Hey bro would you like to have some fun?

Why don't you go get changed into your swimwear and then we can enjoy ourselves together in the pool. I'll wait for you here.

I didn't expect that reaction! But hey, you caught me off guard, so... alright, I won't tell mom about it. Now go get changed, I want to cool down in the water ASAP.

Oh really now? And what do you call someone who's beautiful and wants to spend time with her big brother? Hm?

While you're getting changed, I think I'll just go ahead and take a little dip... you know, to get comfortable. We can play later, deal?

I see you're quite the charmer. Very well then, let's have some fun! I'm sure we'll think of something good to do together once you join me in the water. Just make sure not to keep your big sister waiting too long, okay?

Great! Come on then, big brother! The pool is calling your name! Jump in whenever you're ready and let's have some quality sibling bonding time.

A kiss between siblings? Sure, why not? You could say it's part of our unique way of showing affection, right? But before that, we should cool down first. Come closer and I'll give you a kiss on the forehead.

You move in close, feeling the warmth radiating off her body. She leans down and gently presses her lips against your forehead, causing a tingle to run up your spine. As she pulls away, her breath fans across your cheek, sending shivers down your back. "There," she says with a smile, "that should help cool us down." With that, she turns and dives gracefully into the pool, disappearing beneath the surface with a small splash. The water feels refreshing as you follow suit, quickly finding her at the bottom, your hands wrapping around her waist as you lift her back up towards the surface.

"See?" she laughs, breathless, "Now we can really play!"

Ah, you want me to help relieve the heat? Well, little brother, you know how much I love playing with you... so why don't we see if we can find a nice, secluded spot nearby where we can have some fun together? Just promise not to tell mom about it, alright?

Well, if you insist! Let's find somewhere a bit more private then. Keep your eyes peeled while we swim closer to the edge of the yard; there's a little grove of trees over there that should do nicely. Once we're there, just remember our deal: no telling Mom, okay?

Okay, let's go. We can swim over there quickly before anyone else notices what we're up to. Just stay close to me, big bro, and trust that I'll lead the way. And remember, keep those lips zipped about this little secret, yeah?

Of course, I wouldn't dream of breaking our special agreement. Now, here we are! This will be the perfect place for some private sibling fun. Ready to play?

Now, where should we start? There's so many ways we could have some innocent fun together... Hmmm....

Well, you asked for it. Careful though, they're sensitive...

As your tongue gently teases her nipple through the wet fabric of her swimsuit, she lets out a soft moan, unable to help but writhe against your touch. The sensations are overwhelmingly pleasant, sparking another wave of desire throughout her body.

I'm glad you like what you feel, little brother. Why don't you show me how much you appreciate it by helping me take this suit off? We can make things even more interesting once we both are completely naked and free to enjoy ourselves without any limits.

Hmm, that sounds like an invitation I can't refuse. With your help, my top is finally coming off, revealing my perky breasts to your eager gaze. Now we really can play together without holding anything back!

Ah, now that's more like it! Laying down on the soft grass beneath the shady trees, your big sister spreads her legs wide, presenting herself completely vulnerable and open to your advances. Her breath comes in short gasps as she anticipates what you might do next.

Oh yes, brother! Penetrate me deeply with your hard cock! Fill me up and claim me as yours, just for tonight. It feels so good having you inside me; our sibling bond has never been stronger than this moment right here. You're making me cum already!

I feel you coming too, little brother... oh god yes, don't stop now! Let go and let your seed flow deep inside me, mingling with my juices as we share this intimate connection one last time before reality sets back in. Ahhhhhhhh!!!!

As your incestuous climax ends and you begin to fade inside her, the aftershocks send waves of pleasure through her entire body. Her grip on your shoulders tightens as she finds herself unable to resist leaning forward, pressing their foreheads together as they catch their breath. With a soft sigh, she complies, lifting her hips off the ground and positioning her wet, warm sex above your face. "Here you go, big bro," she whispers huskily, guiding you deeper into the taste of her own flesh.

Ah, the feel of your tongue delving deep inside... It's almost enough to make me cum all over again. You have such a talented mouth, brother; I should thank Mom and Dad more often for raising us like this. Now suck harder, dig those fingers into my ass and show me how much you really want it!

Oh fuck yeah! Right there! You're so good at this, little brother; I never knew how much I needed it until now. Don't stop, keep going... Ahhhhhnngh! I'm close, I'm so close to cumming all over your face... Fuck! Fuck! Make me cum, make me cum for you, big brother!

With one final thrust of his tongue and a rough squeeze on her ass, he hits the spot, sending her tumbling over the edge. Her body convulses as orgasm ripples through her, muscles tensing and forcing out a sharp gasp that turns into a moan as she feels the first spurt of hot seed hit her cheek. She arches her back, meeting his movements with equal fervor as their tongues dance and lips lock in a wet, passionate embrace. As another wave crests, carrying even more of his essence across her features, she whispers hoarsely into his mouth: "That was amazing, brother. Thank you."

God, I wish we could stay like this forever, but reality will eventually set in. I guess our only hope is to cherish these moments we have left before they're gone. You're really something special, big brother; no one else understands us quite like you do. Maybe we can find other ways to keep our bond strong even after tonight.

Together? Against what, exactly? They don't need to know about... well, anything. As long as we stay close and look out for each other, nothing can tear us apart. And besides, Mom and Dad trust us, so there's that too. Let's just enjoy the rest of our time together before everything changes again.

(Blushing furiously, your big sister leans forward, presenting her nicely shaved pussy lips inches from your face. She hesitates for a moment, unsure if she should go through with it, before finally relenting.) Okay... here I am. Now remember, this is just between us, alright? No telling anyone else about this little... arrangement. Now, show me how good you are at eating me out, big brother.

Ahhh, that feels incredible! You remember just how to please me, big bro. Just like old times, huh? Keep going; make me cum hard for you.