Offline/Snoop through Nicole's bag
You peek out the cabin door on the off chance she's coming at this very moment. Seeing no one coming, you decide to have some fun by snooping through her bag. You know it's kind of a shitty thing to do. You're not even sure what compels you to do it, other than your boredom. Maybe the buzz from your beer is helping. You've hardly ever drank before.
Moving to her side of the cabin (the few steps that takes you) you step on her swimsuit that sits on the floor next to her bag. That brings equal parts arousal and shame from earlier to your mind. Those thoughts don't stop you from poking through her bag though. She has some books in here, ponytail scrunchies, lotion, more books, a wide assortment of panties but only a couple of bras, along with pants, shorts, tanks, t-shirts, all standard stuff, although there is a lot of it. But you curiously spot a lone thong.
You didn't take her for a girl who would wear thongs, let alone bring one (and only one) camping. She definitely has the butt for it though, of that you're certain. With that image in your mind, you pull it from her bag, the ambient flashlight illumination making it hard to see otherwise. It's a lacy article, flimsy straps wrapping around the sides with just enough fabric underneath to do its job. You pull on it and find it's pretty stretchy.
Curiosity getting the better of you, you step into the lacy article and pull it up your legs, nestling the strip of fabric deep between your cheeks. Your junk does not at all fit in this. It can basically only support your balls. The limited amount of material is so soft and silky against your skin. But ignoring that, it seems so weirdly uncomfortable to have fabric nestled against your asshole all day. Then again you would be willing to wear something uncomfortable if it got a girl's attention, so you sort of understand.
Your curiosity satisfied, you peel off the undergarment and put it back just as you hear the door open... while you're butt naked hunkered next to Nicole's bed. You turn and dive for your sleeping bag as someone steps inside. You can't unzip your bag before a flashlight hits you.
"Oh my god!" Nicole shouts. "Are you... jerking off?!"
"No!" you shout back. "I'm changing!"
"What's he doing?" That's your sister's voice. You're still struggling your way into your sleeping bag. Of course for all you know the whole camp is at the door since you can't really see past the flashlight pointed at you.
"Emma?! Go away!"
"No! Nicole said I could come! So make me!"
You very nearly stand up and do just that, until Nicole chimes in.
"I offered to let her sleep with us tonight. Her bunk buddy got sick. But I didn't think you'd be here so early. And I definitely didn't think you'd be jerking off."
"I wasn't jerking off," you say calmly but angrily, now cocooned inside your bag.
"Then what were you doing?"
You think about it for a second, trying to come up with anything besides the truth. "Okay, fine, I was jerking off."
"What the hell, Jay? That's gross. I have to sleep here you know."
You actually get a bit defensive. Rubbing one out isn't a crime, even though you weren't rubbing anything. "What's wrong with that? It's my cabin too."
"Is that when you touch yourself?" Emma whispers to Nicole
A pink sleeping bag is thrown down in the middle of the room and the girls step all the way inside the cabin, Nicole dodging most of your sister's questions. Maybe they didn't actually see anything. For all you know they turned and looked back out the door after they spotted you, but that seems doubtful considering the light that was trained on you until just now. You do feel a bit like Nicole must have when you caught her changing, embarrassed and vulnerable, although the difference was you 'caught' her on purpose.
Nicole rolls out a foam sheet for your sister's sleeping bag and Emma unzips her backpack beside her cousin's. Your sis suddenly starts to undress in front of both you and Nicole like neither of you are even there. Meanwhile you're practically an arm's length apart. She does turn away to face the corner but only after she notices that you're both looking at her, with Nicole giving an especially funny look. Maybe Emma thought she had darkness to protect her, but with two flashlights here there's now plenty of ambient light in the small room to see most anything.
She's nearly butt naked now, only a plain pair of panties hugging her non-existent hips. You swear she even contemplates dropping those but instead starts fishing through her bag. Nicole's not bothered by it but is at least surprised by how unconcerned Emma is to strip down. But when Nicky notices how uncomfortable you are, and maybe to rib at you for what they 'caught' you doing, her funny look quickly turns mischievous.
"Hey Emma," she starts before swiftly removing her top. "Can you help undo my bra for me?"
Your sister, standing in only her panties, turns to her cousin with a smile. "Sure!"
Laying naked in your bed watching your pantie-clad sister undo your cousin's bra is by far the strangest and yet hottest thing you've ever witnessed with your own eyes. You assure yourself that your family isn't turning you on, it's just the sight of two girls undressing each other. Your dick doesn't know better. But with the look on her face there's no way Nicole isn't purposefully torturing you by doing this, giving you knowing glances while Emma struggles with a tight clasp.
"There!" announces your grade school sibling.
"Thanks cuz!" replies Nicole.
"You're welcome cuzzy!" Emma cheerfully sings.
Nicole turns her back to you and drops her bra into her bag, but despite angling herself away from your gaze someone standing next to her has a great view. It's now Emma's turn to stare, your sis taking blatant sidelong glances of her cousin's boobs. However small they may be, it's a lot more than Emma has. Nicole pulling on a tank top is the only thing that makes Emma quit leering and return to her own bag. And while your sis pulls out her nightie, your cousin slips out of her pants.
Nicole is not wearing a thong (which is slightly disappointing) just plain old panties, but you're not complaining. Just seeing two girls a few feet away from you strip down to (and even out of) their underwear has your dick rock hard. You're caring less and less that they're related to you, even if one of them is literally your sister. You just slowly, silently, and shamefully beat your meat inside your sleeping bag while you watch, as if you didn't even have a choice in the matter.
Your sister is ready once she pulls on her nightie, which looks more like a shirt frankly. Nicole hasn't finished changing but this is as far as she's willing to go in front of you, despite the fun she's had so far. She grabs her sleep shorts and crawls into her sleeping bag, changing out of her panties in privacy.
"This is really small for a cabin," comments Emma looking around, stuck between the two of you.
"I don't think it's meant for three people," you sneer, still tugging yourself.
"What's it meant for?" asks Emma. It's actually a reasonable question. Maybe hunting or something?
"I'm sorry if having so many girls around bothers you, cousin," teases Nicole. "I promise we won't do anything else to bother you."
It's an empty promise. They're up for a long time chatting about all sorts of dumb things. You eventually have to stop jerking, not only for fear of getting caught but not wanting to mess up the inside of your bag. Your erection slowly subsides and after far too much time laying next to your sister butt naked, you grab both boxers and shorts from your bag and slip them on. That allows you to excuse yourself and take a walk back to camp.
The fire is still going but the music is long gone. There are the same group of late night stragglers drinking and talking. You eventually head over to the outhouse telling yourself you need to take a whiz. After a few frustrating minutes spent jerking your limp dick, half bitter about your sister and half pent up and desperate for release, you find the ambiance does little to inspire your imagination. Robbed of release, you head back to your cabin. The girls are already asleep by the time you get back so you shimmy out of your shorts and hit the hay.
---
You awaken to the view of your sister's butt in your face. Your eyes open wide once you process what you're seeing, but seeing more of it doesn't help make sense of it. She's actually all the way naked standing on the floor next to you, bent over in front of her backpack which she's placed on top of her sleeping bag, giving you an eyeful of tight little girl ass. You have no idea what she must be looking for, but she's got her hands near her face giggling away and taking her sweet time doing whatever it is she's up to. Ashamed to have your dick twitch again - and with morning wood at the ready - you reach up and pat her flawless little butt with the back of your hand.
"Put that away," you grumble.
"Justice!" Your sister whips around and smacks you in the face with a pair of panties, apparently holding them this whole time. As if seeing her butt wasn't enough, now you're staring up between your sister's skinny legs at her smooth pussy while she looms over you with her hands on her hips. "You're supposed ta be asleep!"
"Why?" you ask confused.
"Cause I... was still getting dressed!" she explains, stompily stepping into her underwear.
Nicole chuckles from her sleeping bag, her eyes peeking out of the top of it. There's more to this than they're letting on but you leave it for now. Your erection from last night is back with a vengeance and it takes quite a bit of boring conversation before it subsides again. You all get dressed - some more discretely than others - and head back to camp, making sure to haul Emma's sleeping bag back to her regular cabin. You pester Nicole about it but it's not until after lunch that she finally explains what you saw.
"We only agreed to one but Emma really wanted to stay another night with us after she woke up. So I told her that if she could stand next to her brother naked for 10 whole minutes and not get caught that I'd let her stay."
Your face scrunches up all on its own. "What? Why'd you pick that?"
"I dunno," she says with a sly smile. "I guess to mess with her. And maybe just to see the look on your face. But I didn't actually think she would go through with it either! I didn't want her to stay two nights, which is probably the real reason. I just felt bad that she was getting kicked out of her cabin after Asha got sick. I mean your sister is nice, but really chatty."
"Well... how long did she do?"
"Umm, honestly? I have no idea. I wasn't counting. Probably 10 minutes, but who knows. It was a long time. She kept asking if she was done and I just kept saying no. I warned her at one point that if we kept talking you'd wake up. She covered her mouth but started giggling and I think that did wake you up. Seriously, your face though! You were totally shocked!"
You hardly even believe your sister was willing to do that just to win a second night in your cabin. She's a little crazy, granted, but that's a little much. You're almost as surprised that Nicole dared her, but your cousin isn't like most girls, that much you know by now.
Despite the weird start, you end up having a great day together. It's still hot but a little cooler than yesterday and perfect for just hanging out and doing nothing. You joke around constantly, both of you laughing a little too hard at each other's antics and just happy to be near one another. It would be a perfect family trip if pussy wasn't perverting your thoughts the entire time. Your little sister's soft hairless slit flashes in front of you followed by Nicky's fuller puffy lips; round and around, back and forth all day through your brain. Even well after dinner, the sun starting to set, these images keep popping into your head. You feel guilty that you saw them, and feel guiltier that you want to see more of them. You need to let it go. You can't really 'enjoy' yourself with so many relatives around. And although it would be nice to deal with it, you don't really want to have to trek into the middle of the dense woods just to jerk off in peace. Still, you have to do something.