bed covers up to make sure I was well and truly covered up. I didn’t want my best friend’s sister to see something she shouldn’t and then tell him I was hitting on her.
The door slowly and gently rolled open.
I’d turned off the lights, so the room was in total darkness. To my surprise, no light was turned on, nor was there a phone flashlight, as the door closed just as quietly and gently.
Being in her house, Mabel would have known the layout of the room. There was a double lounge chair as you entered the room, with an office desk and laptop set up opposite. The bed was at the far end of the room, with a small modular closet facing it and a deep-sided single lounge chair in the far corner, facing the bed and the door.
I heard muffled footsteps as she moved down the carpeted floor. She sat on the edge of the bed.
I sat up and propped a pillow against the bedhead, keeping the bed covers tight across my waist. I couldn’t make her out, only her outline, but I could smell her. Shampoo and body wash drifted across the room. She smelled sweet and clean. In my head, I could see her hair out, ruffled with a towel, but hanging with her red curls cascading down her back and shoulders. I didn’t know if she was wearing PJs or a towel, but again, I let my imagination go wild as she spoke for the first time.
“Hey, I know I’m a bit drunk, but I know I’m not going to sleep very well.”
“What’s up?”
“Seeing you back here. It’s had a crazy effect on me.”
“What do you mean? Is everything okay?”
“Everything’s fine. You’re back here, though. I don’t think you know how much I used to think about you. Actually, I don’t think you know how much I used to fantasize about you.”
“Jesus Mabel! We shouldn’t be having this conversation.”
“I know, but you’re here for one night; I’m eighteen now. I think it’s only fair that you know.”
I know I said we shouldn’t be having this conversation, but I’d seen her today. The way she looked in that oversized sweater this afternoon, that black shirt tonight, her smile, her ass. Fuck, she was gorgeous.
My cock twitched.
I continued, “What about your parents? Your brother? Jennifer?”
“My parents sleep like rocks and are both deaf anyway. You saw the state of Tom. You won’t see him till mid-morning tomorrow, and Jennifer is having a shower now.”
I was pretty drunk still, but my cock continued its journey upward as it hardened even further. I desperately wanted to adjust it, but I didn’t want to show Mabel that. She was still my mate’s sister after all. Twelve years younger. Fuck. I was trying to talk myself out of this scenario, but my brain kept countering my internal arguments. “She’s hot as fuck,” I thought to myself. “She’s sweet, and she’s right. I am only in town tonight.”
My eyes were starting to adjust to the dark. I could see that she did indeed have her hair out, and it was wet. It was strewn down her back. Her curls cascaded past her shoulders, which were clad in long-sleeved button-up cotton pyjamas.
She continued, “Why do you think I’m not still out? My boyfriend was pissed when we got going so soon after you and Tom. Lucky Jennifer had her car. She was happy to drive us home. She has to be up and at some family church thing early. It wasn’t an accident that I touched you at the bar. Besides, I saw you when I was dancing. You had some impure thoughts as well, didn’t you?”
“That doesn’t mean I’m going to do anything about it, though.” I was trying to be the mature, reasonable one. My cock disagreed as it started to throb. Nearing full erection.
“I know, but fuck, I’ve thought about it in the past. Can you run your hand through my hair for me? I think it might be a bit knotted.”
She continued, “Here, I’ll cover your eyes, so you don’t feel like you’re touching your best friend’s little sister.”
Mabel pulled one of the thin pillows from the other side and laid it across my face, covering up my sight of her in the almost dark room.
“Oh fine.” My internal argument was somewhat over.
I felt her shift and move on the bed. It seemed that she moved more than I thought she would have to in order for me to run my hand through her hair. Her hand grabbed my wrist and guided it to where her head was previously.
Things had changed.
Rather than feeling the wet red locks that draped her gorgeous face and trickled down each shoulder, I felt her take my hand and bend my wrist backwards so that my fingers faced the ceiling. My fingers then ran across her stomach. I felt her pull her pyjama pants out of her body, and my fingers landed squarely on her pussy.
Oh fuck. Now my cock was hurting; it was so hard.
She didn’t feel wet until I instinctively straightened my middle finger, so it ran directly between her labia. She gently moved back and forth a couple of times, then it hit me. My finger slid straight backwards as her moisture hit my finger. She continued this ever-gentle movement another couple times before I couldn’t take it anymore. I curved my finger upwards, and it slid easily inside her pussy. It was wet. So wet.
There was no hint of hair anywhere. Either she waxed or she just shaved in the shower literally five minutes ago.
She leant down next to my ear and whispered, “Oops, I forgot. I don’t have any hair.”
Mabel was kneeling next to me on my bed as I lay on my back with a pillow over my face. My finger was sliding inside her completely bald pussy.
It was tight.
It was warm.
It was smooth.
It was wet.
As she continued to gently ride my middle finger, I gave up any hope of hiding my throbbing cock, so I threw caution to the wind. I brought my thumb forward and placed it up the front of her pussy, where I was able to locate her clit. By rubbing my thumb down near my finger where her pussy juices were, I was able to then bring it up to her clit and start to gently massage it along with my middle finger thrusting inside of her. The moisture on her clit meant my thumb could easily slide over her bud, where I could flick it gently side to side as her thrusting on my finger increased tempo.
For the first time, I felt Mabel lean forward and reach for my cock. She exhaled when she felt the hardness through the bed covers.
I brought my ring finger up next to my middle finger and slid it inside her as well. Having two fingers inside her gave me better strength, and I was able to insert them both into the knuckle and start rubbing the front wall of her cunt to stimulate her G-spot while my thumb continued to flick her clit. She reacted with a quiet groan as she started to fuck my fingers.
She grabbed my cock through the covers. It was generally about seven inches--I bit more if I was really horny like I was now. The best thing about my cock is its girth. It’s thick. Two thick veins run down and around my shaft to my balls, which I keep shaven. My circumcised head has a thick, full shape with a slight curve in the shaft.
Sensing the size of my wand, Mabel threw the covers to one side to expose my aching cock. Her small hand wrapped around its shaft and started to gently stroke it up and down. Her second hand cupped my shaven balls as she squeezed and massaged them.
She propped herself back to her original kneeling position before lowering her face to my ear again.
“One more favour. Can you kiss me on the lips?”
“Sure.” I replied. I was all in now.
I felt her stand up as my fingers slid from her manicured pussy and her hands ungrasped my cock. Figuring she was spinning around, I expected her to lay on top of me or next to me. I heard her doing something as a gentle noise rang out. The sense of movement came as the bed wriggled a little under my naked body. The pillow was still in place, so I couldn’t see what she was doing.
I felt the pillow slide to one side. My eyes, adjusted to the dark now, opened to see the most gorgeous pussy and ass lower themselves onto my face. Mabel’s wet cunt pressed gently against my mouth. She sat up slightly to take her weight through her legs as she lowered herself more onto my waiting tongue.
She bent her back to whisper to me again. “Sorry, probably not the lips you were thinking of.”
She tasted so sweet. I was able to run my tongue up her entire pussy. Given she was so small, I could flick her clit with my tongue, then slide it slowly down her pussy and press it inside her for a couple of thrusts before moving slowly back to her clit for a few flicks. Because she was fully shaven or waxed, this process was made way easier, and the sensation of smooth skin was absolute bliss. She still smelled of body wash and was so wet. My cock was now sticking up in the air like a power pole, her pussy on my face making me hornier than I thought possible.
Mabel widened her kneeling so as to press her pussy harder against my tongue. In turn, I brought my hands over and grabbed both her ass cheeks to pull her onto me tighter again. Her skin was blemish-free, firm, and smooth. Her asshole was lighter than the surrounding skin and looked tight.
As I grabbed her ass, she bent forward, settled onto her elbows, and grabbed my cock and balls again.
Without notice, she pulled my cock up towards me and took one of my balls into her mouth. Her other hand gently wanked my thick cock as she gently sucked one of my balls. Her other hand wrapped around the base of my ballsack and massaged them as she wanked my shaft and sucked my ball.
The feeling of her mouth around my ball and her hands on my cock and ballsack was something I’ll never forget. This girl, my friend’s sister, was so much younger than us. This gorgeous, hot, smart teenager that I’d known for her whole life was now sitting on my face, sucking and wanking at me.