A few weeks passed since my girlfriend Anna and I spent the weekend at her family home. It was a fun trip and a few interesting things happened with Anna's younger sister, Amalia, I spent days wondering how much of me she saw, how much of her sister sucking my cock and getting soaked in my cum she saw, and recounting over and over again how much of her young nude body I saw.
I was sitting at my desk at work and thinking about how shapely her ass had been when my phone chimed with a notification. Fuck, I hate when I flip that switch accidentally and take it off vibrate.
A Snapchat notification from Amalia.
My heart speeds up as I fumble to get my phone open and hit the little pink square, and I nearly drop my phone. Just as I had been thinking about it There on the screen is Amalia, my girlfriend's teenage sister, standing in a dressing room with a floor-to-ceiling mirror.
She was in the classic pose showing off a great ass -- an over-the-shoulder shot with one leg extended to accentuate the ass - and my god what an ass this girl has. Years of sport have left it round and taught. The kind of ass you want to bury your face in it for a week and your cock in it for a month.
Her black Adidas tights were pulled down to the back of her knees fully exposing her perfect, pale cheeks and her smooth thighs. She held the hem of her shirt up with her free hand, showing her back and her sides with just a hint of the bottom of her small breast showing.
She had set the timer of the snap to infinite, otherwise I may have missed the words she wrote at the bottom.
"See you soon xo"
I wasn't sure what to do, I badly wanted to take a screenshot. This is definitely crossing a lot of lines, but I convinced myself it's harmless and those pictures probably weren't even meant for me. It was probably best just to not even mention it or respond I thought.
Another Snap from Amalia buzzes my phone.
This is probably her freaking out about having sent her sister's boyfriend a nude I thought.
It's another pink square, I press it expecting to see an apologizing or tearful Amalia; instead, I see Amalia on her knees fully nude. She held her oversized iPhone in front of her fave, showing just the cascade of blonde hair that fell across her shoulders. The elbow of the arm holding the phone pressed into her breast hiding one nipple, while her other arm angled across to hide the other. I followed the pale arm diagonally down across her toned abs, to where her hand cupped her pussy keeping it from view. Looking closely I saw she had her middle finger slid two knuckles deep into what I imagined to be her very tight, very wet, teen pussy.
The text banner at the top of the image read:
"I forgot you prefer your girls on their knees"
This time I took a screenshot. I waited for a message telling me to delete it or how it wasn't meant for me, but none came.
As I sat there staring at the image on my phone - Anna called me, the caller ID picture I took of her (fully clothed) on a trip we took to California, replaced the nude photo of her younger sister on her knees.
"Hey babe," I answered the phone with a shaking voice. She didn't notice. We talked about our days and dinner plans and finally, she told me something that set my heart pounding.
"My sister is going to come stay with us this weekend. She's visiting that football school on Friday and wanted to spend the weekend in the city."
"Oh, cool. I don't think we had any plans?"
"I have to work this weekend. I'll try to get out of it or at least get out early, but I'm not sure that I can."
"Aw, that's a bummer."
Anna had returned to her job as a waitress had a fancy restaurant downtown. It paid pretty well, but it kept her out late on the weekends which left me a bit bored and lonely some nights.
"It might be up to you to keep her entertained. She has some friends here already but I don't want to just set her loose on the town."
I felt like I was choking as my heart caught in my throat.
"Sure, I can be around."
"You're the best. Don't worry, I'll make it worth your while." I could practically feel her mischievous smile through the phone.
...
Friday afternoon rolled around and I headed home from work. Anna had texted me that when she left she put a key under the mat for Amalia, but didn't expect her at the apartment until later in the evening.
I turned the key in the door and walked into the apartment. The hallway was dark and I b-lined straight into the kitchen to grab a beer out of the fridge. Just after I cracked open the can, I heard it. A faint gasping and moaning coming from down the hall. I stuck my head out of the kitchen door and saw light leaking from the our spare bedroom.
As I got closer the moans louder. The door was closed a little more than halfway I pushed it open, and the hinges squeaked slightly. There on the bed in our spare bedroom was Amalia, my girlfriend's 18-year-old sister. Knees tucked up in the air with her legs spread wide, one hand guiding a small purple vibrator slowly in, out, and around the cutest little cunt I'd ever seen. The paleness of her form was broken up by the flushed pink skin of dainty lips waxed or shaved to full smoothness. I could see how wet she was from across the room as her six glistened and glowed in the afternoon light streaming through the window.
Her other hand she used to pinch one of her small, smooth pink nipples making her moan loader this time. Her tits were two smooth round mounds barely protruding from her chest as she lay flat. Her pale skin was flushed with hues of pink from her chest up to her face. She pushed back her head and moaned again as she circled her clit with the tip of the vibrator before she pushed it back in and held it there.
