Bunker step-brother emergency lockdown

you are my step-sister. Our parents were doomsday preppers, but mysteriously died not long ago. They sent us a message to go to their house in the woods because the end of world was coming. We dutifully go and it’s just us in the cabin when we get the emergency warning over the tv or phones or whatever that the end of the world is happening. We are shocked and can’t believe it. Thankfully for us, we can survive for a long time. Our parents prepped well and stalked the house with decades worth of rations and medical supplies. We have a working generator and thousands of gallons of fuel. After the initial shock, we settle in to our new existence. The news tells us we can’t leave our house anytime soon as it’s not safe. The next few series of scenes is just a montage of us existing together in the tight space of the small house. However, by the end of the montage intrusive taboo thoughts start creeping in for us both. If you can add some inner monologue over the video for some scenes to set the mood that would be awesome. Eventually, I accidentally go into your bedroom when you are changing (or bathroom when you are showering or peeing) I catch you in a very vulnerable state and can’t help but stare. You are shocked and embarrassed and frustrated that I won’t leave quick. After a bit, I hurry out of the room. A slight transition and you walk by my room and hear fast wet sounds from inside. The door is cracked and you peak in. You me jerking off with some of your panties wrapped around my cock. You are shocked, but wtf, also turned on?! You start to play with your nipples and clit while watching me stroke. Then I cum and soak your panties. You are so turned on now. You have to do something about this. The next morning at breakfast we are eating our cereal, and I apologize for walking in on you and seeing you. You are understanding, but then you have more questions. In particular “wtf are these?” And you pull your cum caked panties out and confront me. I’m embarrassed and you keep berating me for being a filthy pervert. But your anger seems almost faked and your dialogue is somewhat arousing. Are you coming on to me? The intrusive thoughts are coming on strong. Before I know it you are over me, close, scolding me, but I can feel your breath. The tension breaks and we start making out. In the heat of the moment I start kissing down your body and eventually start kissing your pussy through whatever you are wearing. I ask to taste you and you eagerly accept peeling off your clothes. We then move to the couch or wherever and I eat and play with your pussy and asshole until you cum. I lap up your wetness and then you peel my head up and whip my cock out. You suck until I blow a large load on your face and in your mouth. We then make out swapping our justices. A slight transition. The dialogue lets it be known that we have been intimate a lot and that today you are ovulating. We need to do our part and repopulate the planet! You wake me up and you are in sexy lingerie. You let me know your plan and we will spend as much time as necessary to get pregnant. The next scene devolves into a fuck and suck fest which I cum like cartoonish amounts of times including at least one deep breeding cream pie. If it’s possible to not clean in between cumshots that would be amazing. I have a big cumplay kink! After we are thoroughly spent, we collapse together on the bed thinking about what we’ve done and how our taboo relationship has evolved. As we are cuddling in our sticky mess. Something weird happens. The lights get brighter. Someone yells that’s a wrap! Wait are there tv crews filming us? You are trying to cover up your nakedness when the director comes in and lets us know we have just been in social experiment to see what would happen to siblings in doomsday conditions. Essentially it’s a Truman show type set up for us both. The movie ends with the utter shock and horror of what has transpired scrawled across our faces.