Author's note:
As with the rest, this chapter heavily features watersports. Also BDSM elements. Just check the tags.
It also is longer than the other 3 chapters combined. I might have gone a little overboard and let things get out of hand. Oh well, that's fantasy for you. This chapter will likely serve as the climax of the set, though not the conclusion. There will be more but I am moving towards wrapping it up.
I had a goofy grin on my face as we walked along the dirt path, enjoying the afternoon. We had begrudgingly gotten dressed, wanting to see a little bit more of the park than just the inside of the cabin and the little lake we had been skinny dipping in on the first day. Still, I was pretty happy, walking along with my arm around my older sister's narrow waist, my hand in the back pocket of her daisy dukes, feeling her ass flex with each step.
It was admittedly a little tough to match my stride to hers, being so much taller, but I didn't mind. It was kinda cute when her hip bumped into my thigh if our steps got out of sync. We had been walking for about a half hour, and were well away from the cabin we had rented. We'd spent most of the walk in silence, just enjoying each other's company and the afternoon sun breaking through the trees, the quiet whistling of birds.
"Oh, hold up. Do you hear that?" I said, stopping short.
Julia stopped to, and cocked her head to listen.
She shook her head and looked up at me, waiting for me to make the next move. I loved how she had really gotten into being submissive to me in so many ways since we started our little vacation.
"You don't hear it? Sounds like some heavy bass," I said.
My sister looked forward, tilting her head again and closing her eyes to try to listen better. After a moment she shook her head again.
"Come on, let's keep going." We walked on a little farther, but it wasn't long before the thumping bass line of some kind of EDM was obvious to both of us.
"Shit, sounds like a party," Julia said. "Want to check it out?"
"Hell yeah," I replied, so we continued on following the music as it got louder. Eventually it was obvious it was coming from somewhere off to the left. I saw a narrower trail between some trees that intersected with the path we were on.
"Come on, maybe it's another cabin," I said.
So we headed up the little path. I fell a little bit behind Julia, and she obliged me with what she knew I wanted. She exaggerated her motions, swinging her hips. I watched as her back, mostly bare since she was just wearing her bikini top, curved to the left and the right, her waist narrowing deliciously before flaring out a little to her hips. She wasn't super voluptuous, but she wasn't a rail either. I couldn't help but watch as her lower back dimples shifted back and forth while she walked. I could look at my older sister's ass all day every day. I still couldn't really believe what I'd already done to it during our time in the cabin.
She stopped just as another cabin was coming into view between the trees. Reaching back to grab my hand, she pulled me off the trail and behind a particularly large tree trunk. Julia turned around and looked up at me with those emerald green eyes.
"I saw some people out on the porch...I don't know if we want them to know we're out here. Though it does sound like a fun party."
We could hear some voices as well as the music, laughter and shouting. I nodded and peeked around the tree, not really able to see much other than a few glimpses of the cabin. It looked like it was significantly larger than ours, two floors. Probably had more bedrooms, for a larger group.
"Come on," I said.
I didn't bother trying to walk carefully, I figured the music would cover up any sounds of crunching leaves or breaking twigs. I
was
careful to stay behind the next tree in front, out of sight of anyone that might be out on the porch. We were maybe 50 yards away and coming to the edge of the forest. I stood behind a final tree, and Julia came up behind me. She put her arms around me, slipping her hands into my front pockets and giving my cock a teasing squeeze. I felt her tits pushing against my back, soft with little hard points in their centers.
I peeked out again, and sure enough there was someone out on the porch. Looked like just one guy. There were beer bottles and cans scattered about. Apparently the party had been going on for a little while. The guy looked a little older, probably my sister's age, early 20's. He was standing just behind the railing, his hand on a beer can set on the top of the rail. Nonchalantly he unzipped his pants with his free hand, fished out his dick and pointed it between the slats in the railing, pissing out onto the ground.
I grinned and turned my head to the side, talking to Julia over my shoulder.
"Here, get in front of me, you should see this."
She pulled her hands out of my pockets and stepped in front of me as I stepped back a little, giving her room between me and the tree. I put my arms around her stomach and felt more than heard her moan over the thumping beat.
"You'd like to drink that wouldn't you, little piss slut," I whispered, leaning down to speak directly in her ear. My sister hesitated, then nodded.
"You want to take that frat boy's cock in your mouth and swallow down his piss don't you?" I said.
She nodded again, more vigorously this time. My mind, heart, and cock were all sending me conflicting signals. I was full mast thinking about my newly minted slave servicing someone else, but I was also jealous at the idea of my sister putting her lips on another man's cock.
"Oh shit," I heard her say.
I hadn't been watching, so I hadn't noticed that a pair of girls had come out on the deck. I leaned out again to look and saw two blondes, both in crop tops and short skirts and seemingly closer to my age. They got to the railing, both standing to the right of the guy who was still pissing. It had probably only been about 20 seconds, and if he'd contributed his fair share to the empties he probably had quite a full bladder. Neither seemed to notice what he was doing at first and just started talking to him as he took another swig from the can in his hand. I chuckled at the thought that popped into my head: "
Beer in, beer out.
"
We stood there watching the guy piss into the dirt for another few seconds. The girls were chatting, both a little wobbly. Our tree was too far away to hear them, but I didn't need to hear them to know what they were discussing when they turned and saw their fellow partier, his dick out. The blondes pointed and laughed, which is definitely not the reaction a guy ever wants when a women looks at his dick, but it quickly became apparent that they were laughing at the situation rather than the size or shape. Still, I can't imagine it was great for his ego.
The next moment was straight out of a porn, like one of the many tabs I'd opened up on my pc that day after I peed in the bathroom while Julia was in the shower. It was only like two and a half weeks ago but it felt like a lifetime. I'd already lived the fantasies in so many of the videos I jerked off to, it was hard to believe that there were more boxes left to check.
After their giggle I saw the two blondes turn to face each other. The dude had just shrugged and took another swig from his beer, his piss slowing down and just dribbling onto the wood deck. He grabbed it, gave it a few good shakes, tucked it away and headed back inside. Before he had finished, the two girls had turned around with their backs to us. Almost in unison they hopped up onto the railing, their butts hanging off the back. Two hands reached around under two skirts, and two neon thongs came out from between two ass cracks.
I don't know who moaned first, me or Jules, but we both reacted to seeing a pair of wide sprays jetting out from their crotches. Even though there was clearly a lot of pressure, I couldn't hear it hitting the deck or the dirt below, but I did hear them giggle.
"You'd like to drink that, wouldn't you, sir?" Julia asked me in a whisper.
Even though she used the honorific I'd insisted on, her tone was sassy as she threw my words back at me. I playfully smacked her butt.
"You want to put your mouth on those sorority sluts' pussies and swallow down their piss, don't you
sir
?"
She was smirking back up at me, the cheeky little bitch. I yanked her long braid back. Looking right into her emerald eyes I saw a swirl of emotions.
"You're fucking right I do. I'd love to drink their piss right from their slutty little pussies. Just like I do with a certain other college whore."
She blushed and looked away, casting her eyes down since I still had hold of her braid, and for a second I thought I'd fucked up, that I'd gone too far and upset her or made her jealous. If I had though, she was like me and her lust overrode that jealousy. She arched her back and pushed her ass against my crotch, rubbing her daisy dukes against my shorts.
I mumbled something incoherent and let go of her hair as her butt brushed my dick but we were both clearly focused on the two chicks pissing a few dozen yards away. I wondered for a second if Julia wanted to lick their cunts and drink their pee too. My sister had never expressed an interest in girls to me before, but then it wasn't until the last few days that we had really gotten to know one another in that way. I made a note to ask her about it later. Not that I knew any girls that would piss on her, that was the whole thing that started the conversation that kicked off this crazy week, the fact that I was into pee and my girlfriend absolutely wasn't.
My girlfriend.
I shook my head to clear it of the thought. I didn't know what the fuck I was going to do about her once I got back. It's not like I could date my sister or even keep hooking up with her for long, and my girl did let me fuck her ass. But I also knew that it would be a huge struggle to pretend like I hadn't spent a week absolutely drowning in debauchery only to return to a pretty vanilla sex life.
The sight ahead cleared my mind, or rather filled it with other thoughts. The girl on the right let her bright yellow thong snap back between her tanned cheeks even though she hadn't finished. I had to keep myself from laughing out loud as she leaned forward and practically fell off the railing and stumbled a few steps, still pissing. She must have been pretty drunk. I wondered if the party had actually started the night before if the three sloppy people I'd seen so far were any indication. The girl got control of herself pretty quickly, straightening up and either finishing or cutting off her flow, but her thighs glistened in the early afternoon sun.
"Hurry uupppp-uh" she told her companion, the other girl still urinating off the side of the deck.
"No no, take your time" I mumbled, eliciting a giggle from Julia.
I could see the stream turn into a wide spray of golden droplets and guessed she was bearing down and trying to push it out quickly. There was some other back and forth with energetic hand gestures. I couldn't hear it with the distance or over the thudding bass from the cabin.
"She's asking for something to wipe," Julia informed me.
I didn't know if she was reading lips or just guessing on the context of the situation. I wondered if she'd been in just such a scenario, pissing outside at a party without a tissue at hand. I decided to test something.
"You should offer your tongue," I whispered into her ear.
I felt my sister shudder and push her ass against my crotch again. That settled that, even if she never had before, she was
definitely
