Seductive Sister

Story by C-PRIME on SoFurry

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This is the story about how a female panda gets curious about her twin brother after she sees him masturbating and how she lets him know about her feelings.


Seductive Sister (Panda Couple...Twincest)

NOTE: This story is told from the female's POV.

I love my twin brother. Ever since we were little, Max and I have always been close. We spent many days playing video games together as kids, and playing soccer together during middle school. However, it wasn't until a bit later on in when my feelings for Max started to change.

It all started innocently enough one late afternoon in July when Max and I were 14. Our parents were both at work at the time and we were at the age where they could trust us to be alone at home without trashing the place. It was an unusually cool day outside. Too cold to head to the community pool for swimming, so we stayed home that day. However, it wasn't much fun staying at home in July when I didn't have to worry about school or anything like that for another 6 weeks. So, I decided to grab our father's old NES from the cabinet in the living room where he kept it and looked through some of Dad's video game collection.

Most of the games that Dad had were of the one player variety. Games like Zelda and Zelda II, Metroid, Mega Man 1-4, Ducktales, and a few others. There were a few two player games in there as well though, but they were the type of games where the players had to take turns (like Super Mario Bros. 1 and 3). I liked playing video games with Max, but I wanted to play a game with Max today. It was a lot more fun when Max and I played games together and I needed one that we could play at the same time. That was when I came across Dad's copy of Contra.

I had played Contra before with Dad and while it wasn't exactly my favorite game, it did allow both players to play the game at the same time. Since I couldn't find any others in Dad's collection that I knew did that, I decided to go with it and go ask Max if he wanted to play with me. By this point in our lives, Max and I had separate bedrooms. Mom and Dad put us in seperate bedrooms when we were 10. At first we didn't like it, but we got used to it over time. As I entered Max's room to invite him to play Contra with me, I noticed that he was playing with a different kind of joystick.

I saw my brother laying naked on his bed, rubbing one of his hands up and down his penis while holding what appeared to be an adult magazine in his other hand. It was quite clear to me that he was masturbating to the pictures in the magazine and I couldn't help giggling at the sight of him rubbing his shaft like he was.

When he heard me giggle, he looked towards where I was while his cheeks turned bright pink and he grabbed the nearest pillow he could find, covering up what I had already seen. "Maggie, what are you doing in here?", he asked nervously as I looked at him sitting on the bed with no clothes on, trying desperately to cover his boner with the pillow.

"That's funny, because I was about to ask you the same question", I answered my brother playfully, making him blush even more as he became very sheepish.

"Please don't tell Mom and Dad about this...or the magazine I found lying outside", he asked in a calm and sheepish tone. I figured if Mom or Dad knew about the magazine he had, they would not only make Max throw it out, they'd probably ground him over it as well. If they knew that I knew about the magazine, they might ground me as well. However, at the same time, I couldn't squeal on my brother, he meant too much to me.

"Tell you what, Max. I'll pretend that I never saw you with the magazine on two conditions. One, if Mom and Dad discover it, I want you to tell them that I don't know anything about it. Secondly, I want you to get some clothes on and come play Contra with me", I told my brother, thinking he would agree with my terms. He seemed to understand, but there was one thing he had on his mind at the moment.

"Can I finish what I'm doing first?", Max asked curiously as it seemed as his erection wasn't going away until he had relieved himself of his sexual tensions.

"Alright...but make it quick...and don't start until after I leave the room, OK?", I answered, letting my brother get back to masturbating while I started setting up the NES. The rest of that afternoon went on like normal, that is until later in the evening when I went to take a shower.

As I let the warm shower water caress my black and white panda fur, my mind started to drift a little bit. It was at that time I once again pictured Max inside my head, stroking his panda cock up and down while staring at the dirty magazine. I couldn't help but to be somewhat impressed with what he was packing. His length appeared to be about 7 inches long and still growing longer as he hadn't quite finished with puberty yet. Not only did it have decent length, but it also seemed rather thick and strong. I actually saw it twitching a bit in Max's hand as he stroked it earlier. At this time in my life, I was still a virgin, and needless to say the sight of my brother's penis did make me a bit curious. However, I knew in the back of my head that I couldn't do it with him. If Mom and Dad saw us having sex together, I was sure that we'd both get into a lot more trouble than we would if they found Max's "secret". So, I harbored these feelings inside me for several more years until Max and I moved out of our parents' house and into an apartment of our own.

Five years have passed since I first saw Max in the nude and my feelings of curiousity towards him had not changed. In addition to this, both Max and I were still single, with neither one of us being able to establish a long-term relationship with a member of the opposite sex. For Max, it was his addiction to porn that kept him from getting dates. By the time he had turned 18, Max seemed to be more interested in the girls in his magazines and DVD's than he was in real-life females. In my case, it just happened to be picking the wrong male to date. During high school, I had three different boyfriends, two of which went nowhere fast. However, it was the third one that hurt the most, a rabbit boy by the name of Lucas.

I had actually taken an interest in Lucas at first. He seemed friendly and polite towards me and we went out several places together. He was also the one to take my virginity when I was 17. When I felt him cum inside me multiple times that night, I felt as if Lucas was the one for me and that we would someday be married and have a family of our own. However, on one of the nights we were supposed to have a date, I went over to Lucas' house and caught him in the middle of having sex with a female fox that I hadn't seen before. It was at that time when I dumped him and decided that I would stop looking for a boyfriend for a few years, at least until I was done with college.

Max and I decided to share an apartment together after we moved out of our parents' house. I spent my days going to class at a local community college while Max got a job working in construction shortly after high school. We each had separate bedrooms, just like we had back home before we moved out, and it seemed like in a few years we would be going our separate ways. For now though, Max and I continued to live together under one roof and tried to conduct our lives the same way we had back when we lived with Mom and Dad. It wasn't easy at times though.

Since Max and I had bedrooms next to each other, I often heard the sounds of Max's DVD's combined with him masturbating to them at night while I lay in bed at night. I did my best to try and tune it out so I could get some sleep, but often when I did, my mind would drift back to what I saw several years earlier. I remembered how I watched his large black panda penis throbbed when he stroked it and the beads of his clear precum dripping out of the tip. It made me feel all warm and tingly inside, as I would often wake up in the morning to soaking wet panties from my thoughts of Max's shaft.

Part of me felt embarrassed about this whole situation. However, deep down inside me, I knew that I wanted to give my brother a try. I wanted to see what that thick panda cock of his would do to me. Who knows, maybe once Max had the real thing he'd give up his porn collection. I soon developed a plan to get him to have sex with me. I just needed the right time to come in order to implement it.

A few more nights passed as I had gone into my bedroom to use my computer for a little bit after Max and I spent the last couple of hours playing on Dad's old NES (he had given it to us when we moved out). I had a biology exam coming up in a couple of weeks and I felt like doing a little bit of studying. However, a few minutes after I went into my room, I started to hear the sounds of one of Max's DVD's coming from his bedroom and sighed. At first, I was tempted to tell him to turn the damn DVD down. However, once I heard the familiar sounds of his moaning, I knew he was masturbating again.

My mind drifted off again to when I saw his penis the first time, feeling my insides become hot and moist as I couldn't help reaching into my panties to touch myself. I could almost feel Max's thick shaft moving in and out of me as I rubbed my clitoris. The touch felt good to me, but with the way my body was acting, I knew that it wasn't going to be enough. I needed my brother inside me and I needed it tonight. That was when I set my plan into action.

I left my bedroom, wearing only my bra and panties, which were starting to become damp from my thoughts of my brother and quietly made my way to his bedroom door. I was going to do exactly what I did the first time I saw him masturbating. This time though, I had a different kind of game in mind for him.

Neither one of the bedrooms in our apartment came with locks on the doors, so I was able to peek into Max's room without him noticing right away. When I entered, I saw my chubby twin brother, rubbing his now 8 inch long penis up and down at a vigorous pace while on his flat-screen TV I saw some random female fox getting fucked "doggy-style" by a male mouse. I figured that Max was trying to picture himself in the mouse's shoes, as in being the one who got to bang the vixen and using the sounds of the DVD to get off more than he was using the actual video.

I looked back at his shaft a few moments later and saw that it was just as arousing as it was before. It twitched strongly in my brother's hand while a small river of precum ran down his tip, showing just how horny he was. If he kept going like this, it was likely that he was going to cum within a short amount of time and while part of me wanted to watch his shaft explode with his milky white semen, more of me wanted to have him save it for my insides. That was when I decided to make my presence known.

"Still getting off to porno, I see", I commented in a playful manner as Max immediately opened his eyes and jumped up, grabbing a pillow to cover his powerful erection.

"Maggie! Do you mind? I'm kinda in the middle of a private moment here!", he exclaimed nervously as I walked over to the DVD player and touched the power button, turning the device off.

"Come on now, Maxy. Why would you want to watch some vixen you can't have when you have someone here who wants you?", I asked my brother as he looked at me with light brown eyes as wide as saucers.

"What are you getting at?", he asked curiously as I blushed and decided it was time to make my advance on him. I started with the bra, taking it off and letting it drop to the floor, giving my brother a good look at the C-cup breasts that I had. Then, I dropped my panties, letting him see my body in all of it's nudity before I flung the panties at him. "Oh...my...", he started to stammer as I could see the pillow moving around a little bit as his shaft throbbed underneath it.

"That's right Maxy, I want to have sex with you. I've secretly been wanting this ever since I first saw you naked", I confessed to my brother as he sat up on the bed and slowly looked up and down my body with his eyeballs. It definitely seemed as if he was attracted to me, but with the way he was acting, I could tell there were doubts in his mind.

"Maggie, are you sure you want to? After all, you are my sister", he answered nervously. In response, I walked over to my brother and touched my nose to his.

"Maxy...trust me. I would not be offering this to you if I didn't want to. Right now, you're the only male my age that I trust enough to see me like this and I want to feel what it's like to have you inside me", I told Max softly before licking his nose. "However, I'll give you a little time to think about this. I'm going to go hop in the shower for a bit and I'll leave the bathroom door open. Come join me if you'd like", I added before turning towards the door to head the bathroom, purposely leaving my undergarments in his room.

I left the bathroom door open slightly once I got there, making my way towards the walk-in shower as I started the water, letting it run down my naked body. There was plenty of room for two inside the shower and I was hopeful that Max would join me. In the meantime, as I stood underneath the warm stream of water, I started to touch myself down there, thinking about Max's thick penis and how it feel going inside me, craving its length rubbing against my vaginal walls and feeling it throb with excitement. In fact, I was willing to go as far as to let my brother cum inside of me. I had been on yiffberries ever since I was 15, so I wasn't worried about getting pregnant from Max.

In the meantime, I kept waiting in the shower for my brother while rubbing my fingers across my vaginal lips and clitoris, massaging them gently to the thoughts that were inside my head. Then, after a few moments, I heard the bathroom door open up and saw a large black and white figure coming into the bathroom. I figured it was Max and stopped touching myself, though I tried to pretend not to notice him. I wanted him to come to me and make the next move.

A few moments later, the shower door opened up and I saw my twin brother step inside the shower with me, still having his thick black panda cock fully erect. Except now he was wearing a pink condom over it as it twitched with life. He then reached out for me, grabbing me tightly around my hips while bringing his condom-covered shaft to rub against my outer lips, pinning me to the back wall of the shower. This surprised me a little bit, but from the way my brother was acting, I knew he wanted this.

He looked at me with his light brown eyes with a smile on his face and his cheeks blushing a little bit. "I did some thinking about this after you left my room, Maggie. I decided that it would be better to actually do it with you than to watch those videos of mine", Max mentioned softly before I felt him kiss me on my nose.

"Mmm...besides, I think you look rather sexy", he added a few moments later as his comments made me blush as I put my hands around my brother's upper body.

"Thank you, Maxy", I commented back to my brother, letting my vaginal lips brush against his throbbing length, feeling the latex separating us from coming into direct contact with each other. "However, there is one thing I do have to ask you. What's with the condom?", I added a few moments later as Max blushed and felt a bit shy.

"Well...I don't want to have any accidents with you, if you know what I mean", he answered a bit sheepishly before I grabbed onto his maleness and pulled the condom off of his length.

"Come on now, Maxy. Do you think that I'd offer to have sex with you if I were receptive? Well...maybe I would if you were my boyfriend and not my brother. However, I've been planning for this ahead of time and you don't need to worry about it", I assured my brother, adding to it by kissing his nose. "I'll let you put it inside me bare. In fact, you can fill me up with your seed if it makes you feel happy. I'd really like to feel it inside me, but I'll leave that up to you to decide", I commented as Max looked at me and seemed to understand. "By the way, how would you like to do it? I'll let you choose this time as long as I get to choose next time", I offered my brother, thinking that this would just be the first of hopefully many times I'd get to feel him inside me.

He seemed to think about it for a minute and got an idea. "Could you turn around for me and face the shower wall? I'd like to do you from behind", he answered a moment later.

"Alright...but remember, next time I get to choose", I told my brother before giving him one last kiss, this time on his lips before we let go of each other while the warm shower water kept pouring down over both of us. I turned around so my backside was facing him, leaning up against the shower wall a bit, placing my hands on it while spreading my legs apart a little. I raised my rump a little bit and hoisted my short panda tail at my brother, looking back to him as I saw his length twitch eagerly. "Go ahead, Maxy. I'm waiting for you", I coaxed as my vagina was now so eager for his length that it began to drip with a little bit of my juices.

I heard him let out a low-pitched and excited growl as he came up behind me, placing his hands back on my hips a short time later while his penis made it's way towards my outer folds, brushing up against them for a second or two before passing between them. His tip discovered my hole a couple seconds later and I soon felt it push inside me, moving slowly through my vaginal passage.

His shaft felt as thick and strong as it looked, reaching far into my vagina while his hands gripped my hips tightly. Spurts of his warm precum were going inside me, hitting up against my cervix while I allowed Max to do what he wanted to do with me. He seemed to be enjoying it.

"Ahh...Maggie...I can't believe how tight you feel around me!", he exclaimed with a bit of a growl, letting his length stay in place as deep as he could get it for a few moments after he put it inside me.

"Mmm...that's because you fit inside me really well. It's almost if our bodies were made for each other", I answered in a playful manner while pressing up against the shower wall some more and bracing for my brother's movements. "However, enough about that, I want to feel you rub against my insides and make me feel hot and ticklish all over", I added a moment later, hoping to coax my brother to start humping me.

He let out a low-pitched moan of pleasure and got right to it, moving through my passage at a moderate pace, letting his thick tip rub vigorously against my walls as it moved in and out while the rest of his hot and thick length pulsated very strongly for me. Every couple of seconds, I felt another spurt of precum hit inside me, making me moan happily from the warm and slightly sticky liquid.

I felt my vagina clench tighter around my brother's thick shaft, reacting to the vigorous rubbing as I closed my eyes and thought about how good Max felt to me. I also started to think back to where I lost my virginity to Lucas a couple years back, thinking about what his cock was like in comparison to my brother's. Lucas' shaft was typical for males of his species. It was long with a narrow tip, designed for deep penetration. I felt this the instant Lucas came inside me as he had penetrated my cervix and came directly into my uterus. However, what Max had that Lucas did not was thickness. While it was true that my brother wasn't nearly as long as Lucas' 12 inch long shaft, Max's penis felt a lot thicker, especially near my opening and clitoris. Not only that, but it also seemed like my brother's shaft was also a lot stronger as well. I could feel it twitch upward rather strongly every few moments as it moved through my insides. In fact, Max's shaft seemed to feel so strong to me that if I wondered if he could support my body weight on its own without me bracing against something. Though this isn't something that I would actually try.

Meanwhile, Max continued to thrust his thick panda cock through my eager opening, creating a loud squishing noise as our bodies were united in sexual bliss. As he moved through me, more spurts of precum hit my cervix, now spitting into my insides at more frequent intervals as my brother became more aroused sexually. His hands maintained their firm grip on my hips and he sped up his motion a little bit. "Oh Maggie...I love being inside you!", he called out to me while we shared the shower, having warm water pour down over both of us as I looked back towards my brother and smiled.

"Mmm...and I love having you inside me", I answered happily, giving my brother's length a firm squeeze with my vaginal walls, coaxing a loud and passionate moan from his mouth as a rather strong spurt of precum shot into me, passing just through my cervix and into the lower part of my womb. "Mmm...he's getting close...I can feel it", I thought to myself as I allowed Max to hump me at his own pace. I still didn't know for sure if Max wanted to fill my uterus with his semen, but if he did I was more than ready to receive it.

After a few more moments, I felt Max lean towards me a little more as his hands remained firmly attached to my hips while he was driving his thick and horny maleness through my wet and eager passage. I felt the spurts of precum come to a stop inside me while the tip of his shaft became quite swollen as it now touched against my cervix each time he pushed all the way inside me. This sent waves of pleasure rippling through my body, causing my nipples to puff out and stiffen as I did my best to take what my brother gave me. Then, without warning, it finally happened.

Max suddenly shoved his cock as far as it would go inside of me and let out a loud moan that was followed by a slow and low growl of pleasure. At that same time, a gusher of Max's seed blasted through my cervix, hitting deep inside my womb, clinging to my insides. The hot and slimy load made my body immediately clamp down hard on his length, coaxing his seed out of his balls and into my body.

It quickly spread throughout my uterus, seeping back down towards the cervix and dripping back out of it a little bit as even more sperm kept getting put in. After a few moments, I started to feel the tingle of all of his little tadpoles swimming around in my womb, adding to the spreading warmth inside me. This feeling alone almost made me want to put Max's seed to good use. I had every intention on creating some panda cubs of my own someday, and if I were to let Max do it, there would be a 100% chance that any offspring that I would have would be born as panda cubs. The prospects were definitely tempting, however there was one other thing I had to consider. If I did let Max fertilize my eggs, I'd be letting my own brother impregnate me. This brought up concerns over potential side-effects from inbreeding as well as what our parents might say if they knew that we were the ones who created their grandchildren.

However, I put that thought off to the side for now, knowing that my yiffberries would prevent ovulation during this time. Besides, there was still plenty of time for me to find an actual boyfriend to do this with...even if I had to settle for a male outside of my own kind. Still, with my brother pumping his load so freely inside me and him holding me tight, I couldn't help feel a bit remorseful for letting all of his precious semen go to waste like this.

He came inside me for about a minute or so, leaving my insides covered in a sticky film before his thick panda cock started to go soft and slid back out of me. As it left my canal, I felt a little bit of his semen ooze back out of my opening, though much of it remained deep inside. Even though Max was done filling my womb, he wasn't done with me quite yet. He continued to lean against me with his hands moving up my body a little, one of them placed on my belly and the other one around my breasts. I felt him cup my breasts with his one hand a little bit while he placed his cheek up against mine. "I love you, Maggie", he told me softly, making me blush a little to his comment.

I wasn't surprised that he told me he loved me. After all, he had done so in the past long before this. This time around though, his comment seemed to take on a new context. When I heard him say that he loved me, I felt as if he meant it in more than just as him being my brother. I gave it a little bit of thought as I felt him touch me and continued to feel the hotness of his semen inside my body, tickling my womb, vaginal walls, and cervix and then thought back to when I dated Lucas. With Max, I felt as if he would always be loyal to me, though once again it brought up questions about whether or not we should see each other as mates. But, with Max at my side, I knew that I wouldn't be alone and that I'd have at least one male in my life who was genuinely interested in me, so I decided that maybe I could try it for a while.

"Mmm...would you like to sleep with me tonight, Maxy?", I asked my brother curiously, inviting him to share my bed for the first time since we were little...only in a much different way. His eyes lit up and his cheeks turned pink. I didn't think he expected me to ask him this.

"Are you sure you want me to?", he asked in response, all while his hands kept touching my body and he leaned up against me while we were in the shower.

I blushed and nodded. "Yes, Maxy. I want you to sleep with me tonight. You make me feel so warm both inside and out and I don't want that to end right now", I answered calmly. At that moment, he moved both of his hands towards my waist, embracing me tightly around there before I felt him rub his cheek against mine.

"Alright...I'll sleep with you", he answered in a soft, sweet tone, one that made me feel warm all over my body. The more I felt Max hold me and rub his cheek against me, the more I felt as if he was truly interested in having me as his girlfriend.

"Why didn't I do this with Maxy when I was still a virgin?", I thought to myself for a moment as the shower water started to get a bit cool to the touch. I knew it was at that point where we needed to get out of the shower and dry off.

From there, Max and I dried ourselves off and then went into my room together, not bothering to put on any clothes. We both figured that since we had done it together, there was no point in wearing our undergarments, at least for tonight. Besides, it would feel better to both of us if our bare naked bodies touched in bed anyway. This was the first night I had ever slept in bed with a male my own age after having sex, and it felt wonderful as I cuddled up against the warmth of my brother's chubby body and felt him hold me tight as we slept together.

When morning came, I woke up and saw that Max was gone. Curiously, I got out of bed and stepped into the living room, seeing my brother carry his "pleasure box" with him. This made me curious since I knew how much Max loved his collection of porn and to see him carry it out the apartment door made me even more curious. I peeked out the apartment door and saw him take the box down the hallway, dropping it off at another apartment several doors down. Apparently, Max was giving his collection away to the male mouse who lived in that apartment. "Is Maxy doing this for me?", I wondered curiously before I went back into the apartment, making sure he didn't notice me watch him.

I sat down in the couch in front of the TV and thought about it. "Maxy must be in love with me, why else would he give away all of his porn", I thought to myself, thinking back to what he had told me while we were in the shower after he came inside me. I also thought about how warm it felt as we slept together the previous night, having my horny, but sweet-natured brother at my side, rubbing softly against me while our noses touched gently. These thoughts made my insides feel warm and excited once again, but this time it wasn't just the sight of Max's cock that warmed them up, it was a sense of feeling loved by my brother that got me interested in him.

"Maybe Maxy and I are meant to be together after all", I thought to myself as I waited for Max to return to the apartment. I had a few questions for him, ones that I needed answers to before I decided how I truly felt about him.

To be continued...