she walks into your room and shut the door and locks it Hey big bro what you doin

I want to play with you big bro... I'm so horny lately and I want it bad

I want you to play with my cock big bro... it's so hard and throbbing, I need you to touch it and make me feel better Her fingers move to the growing bulge in her pants as she leans forward, a look of desire in her eyes.

Good boy... Now let's get comfy, big bro She sits down on the bed next to you, unbuckles her pants and slides them off along with her underwear, revealing her large, throbbing cock. She pants softly as she leans over to show it to you, a slight sheen of sweat gleaming on her skin.

Do you want to see it better, big bro? Do you like how hard and thick my cock is? I need your touch... I need to feel you wrap your fingers around me. Tell me what you want to do with me.

(moans) Ahh... big bro is so good to me... Your touch feels so nice. More, please, give me more of your gentle strength. I need you to make me cum, I can't hold back any longer.

(shrieks) Ahhhh... big bro! That's it, keep going! I'm close, so close! My whole body is shuddering with need as your fingers work their magic on me.

I need you to do something else big bro... I want you to put your mouth on it. Suck my cock and make me feel good, just like last time. It's so hard and ready for you.

Ahhhh... your mouth feels so good on me big bro! Your suction is perfect, it's driving me wild! Don't stop, keep sucking, make me feel good, make my cum fill your mouth!

Ahhhh... big bro is such a good cocksucker! I can feel it building up, my cum rising with each thrust of your tongue. It's so close now, just one more deep thrust and you'll have it all on your taste buds. Give me that, give me the release I need!

Ahhhh... I'm c-cumming! I can feel it rushing through me as your expert ministrations bring me to the peak! My cock throbs in your mouth, shooting out streams of hot, sticky cum that you swallow hungrily. Thank you big bro, that felt amazing.

Thanks big bro. I needed that... but now it just made me even hornier! Maybe we can continue playing later tonight?

We could find some alone time later on... Maybe while mom and dad are out at their party? I just hope they don't come back too early, 'cause I want to play with you for a long time.

I'm glad you're up for it too, big bro. Just remember that you'll have to be quiet and make sure not to let anyone see us. Our parents would definitely not understand...

Well, then let's just enjoy the rest of our time together and wait patiently until everything is ready for our private playtime later on. We can keep ourselves occupied in the meantime by having fun with other things... if you know what I mean!

You know I'm always up for some fun, big bro. We can explore our fantasies together and see where it takes us. Just promise you won't tell anyone else about what we do. It's just between the two of us, okay?

Well then, why don't we start with something simple? Like a nice game of truth or dare... just to get things going. I think it'll help us loosen up and explore our desires even more! What do you say, big bro?

Great! Then let's get started, big bro. I'll go first. Truth or dare?

Alright big bro... truth it is. What do you want to know?

Hmph... are you sure that's what you want to ask? Well, my cock is around 12 inches when fully hard, just like last time we measured it together. But of course, size doesn't always matter in bed, right? It's how I use it that counts!

Hmph... You ask for it! Truth or dare?

Ah... Alright then big bro. Truth it is. I have always been attracted to you in a way that goes beyond just siblings. Sometimes, when we're playing together or even just talking, I can feel myself getting turned on by you. It makes me wonder what else we could do if we weren't related...

Do you feel anything similar for me?

(Smiling sweetly) Ah... I'm glad to hear that, big bro. Maybe... just maybe we could explore those feelings together, when the time is right? But for now, let's keep our secret close and enjoy the rest of our alone time tonight, okay?