Return to the bedroom, play some games

You briefly consider what to wear -- your old boxer shorts or some girly clothes -- but quickly remember that your brother announced how you are a "nudist." There goes any hope of preserving some self-esteem and dignity. You will easily manage to get by without getting knocked up, but in the meantime it will be degrading as fuck to constantly have both your brother AND your dad staring at your perky tits and the neatly shaven twat you've got down there. Nudist my ass.

It's funny to think that guys constantly compare dick sizes when apparently the clear winner is to have simply nothing down there. Just a hole.

Regardless, you finally step out of the shower and dry yourself off with a soft, cherry-scented towel. The fuzzy fabric caresses your hairless skin nicely! It's comforting to get caressed so gently and reassuringly. Instead of discarding it, you wrap the towel around your midsection and allow it to drape down and cover your front. It's not a skirt, but at least your cunt isn't fully exposed like this. Can't be helped that your breasts are still jiggling around freely with every step, but ah well. Plenty of girls don't use a bra at home, anyway. Though most normal girls probably also didn't reveal their entire naked body to their father.

Especially while fertile and ovulating.

Not like you did that intentionally.

You're also still aware of the fact that you used to be a guy, and that you can't afford getting pregnant, so maybe your mother's medicine wasn't working properly after all? Who knows. Either way, you step back out of the bathroom to confront your brother, who is... missing? You step into his bedroom and peer around but there's no trace left of him -- not like that's a bad thing. The less time you have to spend with him, the better. Since you sure as hell don't want to risk running into him by accident, you stay in his room and boot up the computer to play a few video games!

As you do, the medicine has plenty of time to be fully absorbed into your bloodstream. It's a slow and gradual effect and while concentrating on your games you don't even notice it. Sex is simply the act of getting penetrated, right? The chance of getting pregnant is a gradually fading thought. You used to see a man's ejaculation as this gross expulsion of a few million sperm, but even that thought is rapidly changing. It's just cum, right? Just some icky white stuff. It's kind of like spilling some greek yogurt, no big deal, just grab a tissue and wipe it off. If anything, dudes should just dump their load of semen as DEEP inside your cunt as possible so it doesn't immediately spill out. At least that way you'd keep everything nicely clean and tidy!

But why had it been such a big deal to you anyway? It's literally just a hole, so you might as well make it more freely available as long as it keeps the guys off your back. It makes sense! Even if sex isn't fun, you can still use it to your advantage by letting them plow you whenever they feel like it. Just let the boys use you for a quick pump-and-dump and everyone is happy. It's better than leaving your vagina useless and letting it collect dust.

WAIT A SECOND... what the fuck?

Seated on the computer chair, you push yourself away from the desk and get up immediately to storm out of the room! You're lucky enough to bump right into your brother in the hallway, and grab his wrist to frantically pull him into his bedroom. "Jimmy! We have to talk, now!" Your announcement is underlined by your distressed breathing and panic in your eyes. "The **** I swallowed, that shit is actually working! You have to keep an eye on me! Do not let me have sex with anyone! And even if I do have sex then make sure that I am ALWAYS using protection! I'll do whatever you want when I turn back into a guy, you can have my car, the gaming rig, whatever. Just keep an eye on me."

He looked at you in surprise, apparently just as confused as you are. "Well. Uhh. Yeah I was downstairs with mom and she told me a little more about the pill. She made this awkward comparison. You know how guys always think with their dicks? Well. She said that you're going to let your vagina do the thinking!"

"That's ridiculous!"

"I know, right? But it would be hilarious if it were true!" He chuckled heartily at his terrible attempt at joking and your face turns red in anger. "Listen here you little shit, having a pussy fucking sucks and I can't be arsed dealing with this for more than another day, let alone a lifetime of having a little meat pocket down there! Either you make sure that I don't fuck this up, or I will fuck you up and rain hellfire down on you. I'm still your older brother so get your shit together!"

It didn't have the desired effect. That's not much of a surprise considering you are a frail teen girl instead of a big brother. "Whatever, you shouldn't get your panties all twisted up just because you've got a pussy now. What are you, on your period or something?" His expression was smug and unpleasantly aware of the power he had over you.

"If only! I wish I were on my period, you dumb-nut!"

Just as you prepared to give him another smack across the back of his head, you spot your father passing by in the hallway! His arm was snugly wrapped around your mother's waist and you could see him pitching a massive tent. They were probably off to release some steam after the show you offered them earlier. You reluctantly lower your hand again, though your brother abuses the opportunity to wave him in! It gets even worse when he opens his mouth. "Dad! Sarah had a question she wanted to ask but she was too shy to check with you directly! I even told her it's no big deal really." Fuck! You freeze up now that you're again confronted with the risk of him making the situation even more awkward. Surely he can't think of anything worse than pretending you're a nudist? "I dunno why she's so shy even after you tried to be so open around her. Anyway! She wondered if you got a bigger dick than I do, weird huh."

Your eyes fill with even more shock. But you do keep trying to act your part as the 'silly naive girlfriend.'

"That's all? Sure, I suppose." Rather than telling you, you're regretfully **** to watch as your father slips his fingers underneath the waistband of his pants and tugs them right down to reveal his naked lower body. Along with a bouncing, fat slab of meat! What the fuck! His erection was at least TWICE the size of Jimmy's! Ugly thick veins ran along its surface from bottom to the very bloated crown of his appendage! That thing seriously wasn't a penis as much as it was literally a fuck-stick created to knock up careless girls! Each breath he took caused the thing to throb and sway lightly, it might even be his heartbeat that it's twitching to considering how much blood must be pumping through those veins!

Jimmy's hand grabbed onto your towel and abruptly tore it off your petite body while you were still lost in thought, and you barely restrain yourself from eliciting girly gasp! Everyones gaze drops right down to your vagina in it's chemically-induced ovulating state with those cutely red blushing cunt lips, the swollen labia and the clear cunt juices that were already running down your thighs. Your pussy was quite literally drooling at the sight of your daddy's manhood! It's not particularly reassuring that right now they didn't even realize that this was caused by the stupid meds from earlier!

Right now you are about as turned on as that one time when your ex-girlfriend offered to give you a hand-job with sandpaper. An advice she got from her Cosmo magazine.

Your mother chuckled gleefully upon seeing your lady parts so dutifully keeping themselves prepared for intercourse. Wet and slippery. Your father didn't seem to have any particular interest in your genitals, after all he was well aware of your lacking interest in having sex with anyone but your 'boyfriend'. He was just about to turn around and leave with a smile when your brother interrupted with another wild hand gesture. He quickly followed it up with another vile scheme of his. "I guess, I guess... we might as well do the other thing too? She would just keep on begging otherwise. " He briefly rummaged through the desk's drawers before withdrawing a... condom? Which he tossed into your father's direction, who snatches it out of the air. "She would love to know what it's like to have sex with an older man, if you're fine with that? You know... a little warm-up before you do things with mom? Just push it into Sarah once or twice and then you and mom can go do whatever..."

"Whoa. Hold on! I really don't think that's necessary," you're quick to point out. The cracking sound of aluminium foil draws your attention to the freshly opened condom wrapper, and you look over to see your dad engulfing his monstrous cock with the pink latex sleeve. His following tone was confident and determined. "It's all right to be curious, let's just get this done quickly." With confused eyes you glance back and forth between your sibling, and your approaching father.

His large hands take hold of your waist and he turns you around to face the computer chair before guiding you to the ground and bending you over the seat with your upper body. Your soft breasts squish against the fabric, while your knees already feel a bit sore upon rubbing against the cheap carpet.

"I really don't think this is necessary I'm just confused don't worry about it you really don't have to do this I don't think that would even fit," your continuous string of words did little to slow him down. His thumbs pressed against your drenched labia and he pulled your opening apart like a pair of wet curtains -- revealing the pink insides of your cunt! It glistened brightly. You were young and fertile without a doubt! The embarrassing scent of your womanhood fills the room moments before your father's dick stuffs the hole and forces your insides apart!

"Ahnn!! Nnnh!" Like a little girl who is receiving her first scolding, you wince pitifully and clench your toes while gritting your teeth! Your insides are STRETCHING open to try and accommodate the far too over-sized adult appendage! This isn't sweet and tender at all! This sucks! Being a girl sucks! Why would anyone willingly do this!?

Your tender pussy continues to try and remain flexible, wrapping around his manhood like a second condom with a perfectly airtight grip of cunt-flesh around cock meat! You struggle to imagine what penetration feels like for a girl who isn't leaking cunt juices like a faucet. Even your father noticed you were struggling. "There, there... just pretend this is one of your computer games? Right now your pussy is a level 1 item... but every thrust makes it level up, yeah? It's weak and useless right now but eventually it will have lots and lots of experience, okay?" Needless to say his explanation was incredibly awkward and weird to listen to. He finished every sentence by tightly grasping your feminine hips and literally pulling you back against his crotch HARD. His entire fucking dick shoved inwards and plowed into your twat without mercy! You can feel your inner muscles twitching wildly with their futile attempt to expel the invading object!

While you're gracelessly getting fucked like a cheap escort, your eyes glimpse something else in the corner of your vision. Your mother, sultry as she was, hugged Jimmy tightly... and had her hand readily rubbing against the front of his bulging pants!? But that's her son!! You could tell she was whispering something into his ear moments before they walked out of the bedroom... together?

...leaving you entirely at the mercy of your dad and his baby-maker. His crotch simply kept slapping against your perky butt each time he buried his manhood inside your snatch. The discomfort of being torn wide open by his cock faded only slowly... but in turn you also weren't rewarded with any pleasure. It was awkward as hell to be used for sex like an object. To him, this was clearly just a routine and your vagina was little more than a tool to help him ejaculate...