You're not sure how to react

After hesitating, Jimmy gives you a push from behind and urges you on to leave the room with him. Tough... but you don't have much of a choice. The two of you move downstairs, and your mother beams happily to see her son - as well as a girl she didn't recognize. Your brother was the one to speak up first. "Welcome back home, had a nice trip? Oh you hadn't met her yet, this is my girlfriend, Sarah!"

You smile awkwardly and raise your hand for a friendly wave. "Y-yeah."

"Quite the cutie," your mom follows up while your dad left to move their bags upstairs. You begin feeling even more awkward. If only she knew that she was talking about her son in such a way...

"Yes she is, I got lucky with a good catch! And I got even more lucky since she's usually a nudist... only reason she's wearing anything is because you guys arrived!" What!! No! He's improvising!!

"Oh. Well that's fine. We're a sex positive household dear, so if that's what you're into, then get out of those uncomfortable clothes!" Again you hesitate. On one hand, the idea of getting naked in front of your parents was disturbing... but on the other hand, it wasn't really your body. It was just the body of a pretty hot girl, nothing more. "Y-yea...." You grumpily turn to your brother and give him a brief angry stare before pulling your shirt off, and then pushing your boxer shorts to the ground. Your mother got a good look at your flawless skin, perky tits, as well as your freshly used peach. The lips of your cunt were still a little red and excited from the previous encounter.

More importantly however, upon seeing your mom smile in amusement, you look down to see a trail of white goo beginning to leak out of your slit and down your thighs. You gasp and close your legs tightly in embarrassment. "What the hell!" you stare back at your brother, seeking an answer, but your mother interrupts. "It's fine, don't be shy!" She comes up to you and gives you a friendly bump on the shoulder. "I totally know that it's the best part of sex when the guy finishes inside you!" No No, this was getting way out of hand. "Are you kids using some kinda birth control at least?"

Of course not, that's why you didn't want that bastard to get any cum inside of you! Before you have a chance to speak up, your brother uses the opportunity. "Nope! Nothing at all. It wasn't my idea, but it's important to Sarah, a part of her nudist thing. She wants it to be all natural. No pill to mess with her hormones. No condom to separate our genitals. She likes the intimacy of doing it bareback."

That sneaky son of a... you barely manage to nod in response. It didn't matter that your mom was so open about it all, this was extremely awkward. She reaches into her handbag for a moment and opens a little box, leaving both you and your brother confused for a moment. She retrieves a small pill from the box and hands it to you. Of course you assume that it's some kind of birth control or morning after pill, so you chug it down in an instant! "Thanks, I guess."

"Don't worry about it, cutie. Now you won't have to worry about a leaky pussy anymore!" "Huh?"
What was she talking about? "The pill, of course! It will cancel out the natural acidity of your vagina. So instead of having the cum turn watery after a few minutes, it will remain one sticky batch of love goo! No more awkward running to the bathroom after sex, sperm will stick to the inner lining of your vag like glue," she laughs heartily, while you're mortified at the prospect of being a literal cum dumpster for your brother. He sure had taken advantage of the situation and manipulated it perfectly into his favor. "You may still want to make a trip to the bathroom every now and then to get the baby gravy out of you, especially during your fertile times. Or don't, I'd love to have a grandchild!" She laughs again, and you realize that this was even worse than you assumed. A curse to make you super fertile and medicine to turn your vagina into some kind of sperm magnet? Not cool.

"Looks like at least one of you is enjoying the thought of making a baby." Upon hearing that remark, you look down to see your vag was anything but looking excited. By now, you could even feel how turned off and dry your pussy had become. It was only when you looked back at Jimmy that you understood he was the one she talked about, he was pitching a tent in his pajama pants, a massive one at that. He didn't waste time in grabbing your hand and starting to drag you towards the stairs, but your mother stopped the two of you - thank god! You managed to avoid having to satisfy his needs again.

"Sheesh, relax, kids! It's nothing I haven't seen before. No need to get up to your room for it. Come on," she suggests as she instead walks with you two over to the nearby living room and settled on the couch. "There, come." She pats the spot on the couch right by her side, and Jimmy sits down immediately before pulling you down onto his lap and tugging the waistband of his pants down to free his dick. Was he really going to do this, right here in the open? Since you're already facing him, you shoot him another angry glare for getting you into this spot. By now it was too late to pretend you were just a classmate, considering you were quite literally naked on top of him while his erection was happily pointing up at your unprotected vag. However, it was your mother's hands that you suddenly felt on your wide, child-bearing hips and giving you a firm push downwards. With a gasp, you suddenly feel his chubby rod of flesh entering your pussy and stretching you anew. Your own mother was unintentionally helping to erase the existence of one of her sons...

Mom grabbed the TV remote and began switching through the channels for just a few seconds before directing her attention back at you again. "Well, what are you waiting for? Don't leave my son hanging like that. Giddy up!" She playfully smacks your sensitive bum cheeks with the flat side of her hand, and you get the idea. Against your better judgement, you begin riding your brother's veiny dick and treat him to the warm, slippery comforts of your cunt. Unlike before, he was now managing to bottom out inside of you. Each time you lowered your hips, your plump pussy lips kissed the hairy texture of his ball sack before you moved back up. Like this, it was awfully noticeable that you no longer had any barrier between his masculine manhood and your helpless little vag. Jimmy was in pure bliss and enjoying the moment, while you were too stunned to say anything.

Without warning, you suddenly felt his erection throbbing intensely and pulsing strongly against the tight comforts of your pussy, your mom squeed in delight, while you're left to sit on his lap in brief confusion before you realize that he must be climaxing! Looking back, you notice your mother was staring right at the rhythmically contracting testicles of your brother. She looked so proud of him for inseminating a teen girl, it was hard to believe. Before long, you grew vaguely aware of a new warmth somewhere in your crotch. Your little bro must be dumping a big load inside of you...

When it finally came to a stop, Jimmy leaned back with a content smile while your mother shifted her attention back to the TV, both of them having lost all interest in you just like that. Was anyone even going to mention that he barely even lasted a couple thrusts before blowing his load? Where's his pride? Even for a virgin he didn't last long. You carefully climb off of him and take a seat between the two. Curiosity gets the better of you and you lower a hand down to your tender vagina and slip a finger in... gross! It was like she said, all that cum had formed one puddle of thick goo inside you and the consistency was disgusting. Comparing it to glue wasn't far off. To your horror, you notice that you unintentionally managed to push the slimey mass even deeper in. A slap across your wrist gets you to quickly pull your finger back out, wha...? You look back at the annoyed expression of your mother. "You two are in a relationship, don't finger yourself. The whole point of your pussy is that you both can enjoy it. Unless you want to disappoint my son?" You are quick to shake your head in response. It's way too easy to offend people as a girl, this was really tiring!

"Good! Well then get to it, give him a handjob and you will see he's ready again in no time. I noticed that with my older son and his girlfriends. You'd be surprised at the stamina that boys of that age can have!" Nuh-uh, no surprise there, like she just said you kind of went through that phase yourself a few years ago. When you hesitate to follow her instructions, she reaches back into her handbag... and withdraws a different container than before, with new pills inside. Though as she retrieves one and puts it on your palm, you're **** to take it right away considering what the last one did. But asking her about it? May get her even more annoyed. Where did she get all those unusual pills from anyway? Gwen must've used her connections for the sake of your parents, to create the stuff in a chem lab during her studies. Between asking your mother what it does, or just taking it, or at least pretending to take it... there's no good alternative you can think of.