Hot Summer Job/Offer to eat out your sister
Your stomach knots as anxious words begin to queue up at the back of your throat. "I dunno. Those two look pretty busy, but if you want to do it that bad I guess I could give it a try."
"What?" Bree looks up at you, almost stunned.
"Mmmm. You must want this so bad don't you?" Carrie places her hand against Bree's back and begins slowly rubbing up to the base of her neck. "To have to ask, no, trick someone into going down on you like that."
Bree draws inward a bit, tugging at her shirt. "I never asked that..."
"Oh, hush. You're just so lucky to have a big brother like Riley. There aren't enough men who'll willingly go down on a girl, let alone their sister!"
You grin nervously, your stomach knotting tighter. "Well, I mean, I figured I should offer is all."
"Of course you should! So, Bree, how about you sit down right next to Larissa, hmm?"
Carrie pushes Bree forward, causing Bree to stumble over her own feet when she fails to start walking. The stumble alone brings her close enough to Larissa for her to stop. After glancing between you and her friend a few times your sister slowly lowers herself to the carpet, careful to keep her skirt down and covering her.
"You too Riley." Carrie squeezes your ass cheek then leans in closer. "You're a nasty boy, aren't you? Oooh, I bet you're a great fuck."
At least Carrie's reaction is encouraging, but you're still crazy nervous about your sister. Bree said this wasn't what she was asking for. You're not sure what that could be given the fact that she walked right into this. But she's also now sitting on the floor waiting for you, so you couldn't have been that far off.
Larissa lets out a squeaky moan as her body jerks forward, abs clenching. From there she falls onto her back, her elbows failing her. Having witnessed this reaction within arms reach, Bree preemptively lays down on her back as you step up.
Dropping to your knees, you survey the scene in front of you. Your sis has sat down roughly next to Larissa's head but after laying down is positioned further up the carpet than her peer. You'd much rather they be directly in line with each other, not only so that they can look one another in the eye as they get eaten out, but it just feels right to have them lined up in a proper row. So you shuffle about on the carpet to match yourself up with Kylie then grab your sister's ankles and give a short yank. Pulling your little sis across the carpet causes her shirt as well as her skirt to ride up her body; Lots in the back, but only a little in front. It's more than enough to bring her belly button into view and for you to get a peek at her daring pussy.
"Oh, 'that' is why you said no!" Carrie notes from over your shoulder. Bree pushes down the front of her skirt but that will hardly matter in a moment. "You're not even wearing panties! Looks like I was right about you after all. You are almost as naughty as your brother."
Bree must have been amused by that last sentence since she manages to smile for just a second. Carrie meanwhile has her hand on your ass again. She's roaming from cheek to cheek, groping and squeezing at will. Steeling yourself for possibly the weirdest thing you will ever do in your life, you part your tweenage sister's skinny legs to join in on the underage orgy that your babysitting employer has instigated. But you can't even bend forward before Carrie has reached under you to grab hold of your balls.
"Oh, don't mind me!" assures Carrie, fondling your coinpurse. "You just pay close attention to your sister."
Pretty hard to pay much attention to anything when someone has you by the balls. You feel some momentary relief when she lets go of you, then tense up again when she grabs hold of your shaft instead. She reams back on it, pulling it down between your legs and immediately begins pumping. A welcome shock, you widen your stance more than happy to give Carrie all the room she needs to work. Her pulling your erection back through your legs puts pressure on your pelvis, making you want to lean forward. Thankfully that's exactly where you're headed.
You slip your hands up along your sister's slim inner thighs and then, after bumping into her pelvis, flip the front of her skirt up and out of the way. Your little sister's pussy is a sight to behold. Her hairless and slightly puffy lips are just barely opened up with her legs spread apart, a sweet musk invading your senses as you dip your head lower. Her clit is hidden beneath her tiny hood, with her inner folds mostly still concealed by her vulva.
This sight is so weirdly alluring. Until recently you never would have thought you could view your sister as a sexual plaything, let alone any girl her age. Well, maybe a couple of her flirtier friends. It didn't take much for Kylie and Rissa to help loosen your morals. And here you are, nervous but excited to munch on your baby sister's cooch. She's such a crazy tight little package at 10. So much so that, for a moment, your mind takes it even further and wonders what it would be like to spread open the nubile naked 9 year old next to her.
You shift a little, finding it hard to get comfortable with your ass pointed up in the air, then can't help but shudder from Carrie's unexpected and spectacular hand job. Her long steady strokes are collecting and spreading precum up your shaft, right up into your balls. The entire length of your cock must have been primed with preejaculate because it's astounding how much she has pulled out of you in such a short time.
Doing your very best to ignore Carrie's skillful hand, you lean into Bree's pussy. You jutt your tongue out into her delicate slit, licking up into the soft folds. Her lips hug each side of your tongue as her semi-sweet excitement is found by your tastebuds. Your sister gasps as you flit forward between her labia a second time, and then a third, lapping at her entrance and drawing out her essence.
But you're forced to pull back, a grunt escaping from your throat. Carrie's handjob feels so amazing and you're just so fucking horny... you have no idea how long you can last here. In the midst of trying to slow your sharp breaths you catch Bree's eye for a moment. She looks truly shocked right now. She has plenty of reason to be, but you hope it's because of how good your tongue just felt and nothing else.
You descend onto your sister again, now seeking out her clit. Flicking hard at her protected nub brings a few more shocked gasps and finally a short moan after you focus your efforts on even steady flicking. But it seems Kylie is no stranger to eating pussy as Larissa is far outpacing your sister in the pleasure department. The younger girl has been droning out a whimpered moan off and on for a solid minute now, her big sister playing her like a flute.
"Mmmmm. Go on Kylie-bear, make your sissy cum."
That's so fucking hot. You slip lower and dig deep into your own sister's slit, your whole mouth pressing against her smooth mound. Your tongue stretches her open, her virgin entrance unaccustomed to the pressure of such an intrusion. Bree's fingers quickly find their way into your hair. You do what you can to stay composed but soon you're openly panting against her crotch. Carrie is pumping you faster and faster and you just can't hold out any longer.
Lapping haphazardly at Bree's slit, it's Larissa's back that suddenly arches. Your balls clench at the sight. Rissa begins to buck every few seconds, her body responding with the closest thing it can offer to an orgasm. She eventually squeals at the same time you begin to jerk and groan, the only two naked participants in this orgy climaxing in unison.
"Oh, yes. Good girl..."
You blow your load straight down, Carrie milking you for all you're worth. Kylie doesn't let up on her sister either, following her mother's orders to the letter.
After a few true explosions of orgasmic pleasure you peel your head back to look at Carrie. She's actually straddled between both you and Kylie, and it appears she has been feeling up her oldest daughter's petite backside while jerking you off. Kylie is still wearing her tights, but surely they're thin enough to offer little protection from Cher mom's wandering fingers.
Dropping your head with a sigh you look under you between your legs. Carrie is still pumping you, working the last drops of cum from your balls. But then you notice something placed directly between your knees: Larissa's panties. Carrie has forced you to cum all over her youngest daughter's panties, and you have absolutely splattered the tiny undergarment with your jizz.
"Okay girls, that's enough," orders Carrie, simultaneously releasing your cock.
Kylie sits up, demurely wiping at her mouth. Larissa on the other hand is left sweaty and panting, her naked body lying limp on the floor. It's only after her slick mound is exposed to the air for a few seconds that she moves her hands down to cup her glistening pussy.
"Have you learned your lesson?"
"Yes."
"Uh... huh..."
"Good. Now go up to your rooms and think long and hard about your punishment just now. Oh, and I don't want either of you wearing a stitch of clothing. You see how it feels to be stripped like poor Riley."
After a moment of silent acknowledgement, Larissa is quick to scramble off of the floor. She grabs Bree, pulling her out from under you, and they run together to the second floor. Kylie is far more composed and follows the other girls at a slower pace, but she gives you a questioning look after spying Larissa's now soiled panties beneath your deflating cock.
You don't rush anything and allow a little more time for your head to clear. While you do, Carrie pulls your semi-hard dick back through your legs - as soon as Kylie is scaling the stairs - and sucks the remnants of your most recent orgasm from your teenage firehose.
"Mmmm. Highschool cum is the best," notes Carrie, smacking her lips.
This is beyond fucked up. What kind of mother does this to her kids? And what kind of brother ropes his sister into it? It's hard to judge someone when you're just as guilty. But now that the sexual haze is lifting you really want to get Bree out of here, and maybe call mom and beg your way out of being grounded for a month. At the same time... what was with Larissa's panties?.