Offline/Try to convince Aunt Becky to let Asha stay one night
"Okay... you two just stay here for a while. I'll talk to Aunt Becky about Asha sleeping over, but just for one night." The girls 'aww' in unison. "I just don't want people to bother us. Like, if you're here for 3 more nights your mom will want to bring all your stuff here and probably check up on you, and we can't have no rules if our parents keep stopping by."
Emma, perhaps reminded of what happened this morning, turns to Asha with a real serious face. "Yeah, you can only stay tonight. But we'll have the mostest fun EVER!"
The threadbare girls grab each other's hands and dance and sing in a circle. You quietly slip out and head back to camp. They better not ruin this for you.
You find Aunt Becky and explain the situation, Emma 'graciously' offering to share her bed with Asha for one night to help her out. Your Aunt asks which cabin they're in and offers to grab them some spare clothes since she already has some of Emma's hung out to dry. You decline and deflect, insisting that Emma has plenty of things for both of them but they can always come grab something else if they need it and that they're already having a blast. She shoots you that warm smile and thanks you with a hug which you draw out as long as you can. Your aunt has such a fabulous body and, even with the campfires and wilderness and lack of showers, she somehow smells like sweet coconut. One last attempt is made by you to get Aunt Becky into a bikini but she shoots you down again. At least you can say you tried.
Feeling accomplished, you get distracted by some frisbee then spend time chatting with some of the other family you have still hardly seen (mostly because mom drags you over there). Wanting to collect Emma's overalls, you eventually excuse yourself and make it down to the river. While you find the shorts right where she left them, you also spot the pieces to Auntie Grace's swimsuit nearby but with no sign of her. It's so weird seeing it just sitting here and not on your aunt's body. It's basically all she's been wearing so far this trip. In fact you can't even picture her wearing anything else. You're positive she must be naked right now. But her bikini looks so enticing thrown down on this rock. Anyone could just grab it and...
Since you're already collecting clothing, and hoping to inspire your Auntie to do some skinny dipping, you snag her bathing suit as well, nonchalantly tossing it into a rusty barrel when you walk back through the camp.
Returning with at least half of Emma's outfit from this morning, you find your sister more or less how you expected her given her recent behavior; still butt naked. Worse than that though, she's knelt down in front of her cousin who curiously also hasn't changed and is sitting on a pink sleeping bag with her feet spread. And... yep, there's Sparkles, being eagerly rubbed against Asha's crotch by your sister.
Asha closes her legs when you enter, the lightly tanned girl still very much aware of her lack of modesty, unlike your sister. Of course Emma is having none of that and forces her cousin's legs open.
"It's okay, it's only my brother. Besides, this isn't even the best part!"
You shake your head. Your sis is really not making this easy for you. Actually, she's making it too easy. Still trying to maintain some restraint, you rummage through your bag to find a razor then exit the cabin again. You wander around the partial clearing before giving yourself a dry shave, having to go by feel alone. You don't have much facial hair yet so it's not much work, but it's something to do and has been getting a little itchy. You follow that up with a nervous pee and then, noticing the lengthening stubble around your dick, put your razor to further use. Your trunks have kept your pubes damp and soft so you chop through the stubble with little effort and no real discomfort. You're even proud of the quality of your work, your shaft and balls nothing but smooth skin and now extra sensitive. It even feels better just to grip yourself, an act that quickly has you sporting a full stiffy.
You can't lie to yourself with a hard on; you at least want to watch. You walk over to the cabin window opposite the girls. It looks like Emma has picked Asha clean already and has moved on to playing with her cousin's pussy sans-slime, the pretense discarded. You can't say Asha looks entirely comfortable with this, but she hasn't moved either. She certainly wasn't comfortable with you walking in on them but that's a pretty natural reaction. Still, maybe she won't be able to handle all this, especially considering what your sister has already pressured her into doing.