Big Sister

I’ve been getting a lot of messages asking about our story. So here it is. For the sake of privacy and ToS I won’t be using real names or stating any ages.

I’m Amanda. My Brother is Dan. And our girlfriend is gonna be Brooke. I should also note that my brother and I are fraternal twins and I was born first, hence “Little brother.” But it honestly doesn’t matter.

Anyways, it was summer and my brother and I were done with school for the year and we were old enough that our parents could leave us home alone for extended periods of time. He was dating this girl from school and had been for a while. Having seen them together I could tell she was using him but he was happy, and I was dumb so I let it go. First week of summer goes by and nothing happens, everything is normal and he and I hang out and do stuff with our mutual and separate friends. Second week of summer is when shit hits the fan. He goes out on a date with the girl and I’m not exactly sure what was said or done but he called me to come pick him up. He didn’t have his license yet but I did and I had access to both our parent’s cars. So I go pick him up and he’s standing on the sidewalk a block away from his ex’s house. I kinda brush it off cuz I’m tired but when he gets in I can tell he’s pissed. I don’t say anything, thinking he either doesn’t want to talk about it or doesn’t want to talk to me about it. 5 minutes into the drive and he starts talking, more like ranting, and gets louder and louder until it’s clear he’s a bit out of control. I pull over into a parking lot and let him go off. He’s basically confirming all the stuff I suspected and I feel my heart break for him. He’d told me he had plans for this girl, and being the amazing sister I am, I supported him. It all came out. She’d been using him for money, as our parents are very well off and, not to brag, but we come from money. Anyways he goes on for 10 minutes before he starts calming down, I think he just couldn’t yell anymore. I talk to him, make sure he knows I’m there for him and hold his hand. It was weird, we weren’t physically affectionate really so it must have surprised him cuz he shut up and just stared at me then at our hands. I can’t remember how it happened but something clicked that night and we ended up in the back seat of our dad’s car. We didn’t fuck but it was hot. We kinda snapped out of it when my phone rang and I saw it was our mom calling and so that ended the night for us. On the rest of the drive home my brother was confused. I’d come out to him as lesbian a while before. To be fair, I was a lesbian, I’d never been attracted to men, I never had fantasies or dreams about men that I could remember, and I’d been pretty open about it with him.

After that night things changed. We got very physical. Holding hands, leaning on each other, lap pillows, cuddling, it all happened in like the span of 2 weeks. But nothing serious happened for a while.

Fast forward about a year and I’d started dating Brooke. I came out to our parents and they were very supportive. My brother and I were still physical, it freaked our parents out when they got home from the trip because it was such a change of behavior. Anyways, Brooke and I were dating, my brother hadn’t dated since the bitch broke his heart but he was happy. One night, like march or something, there was a thunderstorm. I hate thunder. I’m a big baby when it comes to thunder and I’ve never gotten over it. When we were little I’d sneak into my brother’s bed whenever there was a storm but I hadn’t done that in years. This storm was different. The lightning got real close and the thunder was so loud I went to his room and got in bed with him. He didn’t wake up but in the morning he had this expression like he knew why I was there. Best sleep I’ve ever had. I ended up sleeping in his bed until we moved out and gout our own place, and I guess I just didn’t stop sleeping in his bed :P.

About a week after the storm we were in his bed and cuddling and I could feel him poking my butt. It had happened before but he always moved or shifted to not have his dick poking my butt. This time he didn’t. I knew he was awake and it turned me on like you wouldn’t believe. I’d told Brooke about the make out session in our dad’s car and she kinda shrugged it off, I thought for the longest time she didn’t care. One thing led to another and my brother is kissing me again. Things get hot and we go further. I take his shirt off, he takes mine off, etc. That first time he entered me… I know it’s cliche, but I saw stars. It was so different from what I knew. Dildos and toys can do a pretty good job of replicating it, but they really fall short. We went for a good hour, and by the end we were sweaty, panting, and I was sore! I felt so guilty about it, not that I’d fucked my brother. I felt guilty about basically cheating on Brooke. I texted her almost immediately and she just responded with “I’m coming over, we need to talk.” And as anyone knows, when your partner says those words, it’s never good. I tell my brother and we take showers, separately. I’m just done drying my hair when I hear Brooke’s voice calling. I run downstairs into the entryway and see her in a really cute tank top and the tightest jeans ever. My guilt nearly killed me. She sees me and runs up and hugs me. I’m confused. She should be furious. She’s not. She starts asking about what it was like and I just can’t speak. She’d never ever even hinted at being curious and here she was grilling me about sex with my brother. He hears her and comes down to try and explain, but she hugs him too! At this point both of us were like “WTF!?” Turns out, my Brooke was a deviant! Like holy shit I was both relieved and freaked out! How the hell had I missed it!? I tried to think of when she might have let something slip but there was nothing. So she starts going off on how she’s fucking happy about what happened! I’m a girl and even I don’t understand women!

So that’s how Brooke found out. That night, she slept at our place, with us, in my brother’s bed. It was so weird, but I was happy, and everything was ok. The next few weeks were a learning experience for me. Brooke started sending me links to bdsm sites, both porn and for gear. She opened up about her fantasies and let me tell you, some of it scared me. She is a complete sub and masochist. Like 100%. There’s not a dominant atom in her body. She not only sent me this stuff, she sent it to my brother too. He took it well and I guess he’d always had a thing for Brooke because he seemed to accept it way faster than he should have. Things went like that the rest of the year until we all graduated. My brother and I had sex here and there, obviously living with our parents we couldn’t be careless. Brooke and I experimented with me dominating her. Let’s just say I’m not good at it, but she was so happy. We all were really.

We all graduated and a week later my brother, Brooke and I had our own place. It’s pretty nice, secluded and private. It was a graduation gift from our parents and since they knew about me and Brooke, well… I try not to think about what they know about me and Brooke. That first night was the first night Brooke fucked a man. It was all of our first threesome, and the first step in Brooke and I becoming my brother’s pets. He’s a natural. Really he is. I know some subs can’t find fault with their doms but he really is good. He was sneaky and bought collars for me and Brooke. They were and still are high quality leather and steel, padded inner ring and thin enough to feel like a choker. He had us strip and kneel. This was the first time I was a sub but it felt so right. He put the collars on and pulled us into a hug. Being naked in the middle of the living room was weird at first but once reality set in, it was like a flood between my legs. We watched a movie, I don’t remember which one. Brooke and I were squirming so much. We were both so turned on it was almost unbearable. A couple of times I tried to get up to take care of myself but my brother wouldn’t let go of either of us. When the movie finished he hooked a finger into the front loop of our collars and dragged us to the bedroom. He started kissing me while Brooke watched. His hands felt like they were everywhere at once and when he was done he pushed me onto the bed and did the same with Brooke. He had her on her hands and knees her head between my legs and he fucked her. That night is such a blur but it was amazing. The room smelled like sex the next morning and that was that. Brooke wasn’t my girlfriend anymore, she was our girlfriend and his pet as well as me.

We’ve grown over the years but the dynamic has never changed. The only time it did was 3 years ago when I learned I’d probably never have kids. It hurt, a lot, but now I see it in a new light. I won’t be responsible for bringing an incest baby into the world. That month was rough but obviously I e come to terms with it and since Brooke is a fertile little freak, it’s all good. Her kinks are way more extreme than mine and my brother seems to indulge her and enjoy most of them himself. I participate unless it’s too extreme and I always have fun. We go on normal dates and everything. We told our parents that Brooke is dating my brother now. They were confused but I swear I could see something in the way they looked at my brother and me. Maybe it’s my imagination or maybe they know and are ok with it, I don’t know and I’m never gonna bring it up.

So that’s the story of how I fucked my brother, he fucked my girlfriend and we both became his pets. I know there’s not a lot of juicy details but like I said, most of those first times were a blur of emotion and pleasure haze. Also sorry about being rambly in some place.

If you want to know anything else about us, just keep in mind that I will never post pictures of any of us, nor will I ever disclose our location, or real names. ❤️💋