College students share a house and live together and exchange girlfriends (student campus adult novel)

My girlfriend and I are both juniors in college. We have been together for two years and have been having sex for more than a year. We decided to rent a house this semester, so we asked two other classmates to share the apartment with us. They are also a couple. The girl is regarded as our elder sister, and her boyfriend is called K. We have a very good relationship and can talk about anything together. Of course, sex is also a topic we often talk about. In fact, I have secretly liked my sister for a long time. She is very quiet, her skin is very fair, her breasts are as round as small balls, and her butt is also very big. But overall, her figure is a bit fat. However, she has rich sexual experience and has slept with three boys. She is very feminine.

However, although my girlfriend is also very beautiful, she is a little thin. However, her measurements are in good proportion, especially her buttocks which are very firm. I feel very comfortable every time we have sex. After more than a year of my training, her sexual skills have also improved a lot.

When we were bored, we would use the computer to download some pornographic films to watch. At first, we would watch them secretly in our own rooms, but later, the four of us would often get together to watch them and discuss various sexual positions and techniques with each other.

However, after having sex with my girlfriend many times, I found it a bit boring. I was facing the same body every time, and even if I had a strong sexual desire, I couldn't help but lose some passion.

1. First try of exchange

Finally one day, we joked that we might as well try swapping like in the movies, maybe we would get some unexpected feelings.

My sister said that it would be better to exchange now. We had just watched a porn movie and were aroused, so I nodded and agreed on impulse.

My sister said, "I'm afraid this bed is too small. Why don't we just put the beds together?"

So K and I went next door and moved the bed where he and his sister slept. The two double beds put together are really big, big enough for four people.

At this time, my sister had already taken off her coat and said teasingly, "Hurry up, I'm almost naked."

My girlfriend is a little shy, so when I saw her, I walked up to her and stripped her naked. Seeing my girlfriend standing naked in front of another man, I was very excited, so I took off my clothes and hugged my sister, who was also naked, in my arms. K also took off his clothes. Seeing my girlfriend sitting on the edge of the bed with her head down, he walked over, inserted his erect big cock into her mouth, and slowly thrust it in and out.

I was even more excited when I saw it. I rubbed my sister's two big breasts while watching my girlfriend giving K a blowjob.

Although K's dick is not as long as mine, it is much thicker than mine. The big dick filled my girlfriend's mouth, and K's two hands were also kneading my girlfriend's nipples.

After a while, they changed positions, K knelt on the bed, and my girlfriend lay down and continued to give him a blowjob.

My sister saw from behind that my girlfriend's pussy was already full of juice, so she put her mouth close to hers and licked her pussy.

I adjusted my sister's body and knelt behind her to lick her pussy. Maybe because she had just watched a porn movie and the scene was so obscene, my sister's clitoris had already protruded high, and the pink color looked very bright among the sparse pubic hair.

I sucked my sister's clitoris with my mouth, and inserted two fingers into the hole with one hand and stirred it. Soon a large amount of vaginal fluid flowed out.

At this time, my girlfriend had sucked out K's semen, but her face was covered with white semen. My sister was also moaning, but she couldn't scream because she still had my girlfriend's clitoris in her mouth.

Seeing that K had already ejaculated, I suggested that we change direction. I sat down against the wall, my sister knelt down and sucked my big hard cock, while my girlfriend lay down and licked her pussy, and finally K lay down and licked my girlfriend's pussy.

My sister is very good at oral sex. I can clearly feel her tongue brushing my glans. I pressed my sister's head down and my entire cock was inserted into my sister's mouth.

My girlfriend had never seen other women's pussies so closely, let alone a pussy full of pussy juice. Seeing that she hadn't started to lick her sister yet, I patted her sister. Her sister seemed to understand what I meant, and she opened her legs a little, then held my girlfriend's head, forcing my girlfriend to lick her pussy.

While K was licking my girlfriend's pussy hard. My girlfriend's round butt kept twisting and she kept moaning.

My cock grew bigger and bigger in my sister's mouth, and after a while it finally exploded, and a stream of thick semen shot into my sister's mouth, and my sister actually swallowed it all.

I looked up and saw that K's cock was already hard and was rubbing her clitoris against the back of my girlfriend's butt. My girlfriend suddenly sat her butt back, and K's big cock went into her pussy with a "puff" and started to thrust in and out slowly.

At this time, my sister sat next to me, rubbing my cock while watching K fucking my girlfriend's pussy. My girlfriend moaned, "Husband, come on, fuck me!" I heard her and quickly moved closer and inserted my cock, which had not yet softened, into her little mouth.

When my sister saw me lying down, she rode on me and rubbed her pussy on my face, making my face covered with her pussy juice.

My girlfriend spit out my cock and said, "Go and fuck your sister, I'm fine." So I turned over and pressed my sister down, and the big cock was swallowed by my sister's pussy in an instant.

My sister's pussy was already flooded with pussy juice. Every time I thrust my big cock in, it made a "puff puff" sound. I could feel her pussy juice had already flowed to her ass.

In order to see more clearly the lewd look of my girlfriend being fucked, I carried my sister to their side. At this time, my girlfriend also lay down. The two girls lay side by side, both raised their legs high, and their pussy dripping with lewd juice was exposed in front of K and me.

K and I once again inserted our big dicks into each other's girlfriends' pussies and fucked them even harder. The two girls kept moaning in pleasure.

I put one of my sister's hands on my girlfriend's pussy, and my sister started rubbing her clitoris, while my girlfriend also rubbed my sister's clitoris with one hand.

Seeing my girlfriend looking so lewd, I became even more excited, and every time I thrust into the deepest part of my sister's pussy.

After doing this for about five minutes, my girlfriend suddenly yelled, "I can't take it anymore. I'm going to cum." K quickly pulled out his dick, and my sister rubbed her clitoris even harder. A stream of vaginal fluid spurted out of my girlfriend's vagina, soaking the sheets.

When my girlfriend reached her orgasm, she was so excited that the fingers she was rubbing her sister's clitoris suddenly penetrated into her hole, and her two fingers and my cock stirred in her hole together.

My elder sister couldn't stand this kind of stimulation, and soon she also shouted: "I can't take it anymore, please cum in my hole."

I couldn't bear it anymore when I saw this, so I thrust a few more times vigorously and shot all my thick semen into my sister's pussy. At this time, K also came from my girlfriend's oral sex. The four of us were so tired that we lay down together to rest.

I saw my girlfriend's face covered in semen, and my cock got hard again unconsciously. My sister noticed it and said while stroking it, "Why are you hard again? Do you want to fuck me again? But I'm so tired."

At this time, I saw that K's penis was also getting hard in my girlfriend's hand, so I said, "Why don't you use your hands and mouths to make us cum once."

My girlfriend said "hmm" and started stroking K's cock vigorously. My sister also held my glans in her mouth and stroked my cock.

My girlfriend said, "Let's see who cums first. Whoever cums first I'll play with tomorrow."

My sister said, "Okay, I'm going to make your husband cum first. I haven't seen you two fuck yet."

In order to be able to fuck my girlfriend in front of my sister tomorrow, I played with my sister's pussy with one hand and my girlfriend's pussy with the other hand. Sure enough, in less than five minutes, I filled my sister's mouth with semen.

Soon, K also ejaculated in my girlfriend's mouth. The two girls hugged each other and fed the semen in each other's mouths.

That night, K and I fell asleep in each other's arms.

From this day on, the four of us began our promiscuous life.

2. Fall in love with the taste of exchange

The next morning, I woke up first and found that my sister had gone to take a shower, while my girlfriend was still sleeping with her legs apart and one hand still holding K's dick.

I quietly used a finger to tease my girlfriend's clitoris, while using the other hand to stroke my big cock.

After a while, my girlfriend's pussy started to get wet. My dick got hard, so I inserted my fingers into her pussy a few times and then prepared to insert it into her pussy.

I spread my girlfriend's legs apart, then I knelt between her legs and slowly inserted my dick into her. At this time, my sister came in after taking a shower. She was still dressed. When she saw me, she said, "You got up? You want to fuck your wife when I'm not here, right?"

As my sister said this, she climbed onto the big bed, looking down at the place where my girlfriend and I were connected, while rubbing my girlfriend's clitoris.

My girlfriend woke up soon. When she saw me fucking her and my sister playing with her clitoris, her face turned red.

The sister grabbed one of her hands and pressed it on her vagina. My girlfriend also cooperated by rubbing my sister's vagina and even inserted a finger into the hole.

K was also woken up by us. Seeing the lewd scene, his dick became hard. My girlfriend grabbed it, and K also came over and stuffed his dick into my girlfriend's mouth.

At this time, my girlfriend's upper and lower holes were penetrated by cocks. She was so excited that she kept humming and soon reached orgasm.

My sister said, "You two can fuck her from behind. I want her to lick my pussy."

So I lay down, and my girlfriend stuffed my wet cock into her anus, then K inserted his cock into her vagina, and my sister also sat on it and aimed her vagina at my girlfriend's mouth.

For the first time, my girlfriend's two holes were filled at the same time, and she had to lick her sister's pussy.

K and I started thrusting in and out, one after the other. With only a layer of flesh between us, I could clearly feel K's cock thrusting back and forth in my girlfriend's vagina.

My girlfriend couldn't stand such strong stimulation. She screamed loudly and used her hands and mouth to play with my sister. My sister seemed to have an orgasm as well. A lot of vaginal fluid flowed out, covering my girlfriend's face.

K ejaculated very quickly and shot all his semen into my girlfriend's vagina. K said, "I have to go now. I have classes today."

I said, "Go ahead, I'll satisfy them."

I pulled my cock out of my girlfriend's anus, pressed on her and licked her sister's pussy juice on her face. I held the big cock with one hand and slowly inserted it into my girlfriend's pussy.

My girlfriend said, "I've had enough, you should go and fuck my sister, you see how horny she is, haha."

When I heard that, I quickly pulled out my cock and pounced on my sister who was digging her hole. My girlfriend stuffed my cock into my sister's hole from behind and then rubbed her clitoris.

My girlfriend turned over and stared at the place where my sister and I were having sex, while my sister also hugged my girlfriend's body, buried her head between her legs and licked my girlfriend's pussy.

My sister screamed loudly under the joint attack of my girlfriend and me: "Ah...oh...fuck me...fuck me hard...ah...I...I'm going to cum..."

I saw that my sister was about to orgasm, so I thrust a few times and then quickly pulled out my cock, then put my sister's vagina in my mouth. Suddenly, a stream of warm vaginal fluid spurted out of my sister's vagina, and I drank it all.

When my girlfriend saw me pull out my cock, she started stroking it hard with her hand. I was stimulated by my sister's vaginal fluid and felt that I was about to ejaculate, so I inserted my penis into my sister's vagina again. My sister's vagina was still contracting and squeezing my glans.

I said, "Sister, I came inside your vagina." My sister said "hmm", so I shot all my semen into her vagina.

(III) Sisters having sex together

In the evening, before K came back, my sister couldn't help it anymore and pulled me to sit in front of the computer while we watched porn.

My girlfriend took a day off after two battles, but she had recovered by then. When she saw her sister taking out my cock and stroking it, she sat next to me and played with my cock with her sister.

My sister jokingly didn't let my girlfriend play, so my girlfriend sat next to my sister again, took off her pajamas which I had already pulled open, and then hugged my sister's big breasts and kissed and kneaded them.

My sister was soon made breathless by my girlfriend and she no longer had time to play with my cock. I crawled behind my girlfriend, took off her nightgown, and then took the little hand that my sister had just used to play with my cock and put it on her.

When my sister touched my girlfriend's clitoris, she began to rub it vigorously. At this time, I took off my sister's pajamas again. I touched my sister's pussy, and a lot of pornographic fluids had already flowed out.

My girlfriend was also trembling all over because of my sister's touch. My sister had already inserted two fingers into my girlfriend's vagina with her vaginal fluid and was still pumping continuously.

When my girlfriend saw that her pussy was being fucked by her sister's hand, she let go of her sister's big breasts, lowered her head and got between her legs, then started licking her pussy.

My sister also buried her head in licking my girlfriend's clitoris, but her fingers were still inserted in the hole. My girlfriend also inserted two fingers into my sister's vagina.

At this time, the two girls were hugging each other, licking and digging each other's holes. I sat next to them, watching them while stroking my big cock.

It was the first time for me to see two girls licking each other's pussies. I was very excited and my big cock had grown to its largest size.

While I watched my girlfriend and sister licking and digging each other's pussies, I kept stroking my big cock that had turned purple.

After about five minutes, I couldn't hold it any longer and was about to ejaculate, so I pulled them both up and said, "I'm about to ejaculate, do you want to drink my semen?"

After hearing this, my girlfriend and sister nodded quickly, then knelt side by side on the edge of the bed with their mouths open, waiting for me to ejaculate in them.

I felt my glans suddenly swell, and a thick stream of semen spurted out. The first stream shot into my girlfriend's mouth, and the second stream shot into my sister's mouth, but the latter streams were caught by my sister's hands and touched on her own and my girlfriend's breasts.

When the two girls saw that I had finished ejaculating, they hugged each other again and pushed the semen in their mouths into each other's holes. I knelt above my sister's head and stuffed my still-hard cock into her mouth. After a few minutes, my sister not only licked all the semen off my cock, but also made it harder than before.

I pulled my cock out of my sister's mouth, lifted it up, and inserted it into my girlfriend's pussy, with my sister's face almost touching the place where we were having sex.

My girlfriend turned around and found that my cock had already been inserted into her vagina. Her firm buttocks were raised higher and she moaned loudly.

I thrust as deep as I could each time, and after about three or four hundred thrusts, my girlfriend suddenly yelled, "I'm about to cum."

I suddenly felt a heat on my glans, and knew that my girlfriend's vaginal fluid had come out, so I pulled out my penis suddenly, and a large amount of vaginal fluid sprayed all over my sister's face.

Seeing this, my sister hurriedly opened her mouth and took my girlfriend's vagina into her mouth, drinking all the vaginal fluid that she squirted out.

I turned to the other side, and my sister's pussy had been licked wide open by my girlfriend, and a large amount of vaginal fluid made it moist and shiny.

I held the cock in my hand and thrust my hips forward to insert it.

But this time it was my girlfriend's turn to admire it up close.

It was also the first time for her to see me fucking a vagina so closely, and it was my sister's vagina, so she watched intently while rubbing her sister's clitoris with her hand, and from time to time she touched the place where my sister and I were having sex.

I became even more excited when I saw this scene. My sister twisted her body and her two big white breasts swayed back and forth.

My sister reached her climax very quickly, and I could clearly feel her vagina sucking on my cock.

My cock felt very comfortable being clamped, and with the stimulation of my girlfriend, it didn't take long before I shot all of my second load of semen into my sister's pussy.

When I came out of the bathroom after taking a shower, my sister said to me, "Take a rest tonight and have fun tomorrow."

I said, "So what are you two girls going to do tonight?"

My sister said, "It's okay. I've already called K and asked him to buy a dildo."

My girlfriend was still excited. She was lying on the big bed, rubbing her pussy and saying, "My sister and I just discussed it. We both want to try what it feels like to be fucked by a dildo. You can help me tonight."

I said, "Well, if I get hard again, I'm going to do it front and back."

My girlfriend said, "Damn it, come over and rub my clitoris, I'm about to orgasm."

I hurried over to rub her clitoris, which had turned red and swollen. My sister also inserted two fingers into my girlfriend's vagina and started pumping vigorously.

My girlfriend suddenly clamped her legs tightly together, and a stream of hot vaginal fluid flowed out from between my sister's and my fingers.

4. Dildo and Big Dick

My girlfriend and sister had just finished taking a shower when K came back. The sister didn't even bother to put on her clothes, she ran over and took out a dildo from K's bag.

This dildo is about twenty centimeters long and about six or seven centimeters in diameter, which is a bit larger than K's and my dicks. K took out two batteries from the bag, put them into the dildo, turned on the switch, and the dildo started twisting automatically. Moreover, this dildo comes with a strap so it can be worn on girls.

At this time, my girlfriend came over and saw it. She excitedly competed with my sister to use it first. To be honest, I never realized that my girlfriend was so slutty before.

The four of us got on the big bed naked.

My sister smiled and said to my girlfriend, "I'll give you the dildo first, but there's a condition."

My girlfriend didn’t quite understand and asked, “What are the conditions?”

My sister took the dildo in her hand and rubbed it against my girlfriend's vagina while saying, "The condition is that the three of us help you use it together."

My girlfriend didn't want to agree at first, but her vagina felt very comfortable being rubbed by the dildo in my sister's hand, so she nodded and agreed.

When my sister saw that she agreed, she winked at us and K. So K laid my girlfriend flat, rode on top of her head, stuffed his dick into her mouth, and rubbed her breasts with his hands. I spread her legs and pinched her clitoris, while my sister put on the dildo, spread my girlfriend's vagina with one hand, and slowly inserted the dildo soaked with her own vaginal fluid into her hole with the other hand.

Now my girlfriend's two breasts and entire vagina were controlled by the three of us.

When the dildo was first inserted into my girlfriend's vagina, she was just humming softly, but as my sister's thrusting speed increased, her moans became louder and louder, but because she had K's dick in her mouth, she couldn't make any complete sound.

My girlfriend's vaginal fluid flowed out in large streams, making the dildo moist and shiny.

I got very excited when I saw my girlfriend being raped, especially her vagina which was turned open by the penetration.

I stood up and hugged my sister's two big breasts from behind, while rubbing my hardening cock on my sister's plump ass.

My sister noticed that my cock was hard again, so she stopped pumping it into my girlfriend's pussy and said to everyone, "Let's change positions." Then I lay on the bed and inserted my cock into my girlfriend's pussy, and my sister asked us to hug each other.

I had just inserted it a few times when I heard my girlfriend scream "Ah". I looked and found that it was her sister who inserted the dildo into her anus. At this time, K stood behind his sister and inserted his penis into his sister's anus.

I felt that the cock inserted in my girlfriend's vagina was squeezed very tightly by the dildo inserted into my sister's anus, with only a thin layer of flesh wall separating them. I could clearly feel every time my sister inserted it.

Every time K fucked my sister's asshole, my sister fucked my girlfriend's asshole once, and then I fucked my girlfriend's pussy once.

My girlfriend couldn't stand such stimulation. She was so excited that she couldn't even scream. She just hugged me tightly with her hands. Suddenly, her buttocks were lifted up and a stream of hot vaginal fluid spurted out of her vagina.

When my sister saw that my girlfriend had an orgasm, she pulled out the dildo and said to my girlfriend, "Put it on now. It's your turn to fuck me. I want to taste it, too."

My girlfriend had no strength left due to the orgasm, so I took the dildo off my sister and put it on my girlfriend. At this time, K was still hugging my sister from behind, but his dick had already been inserted into my sister's vagina.

My girlfriend was lying on her back with the dildo standing straight up against her belly. The elder sister said to K: "Go to the front and I will give you a blowjob."

I guided my sister to sit astride my girlfriend, and then I held the dildo and aimed it at my sister's pussy, which was already flooded with pussy juice. My sister sat down gently until the entire dildo was swallowed by her pussy.

K didn't let my sister give him a blowjob, but instead stuffed his dick into my girlfriend's mouth. I also sat astride my girlfriend, pressed her sister down from behind, and then inserted my dick into her asshole.

It was the first time I penetrated my sister's anus, and she felt it was very new. So, under the stimulation of the dildo and my cock, she swung her plump big ass hard to cater to our thrusting.

My girlfriend seemed to understand the feeling of a man. She lay flat on her back and pushed her waist upward with force, each thrust reaching the deepest part of my sister's vagina. I touched my sister's vagina and thighs with my hands and found that the vaginal fluid had flowed everywhere, and some of the vaginal fluid even flowed along the dildo to my girlfriend's vagina. The two girls' vaginal fluids mixed together, and it was impossible to tell who flowed more.

K knelt above my girlfriend's head with his cock fully stuffed in her mouth, while his hands were randomly grabbing and rubbing my girlfriend's and sister's breasts.

I touched my sister's clitoris with my hand and rubbed it gently. My sister's clitoris became harder and harder in my hand, like a small soybean. I took some vaginal fluid from the place where the dildo and my sister's vagina were connected, smeared it on my sister's clitoris and continued to rub it, gradually increasing the force, and my sister's moans became louder and louder.

At the same time, my girlfriend and I also increased the speed of thrusting.

Suddenly, my sister straightened her body and shouted, "I orgasmed." My girlfriend quickly pulled out the dildo, and a small stream of vaginal fluid spurted out of my sister's wide-open vagina. At the same time, I could feel my sister's anus contracting again and again.

When my sister was still unconscious from her orgasm, I held her big ass and started fucking her hard. My sister said vaguely: "Oh... cum in my asshole." I felt my cock getting bigger and bigger, and the glans getting hotter and hotter. I held on until the end and cum all the semen into my sister's asshole. My sister moaned and said, "Oh...it's so hot...it feels so good."

After I ejaculated, I pulled my cock out of my sister's asshole and found that K also ejaculated in my girlfriend's mouth, which was full of white semen. My girlfriend looked very lewd with the white semen in her mouth.

When we went to bed that night, my sister and I were in a group, and K and my girlfriend were in another group. My girlfriend and sister slept with K and my dicks in their mouths respectively, and after K and I licked their pussies for a while, we inserted two fingers into their pussies and slowly fell asleep.

(V) Three people bathing together

About half a month after our promiscuous life began, my sister met a girl from the same class, Xiaoyu, while surfing the Internet. During the chat, she learned that she and her boyfriend were going to move out of the school, but it was difficult to find a house.

My sister immediately called me over and asked me if I could help them find a house.

I said, "Xiaoyu is so pretty, and her body is curvy. It would be great if we could bring her in to play with us."

My girlfriend heard this and said, "Are you planning to take advantage of Xiaoyu again?"

I quickly said, "No, Xiaoyu's boyfriend is also good-looking. If you bring him in, you two sluts will also benefit."

My sister heard this and said excitedly, "Yes, then let's find a way to get them to join us."

I thought about it and said, "But we only have two rooms. Although there are four of us living together now, what if they really move in and feel weird or uncomfortable or don't accept it?"

My sister grabbed my cock and said, "Don't worry, I can handle it. Just wait and use it to fuck Xiaoyu."

Sure enough, half an hour later, my sister excitedly told us, "It's OK. Xiaoyu and her family will move in this afternoon. She also said that her boyfriend's penis is very big."

I smiled and said, "What a slutty sister, go wash your pussy and get ready to be fucked by a big cock this afternoon."

My girlfriend, who was lying on the bed playing with the dildo, laughed mischievously when she heard this.

I said, "And you, go and wash your pussy with your sister."

My girlfriend and sister ran into the bathroom naked. I watched them go in and then I took off all my clothes and went in too.

At this time, they had already poured water on their bodies and were applying shower gel.

I hugged my sister from behind while she was facing away from me. I grabbed her big breasts with both hands and rubbed them non-stop. Because my hands were covered with shower gel, they were particularly slippery when rubbing. I pinched my sister's nipples from time to time. After a few minutes, my sister began to pant.

"Oh... that's disgusting... don't touch me like that... oh... but... but it feels so good..."

My girlfriend was washing her pussy next to my sister, when she suddenly heard her moaning. She came over and said, "Sister, let me help you wash your pussy." After saying that, my girlfriend reached her hand between my sister's legs, touched her pussy, and began to rub it gently.

My sister couldn't stand such stimulation. Although she said no, she still spread her legs.

My girlfriend smiled and said, "Sister, you've had a lot of vaginal fluid. Let me lick it for you." My girlfriend rinsed the foam off her sister's vagina, then squatted between her legs and began to lick her vagina vigorously.

My cock started to harden and rubbed it on my sister's plump, white butt for a while. Then I bent down and clamped my cock between my sister's legs, pressing it tightly against her pussy.

My girlfriend was licking her sister's pussy, and suddenly she found my cock reaching out to her, so she started licking it with her tongue.

My girlfriend used her tongue to dip into my sister's vaginal fluid and licked my cock until it was very wet. Then my girlfriend pushed with her hand and my cock sank into my sister's vagina.

My sister was caught off guard and her vagina was suddenly penetrated. She couldn't help but scream "Ah", then she hugged my girlfriend and said, "You are so bad... I want you to be penetrated too... Oh..." At the same time, my sister also started to rub my girlfriend's breasts and clitoris with her hands.

My girlfriend not only did not resist, but she cooperated with my sister to twist her body, and said breathlessly: "Oh...husband...it’s enough for you to cum once...I still need to fuck...fuck Xiaoyu in the evening..."

My sister said, "Yes... tonight I... I want Xiaoyu's boyfriend to fuck me enough..."

My girlfriend also said: "Yeah... I want it too... I want a big cock to penetrate... penetrate my pussy..."

After listening to their words, I felt even more excited and I increased my strength and penetrated my sister's vagina hard. My sister also reached orgasm quickly. I pulled out my cock again, hugged my girlfriend, and inserted it into her vagina with a "puff". It turned out that she had been played with by her sister and had secreted a lot of vaginal fluid, so it was very lubricated when I thrust into her.

I held her ass and thrust hard for a while. My sister said, "Don't cum inside me, I want to drink it." My girlfriend also said, "I want it too."

So I ejaculated on my sister's big breasts. My sister picked up some with her hand and put it in her mouth, while my girlfriend directly hugged my sister's breasts and started licking them.

(VI) New people joining

Xiaoyu and her boyfriend L moved in in the afternoon as expected.

When K came back from class and heard his sister tell him this, he was very happy. Especially after listening to my description of Xiaoyu, his penis became hard.

My girlfriend saw a small tent in K’s pants, and with a wicked grin, she took out his dick, put it in her mouth and started sucking it hard.

K enjoyed it for a while, but immediately pulled back his penis and said, "I want to save my semen to ejaculate to Xiaoyu at night."

At this time, Xiaoyu and her friends came. After everyone introduced themselves briefly, Xiaoyu said to me, "Can you help us move some things? It's just downstairs."

When Xiaoyu and I went downstairs, I asked her, "What did my sister tell you? There are no extra beds for you to sleep in now."

Xiaoyu said shyly, "Sister told us about your sex swap and invited us to join."

I guessed that Xiaoyu and the others must have agreed, so I said happily, "So you agree?"

Xiaoyu nodded and said, "Yes, and from now on the six of us will sleep together. In fact, we have thought about swapping with other couples, but we didn't expect it to be with you."

I said, "Yeah, I didn't expect to swap with you, but since everyone agrees, let's enjoy it."

When I was carrying things upstairs, Xiaoyu walked in front of me, and her plump big butt swayed in front of my eyes.

I couldn't help but put down the things in my hands and said, "Can you take a break? I'm tired." I saw Xiaoyu stop, so I pinched her butt with my hand. Xiaoyu smiled and said, "Seeing that you are in a hurry, I will let you play enough after I finish moving the things."

After putting away all of Xiaoyu and the others' things, we had dinner together and then turned on a porn movie on the computer to liven up the atmosphere.

My sister said, "Get ready, let's get started."

Xiaoyu said, "Let's take a bath first. We're tired after a day. Let's have some fun after taking a bath."

My sister said, "That's fine. We girls will go in and take a shower first." As she spoke, she stripped herself naked.

My girlfriend also took off all her clothes and said to Xiaoyu, "Don't be shy, take them off quickly."

Xiaoyu smiled shyly and slowly took off her clothes. The first time I saw Xiaoyu's round body, especially her plump big butt, I was so excited that my dick got hard all of a sudden.

When Xiaoyu saw me staring at her, she ran into the bathroom. My girlfriend followed her out and turned back to us and said, "You guys come in and take a shower too."

So, K, Xiaoyu's boyfriend L, and I took off our clothes as quickly as possible and rushed into the bathroom together.

Fortunately, the bathroom is quite large, so it’s not too crowded for six people inside.

At the beginning, we all held our girlfriends while washing, and after washing our bodies, we washed each other's pussies and dicks. But after washing for a while, the sister became restless. She kept grabbing L's cock and made it stand erect.

In return, L also grabbed her sister's big breasts and rubbed them, and soon, her sister and L were entangled together.

I saw my girlfriend was watching them, so I said to her, "You should go over there and taste the new cock with your sister."

My girlfriend ran over with a smile, and together with her sister, she grabbed L's cock and jerk it.

I took advantage of the situation and hugged Xiaoyu who was standing beside me, grabbed her big round breasts from behind, and rubbed my already hard cock against her ass.

Xiaoyu's vaginal fluid soon flowed out, and her entire vagina was wet from being rubbed by my cock.

Xiaoyu said, "Please insert it from behind. I want it."

So I moved Xiaoyu's butt over, pushed hard, and the dick went into her little hole. At the same time, Xiaoyu also bent down and gave K a blowjob.

Xiaoyu's hole is very narrow, but there is a lot of moisture, so it is very comfortable to penetrate. Since Xiaoyu has K's dick in her mouth, she can only make some unclear sounds when I penetrate her vigorously.

I looked up and saw L was fucking my girlfriend, and my sister was licking the place where they were connected.

Maybe because the scene was so obscene and exciting, K and I ejaculated quickly, and L also ejaculated once in my girlfriend's vagina.

After a while, I saw that everyone had calmed down, so I suggested that we go play on the bed. So everyone washed their dicks again, the girls also washed their pussies, then dried themselves and went back to the room together.

After L lay on the bed, his sister was the first to pounce on him. She used her big breasts to hold L's cock and said, "You haven't fucked me yet. I want you to cum in my pussy." L's cock quickly became hard, and his sister hurriedly sat on it with her hands. With the help of his sister's vaginal fluid, L's cock was fully inserted into him at once.

My girlfriend sat next to me, stroking K's cock with her hand. I touched her pussy, which was also wet. I thrust two fingers in and out a few times, then whispered in her ear, "Go play with L, and let him lick your pussy."

My girlfriend said "hmm" and crawled over and put her pussy on L's mouth. L stuck out his tongue and licked my girlfriend's pussy.

At the same time, my girlfriend also touched the place where my sister and L were connected, rubbing her sister's clitoris, making her moan constantly.

Suddenly, I felt my penis getting hot. When I looked down, I found that Xiaoyu was holding it in her mouth. I held her head with one hand and rubbed her breasts with the other, watching my sisters having sex while enjoying Xiaoyu's oral sex.

At this time, K had already penetrated Xiaoyu's body from behind, holding Xiaoyu's plump buttocks with both hands and thrusting hard.

After playing like this for about twenty minutes, K couldn't help but ejaculate in Xiaoyu's vagina, and a few drops of white semen flowed out from the place where they were connected. L saw this and said to his sister who was riding on him, "Let me fuck you, Xiaoyu, and then I'll cum in you."

My sister said, "No, I'm enjoying it."

I pulled my cock out of Xiaoyu's mouth and said to her sister, "Sister, let me fuck you."

So, L and I changed positions, and my sister couldn't wait to put my dick into her hole. My sister's hole was stretched very loose by L's big dick, so I inserted it in effortlessly.

L held Xiaoyu's big ass, inserted his penis into her from behind, and said, "Honey, it feels so good to penetrate a pussy that has been ejaculated by others."

Xiaoyu moaned and said, "Hate it, but if you like, I will let others cum in my vagina every day."

My girlfriend pulled K over, put his still-hardened cock in her mouth for a while, and then guided the cock into her vagina.

While I was fucking my sister, she was rubbing her clitoris with her hand. After a while, my sister's butt was shaking more and more, so she couldn't help but shouting: "Ah... It feels so good... L come here... Fuck me... I'm going to orgasm..."

L, who was fucking his girlfriend at the side, quickly pulled out his dick, so I got up from my sister and switched positions with L.

L's big cock was swallowed by my sister's pussy in an instant. I inserted my cock into Xiaoyu's pussy and then watched L and my sister making love passionately.

I saw L's body shaking vigorously, and the cock inserted in the hole full of vaginal fluid made a loud noise. My sister also tried her best to raise her pussy to cater to the cock. Their movements became more and more intense. Suddenly, my sister screamed and a stream of vaginal fluid flowed out from the place of intercourse. At this time, L also ejaculated into my sister's vagina.

Seeing my sister being so lewd, my cock became bigger and bigger, so I started to thrust hard into Xiaoyu's hole, and soon ejaculated into her hole.

When my girlfriend saw that I had ejaculated, she said to K who was fucking her, "You two can fuck me together. I want to try the feeling of having two cocks fucking me."

After hearing that, I hurriedly moved towards my girlfriend with my cock still erect. She pulled K's cock out of her vagina, asked me to lie down, then rode on me and inserted my cock into her vagina. Finally, K also pressed on my girlfriend's back and inserted his penis covered with vaginal fluid into her vagina from behind.

I felt my girlfriend's pussy was suddenly filled with two big cocks, so K and I started fucking together.

My girlfriend pulled Xiaoyu over and said to her while moaning, "Oh... I... I want to lick your pussy... I want to drink the semen in your pussy..."

Xiaoyu then put her hole close to my girlfriend's mouth, and my girlfriend quickly put her mouth on Xiaoyu's hole and started sucking it with relish.

The crowded little hole tightly wrapped around K's and my cocks. We thrust harder and harder. My girlfriend knew we were about to cum, so she said, "Come on...cum inside me together..."

After about a hundred more thrusts, K and I simultaneously ejaculated into my girlfriend's vagina.

When we pulled out our dicks, a large amount of semen flowed out of my girlfriend's open hole. I looked at Xiaoyu and found that her pussy had been licked very clean by my girlfriend.

At this time, my sister crawled over and said, "I haven't drunk enough semen today." Then she hugged my girlfriend's body and licked and sucked her pussy that was dripping with semen.

Ever since Xiaoyu and her boyfriend moved in, the six of us started living a promiscuous life. The three of us boys have to ejaculate at least twice a day to satisfy these three slutty girlfriends. My girlfriend and sister have basically the same menstrual period. During those days, Xiaoyu would be fucked by the three of us in turn. When my girlfriend and sister saw this, they also clamored to try being fucked by three people at the same time.

We also played a lot of new and exciting games based on the plots in pornographic films, such as imitating gang rape, holding erotic dance parties, etc.

To be honest, it is indeed a very exciting thing to watch your girlfriend being fucked by many men, especially when your girlfriend is sucking the dick while being fucked and playing with a third dick with her hands.

The six of us lived together until we graduated from college, and we agreed to work in the same city and continue our promiscuous life...