Offline/Own how weird you are and get Beth to do more
"Yeah, we are," you nod, really owning it and confidently licking the "drool" from your knuckles. "Most guys won't do that. You two are... special I guess. It is more of a girl thing after all."
"What is?"
"Kissing penises."
"It is?" Bobby exclaims, looking dubious.
"But anyone can do it," grumbles Brayden to himself.
"Oh yeah. Pretty much all girls learn at some point. There's some girls who turn it into a big deal and will only do it to keep their boyfriends happy. But other girls really like it, do it lots, and try really hard to be good at it. I just wish we had a girl like that right now."
"Justice, I am a girl! Remember?" Beth pulls the bottle out from between her legs and rises to her knees so she can reveal her sudden lack of a penis, flashing her tight slit with a wiggle. "You are the ones who wanted me to be a boy so bad! But... are you saying you want me to be a girl again? Because I can be if it'll help!"
"Well, maybe... but only if you do all the things that girls do."
"Sure!" She pulls her cap off, letting down her hair, giving it enough of a shake to help it drop back over her shoulders and completing her reverse gender transformation effortlessly. "It's like I was saying; Girls can do anything!"
"I hope so... But if you're a girl again then you really need to do lots more penis kissing."
Beth sits back and chews her smile briefly before giving a happy little bounce. "Okay!"
That's all it takes to get her back on your dick. Watching her bend all the way down until her mouth envelopes the tip of your cock is glorious, especially being able to watch her without the hat in the way. There's an open joy to her now, glancing up at you coyly while she tucks her hair behind her ears, giggling softly here and there, embracing her naughtiness fully. She tilts her head from side to side, making out with your foreskin with cute but earnest movements, seemingly tickled that she is 'supposed' to be doing this sort of thing. She pulls back after a solid little make-out session and happily wipes at her lips again.
"That was good?" she asks.
"Yeah, way better."
Beth giggles some more and gives her bum a little bounce on her feet. Meanwhile Brayden silently leans down, sheepishly getting in some more kissing practice of his own while Beth plays with her hair. You raise an eyebrow at him, surprised he still wants to, but you're not gonna stop him. You already told yourself you're not going to say no to a warm mouth. Besides, blowjobs are only gay if you're giving one.
"What was better about it?" asks Beth.
You pull your hand off your cock and lean back a little, as if trying to relax, and give lazy looks down at Brayden as he "kisses" you, rubbing himself while holding his lips against your tip. "Oh, uh, I dunno. It wasn't, like, amazing. But you were more into it I guess, which was good."
"Whaddya mean? Did I do it wrong?"
"Not 'wrong' exactly. But... well, it's like you're afraid to touch it," you share, again glancing at Brayden. "It's a lot better when you touch it."
Following your suggestion, Brayden pulls his hand off of his own cock and brings it to yours. But he's still really timid about the whole thing and only brings two fingers and a thumb to grip you right behind the ridge of your glans, like he doesn't want to risk going too far. But he does start kissing you faster, either emboldened or more excited by that tiny step forward.
"I can do that!" Beth insists, nodding her head. "What else?"
"Maybe... open your mouth more." You say this looking straight at Brayden. He pulls off, licks his lips, then comes back in at an angle to suck-kiss the side of your glans, choosing to pull your foreskin out of the way first. "Yeah... It's nice when you kiss different sides of it, but if you open up your mouth, then put the tip of it all the way inside, then you can kiss all around it all at once."
She giggles at what she thinks is a silly suggestion, not even paying attention to her brother, but she's more than game. "Sure!"
"And you've got to kiss it lots of times in a row. And try not to use your teeth."
Beth seems shocked by that last one. "Huh? Did I? I didn't mean to!"
"No, no, you didn't. I'm just saying you shouldn't."
"Oh. Okay!"
You and Beth stop planning and proceed to watch her brother. Brayden is so lovingly attending to your cock now that you don't want to interrupt him, especially since Beth has already been hogging you. You would still rather that Beth try to improve her skills but you really can't bring yourself to stop him, not after Brayden instinctively starts to stroke you during his extended kiss and pumps a fresh serving of precum onto his lips. Thankfully Beth doesn't mind butting in.
"Are you pretending to be a girl now?" teases Beth.
"I just wanted a longer try," mutters Brayden, quick to right himself. "G-guys do this stuff too y'know."
"But girls are supposed to," she notes with an air of indignation. Brayden doesn't reply. He simply observes as his sister takes back her rightful place above your dick.
Trying out your latest suggestions, the first thing Beth does is grab your cock. It's a very ginger grip at first, similar to her brother's, and she smiles nervously at both of you, almost laughing at herself that she's holding a real penis. But then she gives you a little squeeze and watches your lengthy erection twitch under her touch.
"It's so hard!" she comments, angling it from one side to the other.
"You know this is kissing practice, right?" you jeer. "Not staring practice."
"Yeah! I know!" she says, still inspecting your johnson.
You patiently give her more time to look you over and she eventually makes her way to your tip. She kisses much like before, her lips pushing back your foreskin softly. But it does seem like her mouth is more open as your glans enters her mouth more freely this time. Otherwise she's still just trying to kiss you - closing her mouth repeatedly, her lips massaging your cock head, her tongue pressing and flicking at your tip reflexively when she makes contact - but she now has a very steady pace, almost one kiss per second.
This is already so amazing that you could hardly ask for more. A brother-sister team swapping spit with their older cousin's cock, strands of her hair dangling down past her face to tickle your pelvis with him observing beside her with great intensity, ceaselessly stroking himself just waiting for his next turn. But you still want more.
Posturing forward a bit you reach up and place a hand behind Beth's head. She freezes and looks up at you but you keep her from moving away. You give an inviting grin and a reassuring nod before applying pressure to the back of her skull. Her eyes open wide but she lets you gradually push her down onto your length, making her draw your cock into her mouth. Her fingers stay wrapped around your foreskin, locked at a fixed distance from her mouth, which makes her pull it further down your shaft right before your entire glans slips past her lips.
You keep pushing her, wanting to fill her mouth, in more ways than one. Her delicate tongue dances along your ridge, twitching with uncertainty, until it finds the underside of your shaft where it dances and glides from side to side to measure the girthy sausage stuffed in her mouth. Her lips are locked to your cock but her teeth are held back, mindful of your prior guidance. You'd love to shove her all the way down and smush her nose into your stomach, but when you feel some frightened resistance from her you relent.
"Yeah..." you sigh encouragingly, easing her back up to the top. "Kissing all the way around..." Once she has her lips above the ridge of your glans again you stop her ascent and guide her back down just as slowly as the first time. She's a little skittish about it the second go around but once you push her no further than the first try she relaxes a bit. Getting back to the top, she pulls away with a giggle, though her hand continues to hold you steady.
"That's super weird!" she shares, starting to blush. "You like that?"
"Yeah. But you're not supposed to stop."
"Huh? Why?"
"Because you're supposed to keep going."
It's not much of an explanation, but she lets you pull her back down for a third and a fourth time more smoothly, her impossibly soft lips caressing your shaft as you slip in and out of her soft mouth. You only really get her to go an inch of the way below your ridge, but there's something even more satisfying than that delightful sight. The combination of her small fingers stretching your foreskin down your shaft, unintentionally stroking you before your bulbous tip passes all the way behind her lips to meet her tongue is downright blissful.
"That is really good," you inform her. "Just... keep doing that."
After a few more guided thrusts, you pull your hand away to let your little cousin continue the established tempo all by herself as she tries to swallow the few inches of cock that her cramped 8-year-old mouth allows her to. Leaning back a little lets you really start to enjoy it. You slide your hand along her cheek to flip her naturally wavy locks out of the way so her brother can watch the action, then tilt your head back and let out a satisfied moan.
Then it hits you. You've already been jerking for a while. You just got her going, but her mouth feels so comfortable and warm. You suddenly realize you are perched right on the edge and have just enough clarity of thought to reconsider filling Beth's face with your hot splooge completely unannounced. That might just betray her trust and ruin the mood. Despite teetering so close to cumming, and wanting to do it so bad, you manage to lift her off your cock before it's too late.
"Y-you should stop," you explain, flexing your taint to help buy time and let her get out of the way.
"How come?" she asks, the rosy tint to her cheeks making her look as cute as ever. But her brother doesn't give you time to respond.
"Yeah sis, quit hogging. I want a turn."
Brayden bumps shoulders with Beth as he leans past her, gripping your diamond dick with unexpected gusto and sinking your cock into his mouth. And that's all you can take. Your hand shooting out to the top of his head and latching onto his short hair, you rocket past the edge you were riding, your wad exploding inside the older sibling with a guttural moan. It's a strong initial blast that has to nail his tonsils point blank, coating the back of his throat with a thick burst of spunk. He coughs once around your cock, still trying to push his way down it, then pulls off after a second pulse slams into the back of his mouth, but not before your third dumps down the length of his tongue. Your fourth shot shoots up into his still gaping mouth as he rises, splashing past his teeth.
He's not sure what to do about this. He doesn't spit or cough or heave or anything else, just remains positioned above your spasming cock, his mouth coated with your cum, letting your milky gift pour past his lips and back down onto you, holding your meat firmly as you continue to orgasm. The look of shock on his face as he tastes your baby batter is contrasted by his own cock flexing and bobbing underneath him while he otherwise remains perfectly still, both of you watching your cum drip from his gaping jaw, rapidly coating his hand and your pelvis.
"Aw, Brayden! Why'd you hafta drool all over him?"
From Beth's perspective that's all that could be pouring out of her brother's mouth, and it's true that it would seem to be a silly thing to do, drool all over anyone's body parts. But Brayden isn't so naive. He knows exactly what has just happened. You're not helping, your fingers still clenching his hair, but he doesn't move after you let go either. Through some combination of shock, shame, and maybe the thrill of it all, he stays glued to you, staring down at your still pulsating shaft as the remainder of your orgasm pulses out of your tip and dribbles down over his fingers.
"You made him all gross!"
Brayden finally closes his dripping mouth and wipes at his lips. You assume that's so he can respond to his sis, but his mouth stays closed as he continues to stare at you. Once your climax is complete, your whole pelvis a mess, Brayden warily slides his hand up and down your length, pumping your cum through his fingers and over your shaft, his heart no doubt racing. He only manages a few pumps before the two of you make eye contact. That breaks the spell, Brayden pulling away abruptly and frantically wiping some of the cum off of his hand and onto his stomach.
"You should at least wipe him up, Brayden! I don't wanna kiss him like that."
Brayden is too flustered to reply. He rises to his feet, and you half expect him to run away, but he instead paces a tight circle in the corner, his cock still rock hard. He bends over to pick up a shirt, then drops it. He then strangles his rod, furiously pulling his pud for a second before stopping. He's freaking out a little.
"Uh, actually... I think we're done now. But, um... Brayden? Hey." You grab his attention long enough for him to stop and look at you. "Thanks for that, dude. Seriously."
He's still processing what just happened, but that helps calm him down, like he only did what he was supposed to. He smirks at you then tries to do a better job of cleaning off his hand after already rubbing your cum over the length of his own dick. You sure came lots, and you have to wonder how much of your cum that he ended up swallowing when your consider that most of it did shoot into his mouth, even if much of that flowed back out.
"Hmph. I didn't want to stop. Way to go, doofus."
You share another look with Brayden. Best to leave Beth in the dark on this one. Nearly lightheaded from cumming so hard, you grab the closest clothes you can find - your boxers and Beth's kitty panties - and sop up the mess pooling around your cock and running down onto your sleeping bag. Beth is confused and disappointed as to why everything is over all of a sudden, but that's fine. All you feel is relief. You needed that so bad. But the calmness is short-lived.
The heightened clarity that comes from your horny haze lifting spooks you a little when Brayden and Beth start digging through clothes and your mind begins to race.
"Don't get changed!"
"Why?" asks Beth.
"I... I mean just put on what you were wearing. That's all."
"Oh."
If no one cared about Brayden playing soccer in his underwear, it's unlikely they would care about them changing their clothes in the middle of the day, but you'd rather not chance that. The siblings just shrug and do as they're told. Brayden looks for his shorts while Beth finds her Hello Kitty panties smeared with your cum. She sneers at them briefly, contemplating whether it's worth it, before deciding against it and choosing to forgo undies entirely as she steps straight into her light teal short leggings, hiking them up her waist (and against her pussy) just as she did this morning. She also grabs the baseball cap but doesn't bother tucking her hair under it, Bobby giving way fully to Beth, the fun of pretending to be a boy having ended with your climax.
You also just used your own underwear as a cum rag, but you allow yourself to dig into your bag for something fresh. New boxer briefs and a pair of shorts better suit the weather anyways while at least maintaining the shirtless chic you had all displayed at lunch time. Once everyone is dressed you lead the way back to camp. Although you could still do so much more out at the cabin, your thoughts more twisted than ever, you don't want to push your luck. So frisbee and soccer sound like much better ideas for now.
After arriving at camp you are quick to split up. Beth gets called over by Aunt Becky (in her crazy sexy bikini) to join some other girls in some sort of treasure hunt. You figure that you and Brayden can still find something to do together, but then he awkwardly ditches you to go play with Wade. You can't help but feel insulted. He better not be upset about what happened. You tried to avoid exactly that. It's not your fault that he wants to gobble cock so bad. But you don't blame him for wanting space either. He probably needs time away from you to help make sense of it all.
By yourself, mid-afternoon, on the hottest day so far, you wander around taking in the sights and sounds. Nicole is with her mom doing some kind of craft. Jet and his girlfriend are busy fondling each other behind a cabin. Your sister is probably trouncing around with Asha someplace. But with so many people wearing swimsuits around camp you figure there must be no one left at the river. You haven't even been there yet, not since you first stumbled across this place with your uncles. It might be a good way to clear your head. Otherwise you could snoop through some cabins to kill some time.