AN: As a treat for I have no idea what, this chapter is especially long (3200 word+) – the longest chapter by quite a bit as of yet! So…hope you enjoy:

Jason's PoV

The whole group went down to the lake shore where they watched as Percy and I stripped off our outer clothes. I had brought a pair of boxers, my favourite pair (for Piper had made sure), and I managed to get my neon trunks from Valentina (after giving her three pairs of my underwear in exchange). I took off the short-cut boxers from the game of capture the flag and pulled on the neon trunks (I didn't really want to have anything flapping about). I gave Percy the boxers rather reluctantly and he pulled them on – I knew he was going to try and get kidnapped just so he could get kidnapped.

"Look, Percy, don't you dare run off with anything or dangle out a leg. You will not pull down your boxers and you will keep your privates hidden or –" I warned.

"Because you're jealous that the mermaids will be attracted to my co –" Percy replied.

"You wish! You just stay underwater and leave me to it!"

"Because you don't want to lose a point?"

"Exactly. And don't you dare try and lose my boxers. They're my favourite." I said, looking down at them. They were a green colour with clouds flying round it. There was a Superman logo on the front. And he would not lose them. Not if he valued his life. They seemed quite tight on him, specifically around the front – he better not rip them either.

"You are forgetting something important."

"Yeah, and what's that?"

"That the sea's my domain." He said and placed a hand on my trunks and pushed, letting me tumble into the ground. The breath was knocked out of me as I hit the water, I struggled to reach the top. The girls was laughing behind him and Percy turned, waved, adjusted himself underneath the underwear, and then dived in.

His hand grabbed my legs and I kicked to no avail; his hands moved to the waistband of my pants and then pulled downwards, under the water. A bubble was made and placed around my head and then a sword dropped down beside me. Annabeth had thrown it in. I seized it, grabbed Percy's hands, and we swam down into the lake. I couldn't let him escape. We reached the bottom thirty seconds later – at least a minute had passed by now, I had it on the watch I'd borrowed from Travis – it would probably go twice as slow, but it was all I had.

We reached the bottom and I seized Percy by the arm and pinned him on the ground before grabbing the seaweed and hastily tied him down onto the ground before going up and holding the sword steady. Half a minute went by; nothing happened.

"You alright down there?" I asked and looked down. He was still there, much to my relief, but I realised his boxers were halfway down his thighs and he was trying to wriggle them off. Idiot!

Percy's PoV

If I could have wriggled them off with Jason noticing, it would have been great! But, alas, he swam down, punched me in the balls (thank the gods for water resistance), and then pulled them up. His eyes directed at me every ten seconds, just to make sure.

A minute later, there was a dart at the corner of my vision and a hand crept towards me, untying the seaweed. I didn't cry out. The hand pulled me and dragged me across the bottom of the lake. I looked up and saw there was a mermaid in battle with Jason, his eyes were diverted.

I was in the cave not long later and a pair of hands, belonging to the mermaid, grabbed me and pushed me against the bed. Her hands trailed down to the boxer shorts and wondered over my bulge. She flicked me over in a second and pulled the back of them down and then her hands trailed underneath me, her hands enclosed teasingly around my privates and she pulled me around, leaving me completely naked except for the part she most wanted.

The boxers were on my feet and I kicked them off. The mermaid seized them and pushed her tail into the hole for the left leg. She didn't rip it, unfortunately.

Her hand moved gradually upwards, revealing my skin bit by bit, a slow tease. She seemed to know I was the son of Poseidon, I was well known, even under the lake. Her eyes scanned me like Aphrodite had not too long before, hungry and eager. Perhaps she wanted to know what Poseidon was hiding inside his immortal trousers. Well, he wouldn't exactly hide it if she just asked. It was easier to get in bed with him than with one of the Aphrodite cabin!

I liked to think I set the bar high when it came to male demi-gods. Her hands and mouth worked on me and she moved herself up my body until her face was level with mine and my boxers were covering my privates, only not in the way they were designed for. Oh god! I was enjoying this! I could see why Jason had gone grudgingly all those days ago…my hands pulled down the boxers – Jason's boxers – on the mermaid and discarded them on the floor. They landed near the door, floating downwards slowly.

Jason's Pov

Left! Right! Duck! Swipe! I managed to make the mermaid dive away and looked down…I saw Percy's feet being dragged away and kicked my legs hard towards him, but he was going way quicker than I was. A mermaid was dragging him, I saw, as he disappeared into a cave. I snuck in behind the two and watched as they disappeared into the room. There was something familiar about it.

The walls on either side of the cave were covered with spears and weapons…and seaweed. I still had the sword with me and so swam on. I passed no one until I reached the door where there were two guards. I lashed out but they fought back, swiping at me with their sharp spears and gnashing their teeth. They grabbed me by the arms and pulled me into the room next door.

I feared for my life! I put my hands in the air and they pulled down my pants. I didn't try to cover my (floating) member. I couldn't tell if I was aroused or not. The guards swum closer and seemed to examine every inch of me. The sword I had wielded had been pushed away with disgust when they had grabbed me.

It was only when their spear pricked at my rear end that I lashed out – partly with fear – and grabbed the weapon, whirling it around and forcing the mermaids to back against the corner. The other mermaid used her spear to jab at the neon pants on the floor and hoisted them up above her head. I sighed and turned away, swimming out of the door and locking it behind me.

I then moved towards the now unguarded door where I knew Percy was. I opened it a crack and was surprised to find my boxers on the floor. That could only mean one thing and I was afraid to look up, but I did; and there was Percy, completely naked, about to play a game of hide the purple parsnip!

He looked up in shock at me, also naked, holding in one hand the boxer shorts (which I had picked up) and a spear which was pointing at him. His eyebrows were raised and the mermaid stood up in surprise, he gasped in shock.

And then his eyes widened further and a hand clasped over my mouth and pushed me onto the bed next to Percy before turning towards me, taking away the spear, and placing the boxers on her head. She grinned at me, a horrible, disgusting, yellow-teeth grin. I wanted to be sick. I felt light-headed.

The ten minutes must be nearly up! I couldn't let this happen! I kicked my legs and pushed the mermaid away and grabbed my spear. I forced her onto the bed and brought the spear down as hard as I could on the other mermaid who was crawling back towards Percy – water resistance wouldn't stop me!

She fell unconscious to the floor and I grabbed Percy, pulling him up. The mermaid who had grabbed me was startled and I grabbed the boxers from her head before turning to Percy and, because I couldn't trust him, pulled the boxers up.

"Tell anyone about this – or take off those boxers – and I will tell Annabeth what happened." I warned.

"Annabeth wouldn't believe it!" he replied.

"You know she would."

"And by the way – that's disgusting. A mermaid? With a mermaid? You'd have it off with a MERMAID?"

"You do realise…that that's exactly the same mermaid who was with you?" Percy reminded me. I blanched. "And if you tell Annabeth then I'll tell Piper about what happened then. Checkmate."

I took Percy out and we swam out. After Percy tried to slip off the underwear at the entrance to the cave, I held a hand fixedly to the front of his pants, preventing the fabric from moving.

We reached the surface not long after, we'd been gone 17 minutes, Annabeth said – always precise.

"You're naked." Leo said.

"Well observed." I said and, feeling a little cheeky. "Though of course you wouldn't know what a real one looks like."

"Shut it."

"What happened to your pants? I enjoyed those neon ones!" Piper said. I also remembered the times we'd had with those.

"Oh…Percy thought it was funny to take them off." I replied, proud at the quick lie.

We climbed back to the cabin and, halfway up, I turned and saw a bit of neon on the lake. Thanks, mermaids! I conjured the wind and brought them towards me. I saw Percy watching me with raised eyebrows. "What?"

"Why are you that bothered?"

"They're good."

"They're neon!"

"Piper loves it when I –"

"When you what?"

"Nothing."

"What? Jason?"

"Nothing."

Percy gave up quickly and we returned to the cabin. "Can I have my boxer shorts back?"

"What do you do with those neon pants?"

"I...I…"

"Do you want them?"

"We both fit inside them…"

"Oh that's disgusting! Did you think of having it off with me when we were in those briefs?"

"WHAT! No!"

"I should hope not!"

"Oh lay off."

It was my turn anyway so I reached in and spun the bottle and, whilst Percy and I changed, it spun. A slow turning…it couldn't go on Percy, could it? It went around, and around, and around…Clarisse. Phew!

"Dare." She said after I sat relieved for a few seconds.

"Give me a strip tease."

"I'd rather do it to a cow!"

"Fine."

"Wait…no!"

"What do I do if I don't want to do it?"

"Strip naked."

"I'll do it, then."

She moved over to me and sat down on my lap, her hands sat on my thighs and moved further up. Piper growled softly nearby, like a dog seeing its owner stroke another. She descended onto my knees, wrapped her arms around my neck, and (with a disgruntled expression) shifted herself so that she sat on my crotch.

"And, Jason, I will not be taking anything off." She muttered to me quietly.

"Shame. It was going so well." I replied.

"I could tell. Your trousers are as tight as your emotions are."

"I would have thought that my feelings are pretty simple right now. I just admitted them."

"Feelings and emotions – the first thing you learn in the Ares' cabin is that they are two very different matters."

"Oh? I thought it was how to kill people with your bare hands in 10 different ways."

"That as well. What are you trying to say?"

"That you are a bunch of battle-loving bastards."

"At least I'm not a sex-loving savage."

"And you're not?" I replied, our voices were rising to shouting level now.

"Well – I do like a boy or two. But I don't get aroused at every bloody person I look at."

"Well you're missing out."

"So is your girlfriend – on a proper experience."

"And what would you know about that?"

"I'm sure Percy would give her a better treatment."

"Just 'cos you don't recognise true talent!"

And then we were at each other's throats like wild animals. She hurled me across the room and I ran, like a bull, to charge into her chest.

"Oh, break up, will you?" Percy said, his voice slightly annoyed.

"Oh, I know." Katie said to the two fighters. "That really wasn't a proper lap dance – you barely undid a button on your blouse! I have an idea."

"A way for me to get at his throat?" asked Clarisse.

"In a way…I don't know what you'll get up to. How about you spend some time in the cupboard. Together. That's the dare. For the two of you."

"No bloody way!" I said and Piper seemed to perk up too but Clarisse had me gripped around the throat and was dragging me by the cuff of my shirt into the bathroom, seeing as there was no cupboard in the room. At least, none that wasn't full of old coats and boots because even Clarisse was above that standard, it seemed.

She pinned me against the wall and her hands moved back to my thighs and she followed by crashing her lips against mine and moving her other hand up the back of my shirt to fondle my hair. I wrapped my arms around hers and kissed her back passionately. Two souls united, war and air together. We were fierce rhinos, horns locked in combat, battling against each other with all our strength, trying to knock the breath out of each other.

My hands trailed down to her chest and her hands moved to my belt buckle, undoing it and pulling it out before wrapping it around my neck. I pulled up her t-shirt in response and my hands felt around his behind. Those firm cheeks hardened by battle; those beautiful eyes blazing; those strands of hair flailing wildly like they were caught in the wind. And seeing as I controlled the wind, that wasn't exactly false.

But then I remembered someone else: Piper. She was wild and fierce but she had something Clarisse would never had, could never dream of having: a gentler, fairer side. An ability to make me fall at her knees in absolute attachment.

And I realised this by the time I was in my neon trunks, my hands already reaching down the back of her blue knickers. I withdrew them and realised that her bra was already off. Her hands were gradually beginning to pull back my waistband and it was only a matter of seconds before she would be seeing my privates on show. And I didn't want that.

I withdrew my hands and used them to take away her hands from my pants. "I wanted to see what you were hiding." She teased. But I was having none of it. I had had enough of cheating on Piper. I took away her lips from me and pushed her back so that she fell onto the toilet seat. She propelled herself forward and engaged in battle with me. "So this is how you like it?"

"No." I struggled back and pushed her away again but she grabbed the waistband of my underwear and so, as she fell to the ground with a firm thud (I dread to think what the others thought was happening because no doubt they were listening at the doorway), the trunks came down with her. I turned at once and placed my hands firmly on my privates. She looked up but saw nothing but my rear end. Her hands reached up and stroked it but by that time my trousers were half way up my legs. I could put the pants on later. "Look…we've finished the dare." She had seen my member beforehand, but not at close quarters nor alone.

"I didn't even get to see your co –"

I was about to say 'shove it up your arse' but thought that was exactly what she wanted. "I recommend you put some clothes on." Was the sentence I settled with.

"Did you not even like my knockers."

"I didn't look." I said.

"So Piper is the one, then?"

"She has a better set than yours." I whispered to myself. "Really – put on some clothes. And, please, give me back my pants."

"Oh – I'm keeping these!" she said, smiling, and pulled them on over her knickers. "As a memory of what almost happened. Love with the son of Zeus of all of them! It will happen sooner or later, Grace."

"We'll see about that, La Rue."

I turned my back as she pulled on her clothes (my hands fixed firmly on my trousers in case she tried to pull them down for another peek) and then we both went back into the room. There was a hurrying of footsteps as we moved to the doorway and, when we arrived inside, they were hastening to sit themselves down.

"Have a good time in there?" teased Percy.

"She gave you one, eh?" laughed Leo.

"Fuck off." I replied and grabbed some boxers to pull on behind a chair.

"Ooh ooh!" Katie grinned. "Enjoyed it, Clarisse?"

"Shut it." She replied.

But that was one point to me, Katie had said. So perhaps it was worth it – if they thought she'd done something in there. And I think kissing passionately in our underwear counted – even if I was trying to ignore what had happened.

Clarisse spun the bottle and it landed upon Leo. He chose dare.

"I dare you to…" and then she whispered something to Leo.

He nodded and then Leo offered me a sweet. I took it with suspicion, but nothing happened. "I'm going to the toilet."

"Not taking Clarisse with you, are you?" Conner joked. I slapped him in the face and then went back into the bathroom, having a sudden desire to go to the toilet. Perhaps that was the dare. I opened up and finished however, just as I had finished, the lock on the door clicked and I spun around to try and stop the door from opening when it swung wide open and there stood Leo and Clarisse underneath him, kneeling on the ground. My dangling privates were in her direct eyesight. I clapped my hands to the object of view immediately and then pulled up my boxers and went back into the room, glaring at Leo. After washing my hands, of course. I was fussy about hygiene.

Leo spun the bottle and saw that it took Conner into its grasp. He also took dare.

"Stand in the middle, starkers, and let us all draw you for ten minutes. Whoever draws you best gets to choose who you dare next."

"Oh, fine."

"And no covering up, either!" Clarisse added with a smirk.

The scoreboard read as follows: Percy was on fourteen, Jason on nine, Travis and Annabeth on seven, Piper and Valentina on six, and Conner, Katie, and Leo on five. I was slowly catching up to Percy.

AN: Thanks for reading & hope you enjoyed! If you did enjoy it, please do favourite, follow, and review to get the next chapter out quicker! See you for chapter 45 shortly!