After a few moments, Jack stopped and turned to face Will.
"Well, here we are lad! The gorgeous bay on this gorgeous island! And now, we swim!" With that he began to undress, first pulling his loose shirt up over his head. Will swallowed hard, trying not to stare at the tan body and slim outline of Jack Sparrow. Evidently, Will thought, it's not as dark as it seemed to be... In fact, it had just been an exceptionally dark cloud, and the sun was just now beginning to crawl down to the horizon. There was light enough that Will could see every detail of the other man's chest. Jack threw his shirt unceremoniously onto the beach, and began untying the slim trousers. Will's bulge returned and he just stared...he had not thought about this.
"That's completely unnecessary, Jack...I thought we'd just swim like this...It, er, just is more comfortable..." Will gulped, trying to calm his nerves. Jack stopped untying.
"Nonsense, luv! One, I need me pants dry, lest I have no clothes. And two, the breeze and water are good for me privvies...keep everything aired out, if y'know what I mean, lad..." Jack grinned hugely. He continued with the process of untying until his pants were loose, and then quickly pulled them down and off. Their shoes were back at the other part of the beach, completely unnecessary for island life. Now, Jack, standing completely nude, looked back up at Will, expectingly. Will took his shirt from his waist and dropped it to the ground.
"Come on, lad...yeh've got to relax, me boy!..." Jack walked towards Will, while Will stood stock still, thinking that his death must be near. Jack stopped when he was standing right in front of Will, and moved his hands to Will's laces. Will could feel his breath on his face as he spoke, "C'mon now lad, let's go for a swim..." Jack untied the laces rapidly, not giving Will time to realize what was happening. Once the pants were loose, he moved his hands rapidly to the man's hips and pushed roughly down. Will was horrorstruck.
"Aaahhhh...so we're not a eunuch after all, eh?" Jack laughed, his eyes gleaming. "Come on, luv...a good swim will have that down in no time..." Jack pulled on Will's arm, and Will obligingly stepped his feet out of his pants and followed Jack to the water. Jack had his fingers interlaced with Will's, enforcing a strong pull that brought them into the water.
"You're a tiger, lad! You've been stranded less than a day, and already, you're thinking about Elizabeth!" Jack smiled amusedly at this thought and let go of Will's hand. He had a sudden change of interest, which Will was thankful for, "What a gorgeous day it is, lad, what a fine day t'is. And I believe that I managed to save some rum from your dear Elizabeth's scourge of it, so we have that to enjoy later on...fine rum too, quite strong."
The two were now in navel-deep water, swimming and talking, and Will felt himself relax. Maybe he could control his desire for Jack and make it through until they were rescued...maybe he could do it. Then, Jack's voice pierced his thoughts.
"Let's have a race, lad! Out to the reef and back! Whichever man returns first gets more rum!...Off we go!" Jack had a huge lead by the time Will realized what was going on. He plunged into the warm water and swam hard to catch up. After a minute of this, he thought of something better...Something that would make him quite possibly the happiest man on Earth.