The drive out to the jungle was pleasant enough. Juan Carlos' friend Javi kept up a colorful description through the bus intercom of what they were going to see once they descended into the cave, which was really a large cavern full of crystalline water and rock formations.

As Nick and Sara watched Ned across the aisle of the bus out of the corner of their eyes they noticed that he seemed relaxed and happy talking with Carla and it seemed that at least for the moment, Gina was a faint memory.

Nick leaned over and whispered in Sara's ear. "What do you think of her now?"

Sara smiled. "Ok, you were right. She's nice."

Nick chuckled softly. "So can you at least tell me what color you bikini is?"

"I can." She smirked, but didn't volunteer any further information.

Nick quirked an eyebrow at her. "And?"

Sara leaned towards him and whispered very softly in his ear. "I didn't say I would." She let out a giggle as Nick turned to face her with a raised eyebrow. "It's way more fun to torture you."

Nick leaned in and whispered in her ear. "You are an evil woman, Sara Sidle."

Sara giggled and then smirked at him. "But you love me."

Nick couldn't help but smile at the thought as he looked into her eyes. "Yes, I do." He leaned over and gave her a chaste kiss before lacing his fingers with hers and then leaning back in his seat to relax for the rest of the short bus ride.

As the group disembarked from the bus they listened to Javi instruct them regarding the descent into the cave and how they would be led through the cavern by a guide so that they wouldn't get disoriented or lost as they navigated through the stalactites and stalagmites under the water.

Once they were in the cavern, Sara was amazed at how much natural light was present and she was so entranced by the scenery that she didn't notice that Nick was staring at her with a dopey grin on his face until she'd begun to don her snorkeling gear. Sara felt her cheeks flush a little and then a grin spread across her face and she made no attempt to hide the fact that she was staring at Nick's well-muscled chest.

Nick stepped towards her and let out a low whistle before leaning towards her and whispering in her ear. "My dreams didn't do you justice because that is one hell of a bikini."

Sara pursed her lips together in an effort to keep her embarrassed smile from getting any bigger. "It's not exactly skimpy, Nick." In truth, her swimsuit was an athletic looking red two piece that was more functional than revealing, but it revealed enough to get Nick's imagination going.

"It's not the suit, it's you." Nick whispered back softly before leaning in and softly kissing her cheek.

Sara didn't have a chance to respond as Javi directed their attention towards the guide. As they listened to the man who identified himself as Marco, Sara felt a pair of hands coming to rest on her hips and an involuntary shiver ran through her body at the sensation of Nick's fingers against her bare flesh. She had a hard time concentrating on what Marco was saying as she felt Nick's thumbs caressing her sides. It wasn't until she heard Marco ask if anyone had any questions that she realized she'd barely heard a word he'd said. She stepped away from Nick and turned around to face him feeling a little flustered. "If I drown, it's your fault."

Nick looked at her a bit quizzically, not quite picking up on the effect that his simple touch was having on her. It finally dawned on him that he was the reason that she was in such a state and he let out a chuckle as a grin spread across his face. "I'm sorry, but I think you're irresistible." To emphasize his point, he slid his arms around her waist and softly kissed her before pulling back and looking into her eyes with an impish grin on his face. "Just follow me and you'll be fine." He gestured towards the water where the others were beginning to follow after Marco.

They pulled their masks down, put their snorkels in their mouths and slipped into the water and followed the others.

Sara didn't think she'd ever seen anything that looked so surreal, and while she was paying attention to the scenery in the cavern, Nick was paying more attention to Sara in her swimsuit. When the group finally emerged from the water some time later, Nick couldn't stop staring at Sara. He didn't think he'd ever seen a more sexy sight that a soaking wet Sara Sidle.

She glanced up and caught him looking and a smirk broke out on her face as she stepped out of her swim fins and walked over towards him. "Didn't your mother ever teach you not to stare?"

He had mischief dancing in his eyes as he regarded her. "She also told me that I should always admire beauty."

She was standing in front of him now and couldn't keep from grinning. "Did she now?"

Nick just nodded. "Yeah, she did."

Sara was giving some serious thought to kissing Nick for all she was worth because the image of him standing in front of her soaking wet was testing her self-restraint.

However, before either one of them could say or do anything else, Ned interrupted them. "Wasn't that absolutely amazing?" He looked like a kid in a candy store and if the way he was holding onto Carla's hand was any indication, Gina was nothing more than a faint memory at this point.

"Yeah." Sara had a wide smile on her face as she turned towards Ned. "I don't think I've ever seen anything quite like that."

"Uh, so I was going to see, actually, Carla and I wanted to know if you two would like to join us for dinner later. I hear that they're having live music and dancing in the plaza tonight and it might be kind of fun." Ned was clearly having a good time.

"That sounds like fun." Nick answered, slinging and arm over Sara's shoulders. "What do you say, Sar?"

"Sure." Sara couldn't help but smile and slide an arm around Nick's waist. "I'd love to." The idea of dancing with Nick was very appealing, and she had just the dress to wear in her suitcase.

"Ok, then." Carla interjected. "Do you want us to meet you there or at our hotel?"

"Why don't we just meet you there?" Nick suggested since Parque Benito Juarez wasn't that far from their hotel.

"It's a plan." Ned seemed very comfortable with Carla and in the back of Nick's mind he wondered if there was a little more to the story about their relationship than just the fact that they'd attended medical school together.

After they'd emerged from the cavern, Nick and Sara walked hand in hand towards the bus. Nick couldn't remember the last time he'd seen Sara this happy, and he was suddenly thankful that his buddy had backed out of this trip at the last minute. He was definitely going to have to thank him for that, and maybe he'd just have to throw in a season ticket package to something to emphasize the point.