Visit your parents until the fertility wear off

When you arrive at your parents' apartment, it's no big surprise that nobody was home - they were still at work for another hour or so. It felt good to be back in a familiar environment, safe and secure. Now the only problem you still had to deal with was your arousal. You're so turned you could practically feel your juices leaking down your thigh and making a mess in your panties, that fertility medicine was potent and incredible at making you want to hump anything that moves.

You didn't even need to check your bedroom for any toys you could enjoy, you never dared to purchase any. That was back when you were still a virgin though and didn't know how good it felt to have your pussy stretched by a nice dick. After some contemplation, you decide to sneak into the bedroom of your parents and see if there's anything you could borrow from your mother. She's... really kinky based on what you had heard from her, so there's a good chance she had something useful.

It didn't even take a long search, right there inside a drawer next to their bed was something phallus shaped! It.. wasn't a normal cock though. As you get a closer look, you could see that it was a pretty lifelike replica of a dog's penis. Gross! It was mostly red and white, even with a ton of thin veins designed all along the smooth surface. Tapered tip, massive knot... damn, mom, you're a pervert! Near the base was a small extension, perhaps an inch long, to get a better grip on it you assume. Ah well, better than nothing.

After grabbing it, you make a quick trip to the bathroom to make sure that it's washed clean and then bring it right back to your own bedroom where you eagerly push your underwear and pants down to your thighs and spread your legs open. At first you try holding the dildo by the knot, but it was... flexible and a little squishy, as if it's made from some weaker material and hollow inside, so to avoid breaking it you move your slender fingers down to the short shaft beneath the knot to hold and guide it. To start with you just tease your fleshy, wet opening with the thin tip of the toy, rubbing it up and down until you can no longer resist the temptation.

You don't even need to apply much pressure, because of the tapered tip you could easily slide the first inch into your pleasure box before you felt yourself stretching open to accommodate the next few inches. It felt so good to have something back inside your body, your cunt was thirsty for a good fuck. But, this is the best you could do without risking to get pregnant. You were hyper fertile, even a drop of sperm could get you preggers yet again, and then you would be stuck as girl for good. You seriously needed to get your cravings satisfied to avoid doing something stupid and reckless.

With another push, you manage to take most of the dildo, and it's an amazing sensation! You can't help but to moan and squirm on your bed a little as you start moving it around, teasing your slick insides with the lifeless toy. In and out you go, at a steady rhythm, gradually working yourself towards the climax that you needed so badly. It was only a shame that you couldn't get more of it into yourself... or could you? Each time you thrust it back in, the bulbous knot bumped against your damp pussy lips.

You continue on for a few more minutes until your cunt was drenched with a dire need to get stretched. After giving it another quick thought, you begin applying more pressure against your tight folds, attempting to **** them open while you gasped for more air. Your red pussy lips get strained paper thin, until the knot suddenly pops into you and opens you up completely. The tapered tip of the toy was suddenly **** right up against your cervix and you could feel it poking against that sensitive muscle like a needle, ouch! "Nnnhgh, crap!" you swear as you reach down and try to pull the dildo back out, but it only hurts even more! You tug, hard, but the knot didn't want to get out! Shit! You begin to panic and your initial daze of lust was fading rapidly. You grab a little mirror and hold it between your legs to try and see if there's a little button or lever you could touch on the bottom piece to deflate the knot. All you can see however is... a tiny hole at the very bottom, barely enough for the nose of a syringe to fit into. There's a little writing, too. "Insert fluid here."?

What kind of dildo is... oh no. Piece by piece your mind puts together everything you had seen so far and you figure out it's gotta be one of those squirting penis replicas. But where could the liquid be stor-ohh. Shit!! You realize that the squishy knot wasn't just hollow, but filled with something. Judging by random comments from your mother every now and then, she was very fond of your dad's cum, so if you're not wrong, then... "Shit, shit," you continue swearing while feeling your arousal dropping right back down to zero. If you squeeze the knot too hard for any reason, you'd likely end up with a fresh serving of daddy's sperm delivered right up against your cervix!

As you reach down and try to gently part the swollen lips of your vag a little further and get the toy out of your **** slit, it simply hurts, awfully, and doesn't allow the bloated ball to move outwards even an inch.

click

The door to the apartment opens, and you can hear your parents returning in the midst of a conversation. In a daze of adrenaline, you reluctantly reach down and pull your underwear and pants back up and over the short end of the dildo that still stuck out of you. The last thing you needed was for your mother to know that you were one mistake away from getting your dad's swimmers injected into your womb. Glancing down, your pubic mound was bulging out significantly because of the persistent stretching. With slightly parted legs, you get up and leave your room to greet your parents with an awkward smile and a really nervous voice. "Heyyy mom and dad!"

"Oh! Hey!" your mother responds happily, glad to have her precious daughter paying a surprise visit. "I didn't know you were coming!" she adds, and you stifle an uncomfortable chuckle. "Yeahh... surprise! I figured I could, uh, visit. Maybe even stay for a couple days if it's okay for you two?" Your mother simply pulls you in for a tight hug, and you grow even more aware of the massive knot you were holding in. Your father is joyful at the news. "You didn't need to ask, of course you can stay," he points out and you feel a little better.

Good thing he doesn't know that you're carrying a part of him inside of you. It took all of your willpower to suppress the instinct of squeezing down on the knot with your sensitive lady bits. The fertility medication was making it so very tempting for your struggling mind, pestering you with the urge to get knocked up again. It would only take a single moment of tensing up and your little pussy down there would have to helplessly swallow your father's spunk.