Try to be sneaky, your parents don't have to know what's up

With your first attempt to get up, you felt just how sore your entire groin was. Who would've thought that getting drilled all night long could have such a lasting effect? You instinctively reach a hand down to cup your womanhood and prevent any cum from spilling out as you put on a fresh pair of underwear and allow your shirt to fall back into place. Already then you could feel some warm goo leaking out of your still slightly gaping lady bits, so you leave and head for the bathroom while Frank is getting dressed again. Your parents were none the wiser.

In the bathroom, you tug your undies back down and allow an ample amount of white slime to ooze right down into the toilet. It even felt like your belly was lightly bloated with the sheer amount of spunk that you were carrying around, and once you managed to get most of it out you quickly flush and leave no trace. Done with that, you wipe your pussy with a towel before pulling your shorts back up to join everybody at the breakfast table, as if nothing had ever happened. Most of the time was spent listening to your dad and Frank talking about work anyway, so you could calmly eat your breakfast until the two of them left together with your mother.

The apartment was quiet again. It's not like it matters much, you head right back to your bedroom, change the bed sheets and then continue playing Skytrim, an open world game about trimming the sky while avoiding dragons.

You don't hear anything from Frank for a week. As expected, your mom was the first one to warn you again that your father's poker day was approaching. Guys outside. Yadda yadda yadda. For as long as you're at the computer, you're in a safe zone where nobody could annoy you.

It's eventually approaching midnight, and you're still at your computer while almost everybody was asleep. You were almost afraid that your parents had kicked literally everybody out, until Frank opened your door and snuck inside. Such a relief. "Did mom and dad notice you?" you ask nervously, but he shakes his head while already stripping out of his clothes. Okay, cool, looks like you two won't be wasting any time tonight!

"Your father was drinking plenty, pretty sure he's gonna sleep like a baby tonight. As far as your mother is concerned, I am sleeping on the couch again. Let's make the most of it," Frank pointed out with a smirk before approaching you and sliding your shorts off your legs to reveal the cute triangle between your legs. "Just like how I remember it. Did you like the creamy gift I left inside you last time?" he asks with a grin, and you blush in response.

"Your stuff was leaking out of there for, like, two days or something. I thought it would never stop," you add which again makes him laugh. Like a gentleman, he carries you over to your bed and lays you down on your back before climbing on top. Your pussy had mostly recovered from last weeks pounding, but never quite returned to its initial state. It used to be a perfect, subtle peach. As you look down however, you could see your inner labia still protruding a little, and the pale folds weren't as tightly mashed together anymore either. Frank noticed it too but was a whole lot more amused about it. "It's fine. Small price to pay for getting laid, right?"

Considering there was nothing you could do about it anymore anyway, you shrugged and spread your legs wide open to make it easier for him to find his mark. "Ahnn..." you gasped cutely as he pushed in, and you could feel the slick lips of your pussy once again peeling back his foreskin and allowing the more sensitive, bloated cockhead to enjoy your body. The two of you were slowly making love like that for nearly an hour, with nothing audible aside from the occasional squelch of your drenched cunt while he was thoroughly tenderizing your lady bits. Both of you were getting sweaty, exhausted, but also increasingly horny and eager for release after having spent a week apart.

He gradually picks up the pace, plowing into you and making your bed creak awfully - fortunately your parents really did seem to be very deeply asleep. Your womanhood was beginning to ache because of how sore you were getting, and Frank was also beginning to groan in a mixture of pleasure and pain from exerting so much energy. When he finally came, he shoved his hips forward and buried every last inch of his dick inside your cream canal. That was enough to trigger your own climax as well, and you could feel your pussy warmly contracting around his cock while your entire body went numb, allowing you to completely enjoy the electrifying shocks of pure bliss with every soothing wave.

Completely satisfied and with nothing left to give, both of you fall asleep like that.

...

... ...

"Hun'?" you are vaguely aware of your mom's voice right outside your door. The sun was already coming up. "Breakfast is going to be ready soo- Oh!" she interrupted herself after opening the door. Right there in front of her she could see her precious daughter on the bed, on her back. On top of her daughter she could see Frank, naked and hairy, and just between the two bodies she could easily make out the spot where the fat, veiny girth of his penis was disappearing into her daughter's swollen vag.

"M-mom! It's not what it looks like," you mumble immediately while trying to wriggle free underneath Frank's heavy weight. All it did was allowing some of his thick, white semen to dribble out of your slit, which your mother could immediately spot.

"Oh. I... huh. I didn't know you two were dating," your mom added very surprised, but not concerned or upset. By now, even your lover was beginning to wake up after hearing some of what was spoken. "Mmmh... yeah what can I say. She seduced me with her sexy body," he interrupted and leaned down to give your cheek a kiss. "Don't blame her though, teenagers are full of hormones. For all that energy she simply needed an outlet. So I took care of her inlet," he added with a laugh before giving you another wet thrust, much to your embarrassment.

"Well that's good! You two have my blessings, just stay safe! Breakfast in five as usual!" And with that, she closed the door again. Awkward!

Back at the breakfast table, the topic came up yet again, and it was your father who showed some concern. "What's most important to me, of course, is that you're happy and safe. You've still got your whole future ahead of you. But I do have to admit you two have quite an... age difference?"

While you were thinking of how to explain yourself, Frank chimed in again. "Ah come on, you know how it is with kids these days. Age is just a number and all that. I can't blame her for needing some release every now and then," and you could feel a scarlet blush creeping on your cheeks. But he still wasn't done. "She's kind of a sexual deviant anyway and I'm surprised she didn't do anything stupid in the past. Hell, I am pretty sure that most of my sperm is currently in her belly instead of in my balls," he chuckled while giving you a pat on the shoulder. Your gaze went right back down to your breakfast plate, and you silently tried to continue eating while avoiding eye contact. "Really? She always used to be so scared of getting pregnant," your mom asked clearly surprised.

Frank shrugged. "Yeah I have had a vasectomy. I've been creaming her little flower every time. She's taking that baby gravy like a champ, doesn't even spill a drop," he explains casually while reaching for the butter to prepare his sandwich. Ugggh, this was humiliating. Having your parents get angry may have been the more appealing alternative. You had no idea your parents were so positive towards sex.

Your mother however nods along. "I see, that's a shame. I always wanted grandchildren. Well at least you two are having fun!"

A couple minutes later, Frank was grabbing his shirt from your room while you excused yourself to the bathroom for a moment to take care of 'something'. While crouched over the toilet and letting his most recent deposits out of your body, you also noticed that your inner labia were protruding slightly more yet again. Those long sessions were really taking a toll on what used to be such a cute, virgin slit. Even when you stood back up, your pussy lips didn't quite manage to touch. It looked more like an adult woman's cleft now instead of an innocent peach.

When you returned to your bedroom, you spotted Frank standing by your wardrobe and looking at the calendar that was attached to it. "What's the cross for? And what are the circles?" he asked out of curiosity.

"The circles are so that I know when to expect my period, but my fertile time is coming up first anyway, that's marked with those smaller circles. Not like we need to worry about that one," you remark with a glance towards his crotch and the bulge of his snipped testicles. The cross is marking my birthday next week."

"Oh, so your birthday is around the same time that you're fertile?" - "Uhmm," you take a closer look at the dates. "Yeah I guess." Frank continued looking at the calendar a little longer before turning back around to give you your first proper, adult kiss - his tongue wetly sliding into your mouth while you try to imitate what he's doing to the best of your abilities, which given your inexperience, wasn't much. He grins after breaking the kiss, "... we'll have to practice that one. Anyway I'm off to work,"

"Be safe," you reply as he joins your parents and they leave the apartment.

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