Brittany, step-sister - Development App

I laid on my bed next to my friend Katie, as my other friend Allie sat on the floor in front of us. The two of them came over to my house to stay for the weekend since my parents were out of town. I mean, they weren't SUPPOSED to stay over, but it wasn't a problem if Mom and Dad never found out, right? Besides, my pesky younger brother Ryan was the only other person in this house. He's usually locked away in his bedroom working on all this crazy things with his phone. Says he's gonna create "The next big thing". Whatever, as long as he stays out of the way of me and my friends, It'll be fine.

"So, the night is young, what do we wanna do first?" I ask my friends.

"We could watch a movie!" Katie recommended, basically shouting. She was a usual dumb blonde, always energetic.

"I brought those cookies too. We could make those, and then watch that thing Katie was telling us about in the group chat." Allie added. She's a lot quieter than Katie with her long curly brown hair, but she was also the smartest. Never has Allie ever been influenced by a second opinion.

"I love it! Let me use the bathroom, and I'll meet you downstairs in the kitchen?" I say.

"Deal." We split out sperate ways temporarily as I do what I need to do in the bathroom. I wash my hands in the sink, and take a look at myself in the mirror. My blue eyes stared back at me as I looked at myself. From my dyed blue hair floating just above my shoulders, to my nice big tits being held in my my black tank top. I'm a bad bitch, like god damn. I need to look at myself more often. Now blazing with confidence after my little hype up session, I decide to join the other girls downstairs as promised.

"Hey, Britt!" Ryan stopped me in the hall.

I sighed. "What do you want, Ryan?"

"Nothing really. I just wanna know who you invited over. Can you tell me?"

"Why's it matter?" I snapped.

"I doesn't, I was just curious..."

I sighed again. "Allie and Katie. My friends?"

"Wait, Allie and Katie who?" He asked, puzzled.

"Um... Allie White and Katie Davidson?" That's weird, my friends are here all the time. He definitely knows who they are.

"Oh yeah! That's right! I forgot." He rolls past me into the bathroom, typing on his phone. "Thanks!" He says as he closes the door. That was weird. Whatever, I guess

***

"Damn, these cookies are good." Katie says as she stuffs her face.

"Right? I can't believe you've never had them before." I said to her. "We're gonna have to make these again."

"Let's get them upstairs before they get cold."

Allie got the cookies onto a plate, as Katie and I got the dirty bowls and trays into the sink. Once everything was set we turned to walk back through the living room and upstairs.

But that's when we stopped. Like, literally, stopped. It was so sudden, half the cookies we just made shifted off the tray Allie was holding and onto the floor. What the fuck is happening?

That's when Ryan came down the steps carrying a massive smirk across his face. Was he behind this? I felt like screaming at him, but I couldn't. My body simply wouldn't let me! All I could do was watch as he got right into Allie's face. Without saying anything, he picks up one of the few remaining cookies on the plate and eats it right in front of her. "Very nice." He says.

He takes a few steps back to admire me and all my friends, then pulls out his phone and begins typing. "This is gonna be a fun weekend." He says, laughing to himself. What the hell is that supposed to mean? What the fuck did this little pervert do to us? I swear, when I get out of this and I get my hands on him, I'm going grab him, and-

-DOWNLOAD COMPLETE. **** MODE ACTIVATED.-

I hear that in my mind. I fall to my knees. I am Master's ****.

"No. Fucking. Way." Master says. He gets right in my face, staring directly into my baby blues. "Britt, can you hear me?"

"Yes, Master." I say.

He hops to his feet. "Holy Shit, Holy shit!" He jumps around in excitement for a moment, before regaining his cool. "Okay, Ryan, calm down. Go through your tests."

Master clears his throat. "All three of you, stand up."

"Yes, Master." We say in unison. We all rise together for Master, too.

"Okay, Okay. Allie, clean up the cookies."

"Yes, Master." **** Allie obeys, and begins picking the floor cookies. I have a perfect view of her round ass hanging out of her black shorts as she is completely bent over in front of me. Master wastes little time enjoying one of his new **** toys, walking over and squeezing her butt in front of myself and **** Katie. He has his way with it, rolling it around like play dough and making it jiggle. A few slaps later, Allie stands up and takes the plate of dirty ground cookies to the kitchen in the hopes to discard them. He lets her go, and turns his attention to me.

"Okay, Britt. Its your turn. I've always wanted to do this." He takes his hands and places them over my tits. He plays with them, mangling them for his own pleasure. He's loving it, so I am too. I want to moan out loud right now, but that would complete ruin Master's moment. Instead, I stand there, straight-faced, as Master has with way with me. Shortly after he's done with me, he does the same to Katie, and then again to Allie when she walks back into the room. We are now lined up shoulder to shoulder, and Master looks at his prizes.

"Okay, one last test. Just in case." Master says to himself. "All of you, strip to your underwear."

"Yes, Master." We all say. I begin by gripping my tank top, ripping it off over my head and revealing my pink bra to Master. Next I work on my leggings, peeling them down over my thighs and onto the floor. I also kick off my socks, just for good measure. I face Master again, and look to see his jaw on the floor. Soon, my fellow slaves are in their bra and panties too, and Master simply admires us.

"I can't believe the app actually works!" Master cheers to himself. "Now, It's time for the fun." He walks out of our vision behind us, and I can hear him plop onto the couch.

"Katie and Allie, come over and sit next to me."

"Yes, Master." They say as they disappear from my left and right. I can hear them plop onto the couch as well.

"Press yourselves against me."

"Yes, Master."

After a few moments of shuffling, Master speaks up again. "Britt. Get on your hands and knees, crawl over here in front of me."

"Yes, Master." I fall to my knees with a thud. I do a quick 180, with my tits swinging in the motion. Sure enough, Master is sitting there patiently, a **** on each arm and an ass in each hand. His cock is also out in front of him. I crawl over so that my head is basically resting on his knees.

He spreads them, opening up his cock for me. "Suck my dick, Brittany."

"Yes, Master." I slowly move my head forward, and reach up with my hand. A few strokes on Master's cock, and suddenly I find his member in my mouth. I don't usually give head, but Master gets what Master wants. I bob my head up and down on his cock. It was already flowing with pre-cum, and loved the taste of it in my mouth. I got so into it, I barely felt **** Katie reach down and unhook my bra. With my big titties out before my Master, I continue slurping. I'm really hoping I get his load on my face soon!

After a few minutes, Master hasn't budged. "This isn't doing it. I need more."

Master breaks free from the holds of his other slaves, and pushes me backwards. My tits fly up as I land on the carpet in the center of the living room. Master sends my legs up into the air, and strips me of my panties. My little virgin pussy is on full display for him, and he is ready to conquer. He shoves his dick into me, and starts fucking me right in the living room.

"Ah... Fuck sis..." He moans as he lunges his little sword into me. I do not fight it: This is what I've always wanted. I simply lay on the floor, my tits bouncing with each stride. I watch the happy look on Master's face as he plunges into me, hopefully enjoying every pump as much as I am.

"Dammit..." Master says. "I'm gonna cum!" He pumps even faster, causing me to let out some massive moans. He goes and goes and and goes, trying to explode inside of my pussy.

"Brittany, beg for my cum!"

"Yes... Master! Please cum inside of me! I need it so bad!" I shout. It was true! I'm so **** for Master's juicy cum! I want it to be inside of me!

"Ugh... AH!" Master shouts. His white juice begins flowing into my pussy, causing a great eruption inside my no longer virgin body. He cums so hard, his cum actually comes back out of me, creating a beautiful white cream pie around my pussy lips. Master pulls out of me, exhausted from the work he's done, and takes a moment to breathe. In between breaths, he gets out, "Britt, thank me for cumming in you."

"Yes, Master." I get out, panting just as hard as he does. "Thank you for using my body, Master. I will be your cum **** whenever you want, Master."

"Holy shit, I just fucked Brittany!" Master says to himself, the sudden realization washing over him. Master looks at me, then looks at his other slaves. I can see his face light up with a new idea.

"Okay, Allie and Katie, we are going to go upstairs for round two. Go meet me up there."

"Yes, Master." The two slaves understand their fate. They walk their mostly-naked bodies up the steps and probably into Master's bedroom.

"As for you, Brittany. You have a few jobs. Firstly, you going to clean all the cum out of your body using any means necessary. Then, you will clean the cum off the floor and couch and get rid of all evidence that I just fucked you. When that's done, take care of all the dishes in the sink and make dinner for me. Come upstairs and get once that is done, and I will let you suck my dick while I eat. Understand?"

"Yes, Master." I comply.

"Wonderful. Now go." We both stand, and I instantly I began removing Master cum from my body. As I do so, I watch Master run up the steps for his next round of fun. God, Pleasuring Master was so great, and I'm so glad the other slaves soon will experience what I did. This is going to be the best weekend ever!