Check out your options

The door you picked didn't exactly line out your options. Though, considering what the Entity said, did that even matter? If you screwed up, nothing bad was going to happen to you. You could climb over your sibling's legs, **** your way out the door and walk up to another random car with no pants on if you really wanted to. Just reach into the open window of a random car, grab the female driver by the hair and drag her screaming onto your erection. Nothing bad would happen to you. You would be doing that at some point, you realise. To every female driver and passenger here, at some point in time, if you hadn't already.

For now though, it's time to vent some perverted incestuous fantasies. You look around and check out your options, like a hungry diner choosing which slab of meat to devour.

Your little step-sis Rosalyn is looking decidedly smaller and cuter than you recall. Subtle variations in quantum mechanics has cursed her with a tiny, flat, youthful body that would see her frustratingly reaching for her ID at bars well into her twenties in this timeline. She's dressed - if one could use that word - in a thin white crop top, half transparent with her sweat. You can easily make out the black bikini top underneath. White top over black underwear? God, the little slut. Not that she had much in the way of tits in this timeline. Perfect little mounds caused the skin-clad cotton to swell enticingly on her upper torso, leaving her skinny midriff and cute belly button fully exposed and glistening in the bright summer sun. Her smooth, skinny legs were almost completely in full display, adorned only in a tiny floral miniskirt. Her soft, dainty feet were completely bare.

On your right, your sis Marie is the polar opposite. Different genes, but in all the right ways. She always did have a decent pair of knockers, but this timeline seems to have jacked her oestrogen levels all the way up to 11. You would dearly love to describe the girl in detail, but staring at that, the primitive lizard part of your brain assumes direct control, and uhhh.... BIG FUCKING TITS. BREASTS. GIANT FUCKING HONKABADONKADONKS. BIG GIANT MILKY MOMMY AIRBAGS.

Ahem. Your sister Marie would appear to be well endowed.

Rosalyn is being a little bitch as per usual, complaining about the heat as though you're not all stuck in the same situation, but you're more distracted by Marie's thicc as fuck thighs pushed tight up against you. It's not exactly unusual to be in skin-contact with Marie - plently of evenings in the past have been spent sprawled over each other playing on the Switch or your PS4.

However, context is everything, and the implication here is decidedly 'you can put your erect penis inside the mouth of any female present'. It's weirdly hot given that she's your sister. Whilst Rosalyn has always featured in your sick free use fantasies, Marie has been more of a solid friend to lean on during your childhood - but still...

That thought process was rapidly handing over control to your cock as she peeled off another layer of clothing. Already down to a black shirt and hotpants that were causing her thighs to bulge in all the right ways, she reaches up seductively and pulls of her top. Her enormous mammaries get caught under the shirt and rise, and rise until finally slapping down with a loud *smack* against her bare midriff. A deep valley of cleavage as far as the eye could see.

It would seem you guys have been stuck in this jam for quite some time, and have passed the 'I'm bored' phase and entered well into the 'let's strip half naked' phase. God bless this timeline.

Before you can decide which of your family members to ****, your sisters discover you still have a bottle of water on you. Marie immediately clings to you, smushing her considerable curves hard against your bare flesh. Making a pouty face that... oh god her lips... that make her thick DSLs look even bigger and juicier... she notices your bulging erection and rather than screaming or slapping you, she instead gives you a smug look, pushes her breasts together pouting innocently, and asks in a sickly-sweet submissive voice that redirects half the blood in your body to your cock.

"Can I have the rest of your juice, pretty please?" She begs.

"Ew, what the fuck, you disgusting pervert!" Rosalyn yells. "Mooooooom, Marie is being gross and John has my water, make him give it to me!"

"Rose, I love you darling, but please, give me a break," Clara says, voice strained. "John, give Rose whatever you have, please. And no arguing. I give you enough as it is, the least you could do is help out your sister."

Of course she'd take Rosalyn's side; she'd never snap at her perfect darling, not even in this idealised timeline. Sex-toy sisters? Sure, why not? Overly sexualised bodies? Not a problem! An unbiased step-mom? Impossible, get the fuck out of here. You make a mental note to pick a door that lets you violently **** Clara's throat next before realising with frustration that you wont remember any of this anyway. Perhaps you've already ploughed her throat and deposited billions of gallons of semen into her stomach already. If you haven't, you definitely will. Fucking biased hag. The thought brings you some satisfaction, but before you can enjoy it...

"John! Water. Now. Give." Your petite little sister demands, holding out her hand. “You heard her, now give it, you creep.”

She leans toward you, her cute, smug little face inches from your own. Your breath hitches and fists clench in sexual frustration. You can’t decide whether you’d rather slap her or kiss her.

“Or I swear to god I’ll get you in so much trouble you wont be allowed to play with those nerdy science toys for a month,” she whispers and smirks. “You know mom’ll take my side”.

The whole time Rose has been teasing you, your other sibling’s hand has been creeping up your leg and is now dangerously close to the tent you’re doing a not-so-great job at attempting to hide.

“Don’t worry David”, Marie says. “If the little brat tries to pull anything, you know I’ve got your back. You know that, right - Big Brother?”

Her words would be just about the cringiest thing imaginable if you weren’t overwhelmingly distracted by her fingers lightly brushing up the length of your erection. You turn to look at her and she tucks her hand back between the wide expanse of pale skin that is her thicc thigh and your own, now looking innocently at you with puppy dog eyes and a pout that emphasizes her already ludicrously thick DSL’s even further.

“What’s the matter, David?” she asks in an innocent sing-song voice. “You look a little thirsty right now.” She runs her tongue around her lips and bites the lower one seductively. “I’m pretty thirsty too, how about we share what you’ve got?”