Sister's Lessons

As always in the afternoon, her classmates Anton and Sergey came to Yana's house. The trio of students closed themselves in my older sister's room and for me the sweet torture began....

My sister Yana was four years older than me, studying at the same medical school where I entered this year, after finishing my undergrad studies. Jana was a very liberated girl, the kind of girl they call a hustler. Unlike me.

I don't know who I was like, but I wasn't just shy, I was obsessed with modesty. Compared to my peers, I was a white sheep. In my mid-nineteen years, I was still a virgin, not quite, but almost a virgin. My friends had already changed partners several times, and I hadn't even been kissed as an adult.

I was shy of male attention. Evaluating looks of men put me in a stupor, I blushed and shrank. But I had no reason to be shy. I knew that I had an attractive appearance and face and body. But I couldn't help it. To hide my attractiveness, I dressed in baggy clothes, hiding my slender legs and lush breasts. I hid my face, specially bought zero glasses, and combed my thick, shoulder-length hair into a ponytail. From cosmetics I used only lipstick.

Sometimes in my room I would undress completely and, letting my hair down and throwing off my stupid glasses, I would assess my reflection in the big mirror on the closet. Young taut body, thin waist under three-dimensional breasts, with pea-sized nipples, slightly sloping toward the elbows, sloping hips, smooth pubes, smooth legs, round moderately lush ass. It was almost perfect. My face was perfect, too. Green eyes, small nose, expressive lips. I liked the mirror reflection of my body, I wanted to stroke and caress it. That's what I did.

For several years with my hands, I learned to please and release my sexual tension. You can't go against nature. I was not ignorant, the internet told and showed me a lot. In my heart I really wanted to know these human joys. But, just noticing a certain male gaze, everything about me shrunk, and I tried to quickly retreat. And I couldn't do anything about it.

I knew that my sister was a sexy, sexy girl. One day she'd lock herself in her room with Anton, the next day with Sergei. Our parents were at work during the day, and there was no one in the apartment but me. I knew perfectly well what was going on behind the door of my sister's room. I would sneak to the closed door and eavesdrop, coming out from the room certain languid sounds of pleasure and slapping bodies.

The sounds made me shiver, and as I listened, I ran my hand under the fabric of my panties. Caressing my wet clam with my fingers, I imagined that I was there, too, in my sister's room. The discharge came quickly, trembling with emotion, I tried to restrain my moaning, realizing that the sounds through the door were heard not only from one side.

But when Yanka began to lock herself in her room not only with one beau, but with two at once, with Anton and Sergei, I, from guesses and louder sounds, just trembled from excitement. Standing at the closed door of my sister's room, it was no longer enough for me to discharge once. Twice, or even three times, I was resetting my erotic tension.

One afternoon, when Jana was out, I snuck into her room. I really wanted to see where her battles were taking place, to be in the atmosphere of this debauchery.

Next to the bed on the nightstand was a large red cardboard box. I looked into it with curiosity. When I opened the lid, I gasped in surprise. The box was filled with sex shop products. I'd never been to such stores, and even passing by, I blushed with embarrassment. But on the internet there were a lot of advertisements of goods from such stores, and with interest I considered such offers.

The box contained about a dozen dildos, a few toy handcuffs, tubes of lubricant, a bunch of condom packs, and some other things I didn't understand.

Taking the top large black dildo in my hand, I groped it. The silicone thing felt good to the touch. I really wanted to possess such a thing. I couldn't buy something like that because of shyness, but if I stole it? Going through the contents of the box, I found several phalluses at the bottom, not even unpacked yet. Thinking that Janka would not rnotice the absence of one of so many, I decided to steal one of them.

Before going to bed, I unpacked the package. The dildo was a pale pink color made of elastic silicone. Not as big as the black one I'd first found in my sister's box, but quite similar to the real thing. Slightly curved, with a large round head with a hole at the tip. The package came with two batteries. I put them in their proper place. I pressed the button, and the imitation dick vibrated slightly in my palm. Its tingle traveled down my arm through my body in a pleasant wave. I pressed the button again, the tingle increased, the next press increased the vibration even more. Of the three levels, I liked the first one better with a slight shiver.

In the palm of my hand, the silicone quickly warmed up and became even more like a real male organ. I pulled up my nightie and ran the tip of the vibrator through the curls of my pubic hair. The touch gave me a pleasant twitch, and I involuntarily moved the tip downward.

The round head slid into my pussy. It was incredibly wet. That vibrating toy was definitely turning me on. I unconsciously screwed it into the depths of my pussy. The vibrations began to spread through the depths of my body in glorious streams. The vibrator felt so much nicer than my fingers. I shoved the shaft in even deeper. I wanted to shove it completely into the wet depths. But the silicone head inside me hit an obstacle. I realized what was in the way of the vibrator.

Getting more and more turned on, I began to move my hand, making shallow progressive movements with it. Each plunge ignited a blissful fire. Moaning loudly, I pushed the vibrator even harder inside me.

With a burst of orgasm, I first howled with pleasure and then cried out from the sudden sharp pain. At the moment of climax, I involuntarily thrust my hand in, or I bent toward it, piercing my virgin barrier with the phallus.

Horrified at what had happened to me, I pulled the vibrating toy out of me. There were dark pink stains on the light pink silicone. From that moment on, I was almost no longer a virgin.

Now after listening to the sounds from my sister's room, I would rush to my room where my pink friend was waiting for me.

***

After waiting half an hour after Anton and Sergei arrived, I crept to the door of my sister's room. I could tell by the sounds coming from there that things were in full swing. The sounds were louder than usual. I looked closer and realized why. The normally tightly locked door was slightly ajar. Jana had been negligent with the door being left ajar.

I wanted to take advantage of her oversight and get a peek at what was going on behind the door.

I pressed the door gently with my hand. It suddenly moved easily and creaked treacherously.

Realizing that I might get caught, I quickly rushed to my room. But the picture, which I had seen for no more than a second, stood before my eyes. One of Jana's boyfriends was lying on his back on the bed, Jana was on top of him facing him, and another guy was lying on her back. The naked trio was on the bed with their backs to the door, my gaze fixed on the two men's penises in my sister's body. One in her vagina, the other in her anus. I've seen such variations called sandwich or dupel on the internet more than once.

- Oh, Yanka's got it! - I thought to myself with admiration and horror at the same time.

I thought that my intrusion was not noticed. What I saw made me all excited. I climbed onto my bed, pulled up my skirt and removed my already moistened panties. I pulled my pink friend out of the bedside table. No more than fifteen seconds, and I vibrated with the vibrator inserted in my pussy. The discharge didn't quite calm me down, I was still aroused by the image I'd seen. I began to run the rubber head over my slit again. Remembering what the trio was doing, I brought the head to my anal hole. The round head was slippery from my moisture, also the lubricant was dripping from the vagina down onto the hole. I quietly and slowly began to apply pressure. The trembling head of the pink friend began to push tightly into my cavern. I enjoyed the vibrating touch. But after three centimeters, I stopped, afraid of unfamiliar sensations and consequences. I returned the phallus to my pussy, driving it to its full silicone length. After a couple minutes of my manipulations shook in a new orgasm.

In the evening at dinner with my parents I thought that my sister was looking at me strangely. Her gaze made me squirm, suspecting that Jana had noticed me peeping at her.

After dinner, there was a quiet knock on the door of my room, and Jana came in. I looked at her fearfully.

- Yulia, what are you doing? You're a grown-up girl, and you don't know that it's not good to peek! - sternly spoke to me by my sister.

I silently tensed up, dumbly lowering my eyes. Yana continued to reproach me, at some point I broke through and cried.

- Yulia, why are you crying? Like a little girl! Let's talk in a mature way!

But I cried even more.

Yana sat down next to me on the edge of the bed, slightly put her arm around my shoulders.

- Yulia, calm down! What's wrong with you?

- I don't know what's wrong with me! You are living all the way, then one, then the other, then two at once ... I'm nineteen years old and I've never even had a real kiss...

- Who's stopping you? You're so pretty! You're so beautiful, you probably have no shortage of men! - my sister soothingly stroked my back.

And I burst, I told my sister about all my problems, about how shy I am, about my fear of male attention, about how I eavesdrop at her door and then self-pleasure myself. I also told my sister about the dildo I'd stolen.

After talking it out, I calmed down a bit, resting my face against her chest, stopping crying.

- My poor sister! I didn't even realize you were going through this. Something must be done about it! I'll think of something to help you! Lie down and try to sleep!

Just before my sister left, I pulled out a pink dildo from under my pillow and handed it to Jana.

- Jana, I'm sorry I stole it!

- Okay, I forgive you! And I'm giving it to you! Use it for good! - she joked before leaving.

***

- Yulia, hi! - Yana came into my room when I came back from the institute: - I have Anton and Sergey in my room now. If you want, I'll open the door, and you can watch us.

I stared at my sister in surprise.

- Well, you wanted to peek yesterday, so look, it may be useful in the future! - Jana said conspiratorially: “But not right away, in about fifteen minutes, when the show will be in full swing.

In exactly fifteen minutes I was at the door of my sister's room. The door was ajar by about five centimeters, from which a quiet melody was pouring out.

With a pounding heart, I peered through the opening.

The three students were completely naked. Anton was lying with his back on the bed, Yana was also on the bed on her knees facing the door, with her hand on the bedspread, and sucking vigorously on his cock. Sergei was behind Jana on straight legs and was rhythmically moving his pelvis toward the woman's upwardly exposed ass. I couldn't see the actual insertion, but I could see what he was doing.

I watched the action on the bed mesmerized. Jana looked at the doorway, our eyes met. She winked at me and theatrically continued to fondle the man's cock. Her lips and tongue walked along the shaft, then her mouth hooded the glistening head. Jana's face slid down, swallowing the shaft all the way down to his testicles, which she crumpled with her free palm. Then she let the male organ out of her mouth and licked the straining organ again.

My hand involuntarily went under my skirt, then under the elastic of my panties. My fingers found the moist cleft. Looking at the three students fucking, I began to masturbate. When Anton and Sergei changed places, I had already had a sweet orgasm.

I continued to watch the performance. I had seen Anton and Sergey more than once in the company of my sister. But they were always dressed. And now I saw them completely undressed and in action. Yana had good taste, the young men were very handsome in face and body. Anton was tall and slender, athletically built. Reddish short-cropped hair, gray, expressive eyes, thin nose and a strong chin. Sergei was of medium height, quite thin, but his face was artistically handsome. Dark-blond long hair, combed at the back of his head in a ponytail, brown eyes, a delicate nose and slightly plump lips. 

It was the first time I'd actually seen a man's tense penis. There seemed to be nothing beautiful about them, but they attracted my gaze. Anton's cock was noticeably bigger than his buddy's. I wanted to feel them, to feel their hardness.

The show went on. Sergei laid down with his back on the bed, and Yana sat on top of him. Her back was already to the half-open door. Her hand guided the man's cock into herself. Curving her dainty body, she arched her back, thrusting herself onto the shaft. Anton stood on his feet on the bed, bringing his heaving organ up to his sister's face. Yana, grasping the shaft of his cock with her right hand, sucked on his tool in a doddering motion.

Soon Anton jumped off the bed, took a tube lying on the nightstand, began to smear shiny cream on his cock and the moving hole of Yana's anus.

Then he began to position himself on top of Yana's ass. My sister lowered her breasts on Sergei's chest, arching her ass higher. I could perfectly see how Anton with his palm confidently guided his sword into my sister's cave. Soon two pistons were working rhythmically in my older sister's body. Yana was howling loudly with pleasure. At that moment I came once more, flooding my fingers with moisture.

Anton shrieked, twitched, then froze. He pulled his cock out of Yana's ass and sprawled on the bed. Sergei groaned, Yana deftly released his cock. Kneeling on the floor, my sister settled her face between his spread legs. Yana's back was to the door, so I couldn't see what she was doing to Sergei's cock. I could see the man's legs shuddering, a thin white trickle flowing out of Yana's half-open hole.

I realized that the show was ending and it was time for me to get away from the door. I rushed to my room where my pink friend was waiting for me. Not stolen, but already given to me as a gift.

***

The day after school, Jana came into my room again.

- Hey, sis! Did you like the show last night? - she asked intriguingly.

- Yes, very much! - I replied, looking down in embarrassment.

- Do you want me to teach you some more stuff?

- Yes, I do! - I agreed without hesitation. Yesterday's demonstration turned my mind upside down. All I could think about was what I'd seen yesterday. I really wanted to transcend my shyness and become as badass as Yana. And not knowing what my sister was up to, I was ready for anything.

- Take a shower, I'll be waiting for you in my room!

When I entered my sister's room, I was greeted by dimmed lights and quiet melodic music from the bluetooth speaker. Yana was wearing a red long kimono. She sat down on the edge of the bed.

- Sit on the chair! - She pointed to a chair opposite the bed.

I walked over to the chair and saw a black vibrator lying on the seat. To sit down, I had to take the silicone toy in my hand. Squeezing the elastic object, I sat down on the chair and looked at my sister. She had the exact same dildo in her hands.

- Show me how you have fun with it! - Yana said imperiously.

I felt a rush of embarrassment, ashamed. I blanched, sitting on the chair unmoving.

- Don't be shy, I'll join you! Let's do it together! - Seeing my embarrassment, my older sister said.

She opened her kimono. She was wearing nothing underneath. Yana took the dildo in her hand, pressed a button, and the object in her hand vibrated quietly. She spread her legs and directed the vibrator to her slit.

She slowly began to run the buzzing head of the dildo over her slightly open lips. I tensed up and watched her. Yana had a very beautiful sexy body. Not skinny, but not fat either. Everything was harmonious and feminine, four-dimensional heavy breasts, thin waist over round hips, smooth legs. Our faces were very similar to each other, the same green eyes and expressive lips. Her hair was also dark blond, but I had it below my shoulders, and she had a very short boyish hairstyle.

Yana fidgeted with the head of the vibrator in her pussy and pushed it in deep. It was obvious that she was enjoying it. Biting her lip, she sniffed softly.

- Come on, Julia, don't slow down!

I lifted her skirt, pulled aside the fabric of her white panties. I turned on the vibration and put the tip of the vibrator to my slit. There was already a sea of juice there. After stroking the surface, she pressed down. The vibrating head entered me. From the vibration of the toy, the usual glorious waves flowed through my body. The pleasurable sensations slowly began to displace my shyness.

- Take off your clothes! - Yana commanded, throwing her kimono on the bedspread.

Without pulling the vibrating object out of me, I pulled off my T-shirt with one hand, then unhooked my white bra. Reluctantly pulling the phallus out of me, I quickly threw off my skirt and panties.

Yana and I sat on top of each other and pounded our pussies with quietly buzzing dildos. Our moaning was louder than the sound of the vibrations.

Suddenly the door of the room creaked open. I turned around. Anton and Sergei entered the room completely naked.

I covered my breasts with one hand and squeezed my legs, but the vibrator remained in my other hand and in my body.

- Yulia, calm down, the boys will help us, they won't do anything bad! - Waving her head at the incoming people, my sister said.

I froze, only the vibrator in me trembled quietly.

As I found out later, everything had been staged by Yana. Both yesterday's performance and today's.

Anton walked around me and approached the bed. Jana, without pulling out the vibrator, with her free right hand intercepted the shaft of the guy's already tense penis and directed the head into her mouth.

Looking me straight in the eyes, my sister, like a teacher of blowjob lessons, began to show me all the wisdom of oral caresses. Licking, kissing, sucking a living male organ.

I carefully watched Yana, I felt that the first shock was passing. Little by little I began to unclench. Being completely naked with a trio of also naked students, I was no longer as embarrassed as I had been in the first minute.

I felt a man's slightly rough palms on my shoulders and began soothingly stroking them. The touch felt good. A meter and a half away from me my sister was sucking the male cock of her classmate, another man was standing behind me behind a chair, a phallus was vibrating in my vagina. This situation made me get turned on again and soon I was moaning again from the rush of emotions.

Something touched my right cheek from the side and I turned my head. The head of a man's penis was pointing at my face. There was a shiny droplet oozing on the small hole of the head. Without realizing it, I unconsciously licked the moisture off with my tongue and opened my lips to let the head into my mouth.

I roughly knew how to do it, often watched videos on my tablet, and my sister arranged a demonstration lesson.

The feeling of a man's cock in my mouth was pleasant and very exciting. I took Sergei's hard shaft in my hand and, glancing at my sister's actions, began to repeat her actions. She licked Anton's glossy head and I did the same, she ran her tongue along the shaft and I did the same, she licked his testicles and I did the same. I was already turned on to the point of unreality by all of this, especially since the quivering vibrator was still inside my vagina.

Jana released the man's cock from her mouth and pulled out the black vibrator glistening with moisture. She laid her partner's back on the bed, climbed onto the bed and sat on the man with her back to his face but her front to me. Deftly guiding his upturned cock into her, she deposited it and began rocking up and down, wiggling her hips. In this position she could see what her sister was doing, and I could see the man's cock entering her.

Sergei took the initiative, taking his organ out of my mouth, and lifted me from the chair. I obeyed him unconditionally. He sat down on my seat and pulled me up, sitting me on top of him like a chair. His legs stretched out between my legs. My legs spread apart and the vibrator fell out and fell to the floor with a clatter.

I felt a hard organ seeking my bottom. Sergei lifted me slightly by the waist, and I felt the hard flesh fill my wet slit. I realized that at that moment I had truly become a woman, and there was no turning back. I didn't want to go back! The sensation of a real male organ was much brighter than that of a vibrator. Sergei started washing my breasts with one hand, tickling my tense nipples with his palm, and with his other hand he began to raise and lower my belly on his stake. Opening my mouth, I groaned at my first orgasm. Jets of pleasure flowed throughout my body. I wanted to collapse and freeze in tenderness, but the man wouldn't let me rest. He wobbled me like a doll, his cock sliding tightly into my body. After a couple minutes, the flames of passion began to flare up in me again.

I heard Yana's loud yelp. She, too, had reached the point of orgasm. After freezing for a while, she got off her partner, stood on the floor, came over to me and pulled me decisively off of Sergei. Not realizing what she wanted, I looked at my sister in surprise. Yana, without explaining anything, shoved me imperiously to Anton, who was lying on his back. Pushing me over, she sat me down on her classmate facing him. Then with her hand she guided his cock sticking up into my vagina.

Anton grasped my hips and bucked up and down, arching up and down in counter movements. His cock was bigger than the previous one, which gave me new sensations. Feeling the fire burning in me, I glared at the man. Turning back around, I saw that Sergei was still sitting on our chair, with Yana straddling and facing him. I could see his cock dipping under her shifting buttocks.

An orgasm came over me again. With a howl, I fell chest down on the man's chest, kissing him gratefully on the lips. Anton, holding my hands tightly to him, continued his rhythmic movements.

Suddenly I felt a cold, slippery touch on my back hole. I raised myself up and turned around. Yana, holding a tube, was putting lubricant on my anus. Sergei was standing next to her and was whacking his erect cock with his hand.

I didn't realize what they were up to, but when I felt the head of the man's cock against my anus hole, I realized quickly. There was a lot of discovery for me today. I was okay with that. When I watched my sister and her partners yesterday, I really wanted to be in her shoes between two men. It was a dream come true!

I thought it was good that it was Sergei and not Anton. The former has a smaller penis. But the sensation of a man's cock entering me didn't feel so small. Sergei's cock fit tightly into my ass. At first it was unusual, even unpleasant. But when two cocks rhythmically worked in me, the unpleasant sensations gave way to the rasping, pleasurable double touches. One cock would come out, giving way to the second cock, then enter, pushing the other one out. With such intense friction, I was about ready to cum again. At the peak of my orgasm, I felt a slackness. Sergei's cock left my cave. Anton continued to pound my pussy from below, and I arched up to meet him. I didn't realize that sex was so great! I was learning a new and exciting world! Soon I felt a new wave of orgasm coming over me. At that moment Anton threw me off him with a sharp bend of his torso. Grabbing me by the head, he unapologetically put my mouth on his cock, shaking from tension. Before I knew what was happening, I felt my mouth filling with brackish male sauce, which reminded me of the taste of shrimp, which I liked very much. Anton's hand held my head imperiously by the back of my head, and I had to swallow, the streams filling my mouth. I did it with relish, I had done a lot of things today with pleasure!

When I came to my senses, I saw three satisfied faces looking at me. On Yana's lips and on her chin glistened liquid streaks. Sergei's semen, I guessed.

- Well, Yulia, did you like it? - asked, smiling, my older sister.

- Yes, very much! - Without thinking, I answered.

- Do you want more?

- I do!

- That's it for today! Our parents will be home from work soon! We'll do it again tomorrow! - Yana summed it up.