Yeah... right...

As Beth squeals with glee and slips from your grasp to enter the mother of all showers, you take a moment to truly take in your half sister’s body. Last night was frantic touching and sweat and skin and saliva. This morning was more of a mad dash to get out of Mom’s place. But now you can really look at her.

Her heart shaped face sits atop a short but graceful neck. Broad shoulders for a woman, but the must be necessary to hold up those tits. D-cup if you’re any sort of judge. Not only are her nipples pierced but so is her belly button, something which surprises you, but on reflection it makes sense that you wouldn’t know about it. Her day job as a substitute teacher for Duluth Public Schools leads to her wearing conservative clothing, and since Minnesota only has two seasons, Winter and July (not technically true, there are two more. Pothole follows Winter, and Construction follows July), there’s not much call for bare midriffs. She has a certain softness to her tummy that comes with age, but her waist is still noticeable with her amazing hips and ass. That’s totally acceptable in your book. You’ve never been fond of the Banana Repugnant stick figures that dominate the American ideal of beauty. You could stare at that ass for hours.

Strong legs show soft curves over muscle, and another thing you didn’t notice last night. There’s a small tattoo on her left calf that you can barely make out. A picture of a fairy that appears to be fairly intricate. This definitely calls for a more thorough inspection later. And although feet aren’t really your thing, you’d be remiss to neglect the fact that her tiny ones are just as adorable as her hands.

Showering with Beth is slippery fun, especially in your massive super shower. There’s a short attempt to keep things controlled and civilized that abruptly ends when you wash Beth’s hair. It’s a fetish that you’ve always had, as strange as it might seem to others. There’s just something intimate about it, that sets off the pleasure centers in your brain. Beth’s hair takes on an almost gold tint when it’s wet, and the smile on her full lips is near beatific at this simple pleasure. She lets out a low moan.

That’s all it takes to bring your already semi turgid erection to full mast.

She feels you poking her shapely bottom and giggles. “Is that for me?” She asks coyly, grinding back against you.

Your only answer is a growl as you pull back on her hair so she’s looking up at you. The kiss that follows is a thinly veiled struggle for dominance as your tongues wrestle for supremacy, a short lived struggle as Beth surrenders unconditionally after only a few moments, melting into you with a contented sigh. One hand still gripping her hair, your other snakes around her body to slide between her legs; legs that part immediately for you, giving you access to her most tender of places. No fooling around this time. You plunge first one finger then a second into the velvet softness of her cunt, your thumb casually flicking at her clit.

She bucks back against you as the wave of her first orgasm crashes over her, and she moans into your mouth before her legs give out, leaving her supported only by your hand up her cunt like a sexual Muppet. You pull her to you and bend her forward over the built in bench, then enter her. Her tender cooze is still spasming from her previous climax as you begin rutting into her like a bull elephant in must.

With each thrust she once again picks up her litany from the previous night, “Yours, always yours! Your slut, your whore, your fuckdoll! Yes, take me like a bitch. Make me your bitch!”

For your part, you become lost in it and begin responding, “Mine.” to each utterance, which only spurs her to greater extremes.

“Use me! Fuck me! Mark me! I live for your cock! My big brother, my lover, my owner!”

Something about that last bit just pushes you over the edge, and you cum with a roar, shooting your seed deep inside her, feeling her cunt pulse in time with your own spasms as she cums along with you.

Spent, you pull out and she slides bonelessly to the floor of the shower. A few moments or a million years of gazing at the prone body of your sister later, she finally finds the strength to move again. She grips your leg and pulls herself to her knees. Kneeling before you, she rubs her face against your now wilting cock and gazed up at you with what you can only assume is adoration.

“Thank you... Sir.” She says the words like a prayer, just before taking you in her mouth and beginning to clean you.

Achievement Unlocked : Thank You Sir, May I Have Another