Kelsei: It’s hot out!

Jake: I know!

Kelsei: It’s no fair you get to go shirtless!

Jake: That’s why guys are superior. That, and we got actual pockets.

Kelsei: Ugh, I can’t take it.

Kelsei takes her shirt off, revealing her white bra and tiny pink bow in the middle. Jake gives his sister a glance.

Jake: Fine, just keep your bra on.

Jake and Kelsei sit and watch TV for 20 minutes on a hot summer afternoon. Sweat pours from their bodies. The TV briefly shows women in bikinis doing a car wash.

Kelsei: That looks fun.

Jake: I can’t even move!

Kelsei: When is the A/C repair guy coming?

Jake: Next week.

Kelsei: Shit. I keep sweating!

She fans her bra, noticing her tits are soaked.

Kelsei: Oh my god, sorry Jake. You’re gonna have to put up with it.

Kelsei undoes her bra and lies back on the couch. Jake hesitates to complain. His groin stirs and he leans forward to hide his growing erection.

Jake: Oh come on! Can’t you wear something? You’re my sister!

Kelsei: So? It shouldn’t matter. You can’t get attracted to your siblings. Biology isn’t built that way.

Jake: Just, like, put a pillow between us.

Kelsei: God, ok.

They find a movie neither of them are watching. Unable to focus due to the heat. Jake tries not to daydream about his sister’s tits, but his erection has filled out, and every slight movement just stiffens it. Jake can only see his sister’s head behind the big pillow, and leans back. Hoping she won’t lean over and see his erection.

Kelsei: I am glued to this couch. Fused. Can you refill my water?

Jake: Why can’t you do it?

Kelsei: I told you, I’m glued to the couch.

Jake: Ok.

Jake continues to sit on the couch.

Kelsei: Aren’t you gonna get up?

Jake: I am up. I’m refilling it right now. Here you go.

Kelsei sees Jake looking far past the TV, clearly lost in his own world. She leans over to check on him and is dismayed by the roll of cookie dough sticking up in his shorts.

Kelsei: Fine, I’ll get it.

The couch unsticks like velcro from her back. She takes both glasses to get refilled, and stops to fan her booty shorts away from her.

Kelsei: Fuck, it’s hot! Lemmie go change.

Kelsei comes back in with a black, six inch skirt and no top or panties. As she walks in she takes a good look at her brother’s cock.

Kelsei: (We’re siblings!)

She sits closer to the pillow, enough to take glances at his cock. Her hands are in her lap a moment later.

Kelsei: Oh my god, I just put on a mini skirt, I feel so much better. You should try it!

Jake: Why would I…

Kelsei: It’s just us at home. I mean, it’s practical. Men like to do what’s practical, right?

Jake: Nah, you’re gonna take pictures and blackmail me.

Kelsei: Wow, that’s low. I’m actually trying to be nice.

Jake: Wait, let me try something.

Jake turns to hide his erection and stands up. Kelsei is able to get a glance anyway. He walks back in, having worked it down, wearing a towel around his waist.

Jake: Not bad.

Kelsei: That’s some heavy cotton, maybe something a little less?

Jake: It’s fine.

Jake sits back down and never notices the pillow is missing. In his dazed state, his glances at his sister’s tits become longer and more emboldened. Kelsei rolls her eyes, before glancing at his crotch again. Then she fans her skirt, showing off her pussy for a moment. His eyes dart to it.

Kelsei: Sorry, it’s just so hot!

Jake: No panties? Seriously?

His erection stirs again. She gets on all fours to vent her back, and flaps her skirt. Her head sinks into the back of the couch with her ass in the air, continuing to fan herself.

Jake: Do you have to do that right here?

Kelsei: Oh my god, why do you care? I’m your sister.

Jake stares at the side of Kelsei’s ass, desperately praying it points towards him. Instead she widens her stance.

Kelsei: Men are lucky, their organs get to cool off on the outside. I can’t really widen my pussy out to let air through.

Jake: (I could definitely help you out with that!)

Kelsei separates her pussy lips with two fingers and tries to get air inside.

Kelsei: Can you get the fan and point it at me.

Jake thinks about arguing, but stands up just to see his sister’s pussy. His erection lifts his towel. He turns on the fan and points it at her, taking his time to aim it. Her skirt flutters and she points her pussy directly at the fan.

Jake: Let me get me too.

The air hits his crotch and Kelsei is hit with his musky odor. Jake hopes the coolness will shrink his erection, but it stiffens from the vibrations. He tries to walk backwards and bumps into the coffee table.

Kelsei: I know you’re hard. You don’t have to hide it from me.

Jake: Sorry, it just happens.

Kelsei: It makes sense, you increase the surface area to help cool down.

Jake: Huh, I guess.

Kelsei: Wish I could do that. I want the fan pointed directly at my cervix.

Jake: Jesus Christ.

Kelsei: Sorry, but it’s really bothering me.

Jake’s erection sticks through his towel. Debating whether he should sit down next to her or on top of her.

Kelsei: Is that there to help?

Jake: No.

Kelsei: It’s not like it’s actual sex, you’re just widening my pussy with your dick.

Precum drips from Jake’s cock.

Jake: Are you serious?

Jake stares at Kelsei’s dripping wet, hot, bald pussy.

Kelsei: Just don’t cum inside me, ok?

Jake: (Oh shit, she’s ovulating!) Can’t you use some toy, or something?

Kelsei: I don’t want to put some random object in there.