After some consideration...

Samantha was really mystified by this whole situation, and Tiffany's attitude this whole day went from typical to bizarre. Yet, Samantha kept wondering if there wasn't more to this shift in mindset. 'Tiffany never showed softness like this, she's never expressed any desires about nudity or...whatever being a petgirl is...is this actually really happening?' Samantha almost wanted to blame the ****, but even if she had drank that much, the fun affects had worn off quite thoroughly by now.

She stared at the leash for several seconds, nearly a minute by Tiffany's estimation, and said nothing. Tiffany was starting to get worried. Not only was Samantha's decision taking a while to proceed, this idea was far removed from her plan. Her imagination was running in the back of her mind, her more confident self screaming at her to stop this, while the smug Samantha stood and watched. Nevertheless, Tiffany held her hand firmly, or as firmly as she could. As much as she wanted to project an air of assuredness, her hand wavered slightly. It wasn't because she was nervous, albeit she was; rather, it was because the feelings of arousal were rocking her again.

'I don't know if this is because I'm submitting myself to Samantha or what, but....ugh, I...I really shouldn't have skipped that orgasm...' Not only did it take Tiffany a lot of mental energy to keep her hand up, it was starting to take physical energy, and her mind was begging her to use that physical energy on a different hand motion.

Tiffany was about to internally yell at herself, when Samantha finally spoke.

"I'm not sure I understand what's going on here, Tiffany. I...don't know if I want to, either, but I think I realize now how badly you want this." Tiffany was slow to confirm, but she did indeed nod. "I guess...we don't really have a choice, so if it helps make this easier for you, so be it. You can be my petgirl."

All at once, Tiffany could feel absolute victory and crushing defeat smashing against her. 'Samantha agreed! This will make our dreams come true! But...what if it doesn't? What if we've cursed ourselves into the life we deemed fit for her?'

"Is that really so bad?" The confident fake Samantha leaned against the real, demure Samantha. "Your dream was to get a petgirl. I think, maybe, we compromise that, don't you?"

Tiffany wanted to yell and scream at her imagination, but was more sensible than to challenge that in a public way. All that mattered now was Samantha taking the leash, and after a few moments, she gave in, slowly reaching...and took it from Tiffany. Both girls knew what this meant.

"I'm...sorry if I'm not the, ahem, master, you want, Tiffany. But, on the bright side...you can trust me to treat you right." Tiffany nodded. She intended to be all fake smiles and enthusiasm, but she didn't have to it; it was all genuine.

The girls, satisfied, or at least determined to live out the result, marched off, heading back the way they came. For the most part, the return trip was uneventful. The girls stayed quiet, and while Tiffany was actually quite happy and pleased with the direction of their situation, Samantha was far from it. There was guilt to be sure, and obviously confusion, but the main thought crossing her mind now was Tiffany's acceptance of the role. Tiffany had anger issues, Samantha felt them firsthand, but now she was happy. Was she faking them? Samantha couldn't tell, and it made her uncomfortable. 'If she isn't, and these feelings are genuine, are they...just a kink she wants help with? Or...is it specifically me? Did...she always plan to be my petgirl?'

It didn't help that Samantha herself couldn't decide how she felt about the kink. She couldn't imagine enjoying it, and yet...maybe if she had gone on a crazy adventure like this...

"Sister! Focus." Samantha's curious mind was dashed by her naked petgirl sister. "We're at the log again, let's do this right."

Tiffany had been sitting patiently for a few seconds, but she just wanted to get back to the room. 'I don't think she's going to consider being my petgirl now, not with all of today's events distracting here.' Tiffany's plan would be better formulated in the comfort of their room.

As for the comfort now, it was less than stellar. Samantha, ever the loyal sister, held the log steady, allowing Tiffany to cross much more easily this time. A part of her wondered what she would do, or what Samantha would do, if they fell in the river, but that was a question for some alternate reality to answer. For Tiffany, all that mattered now was how to handle Samantha crossing the log. She COULD dump her in the river, blame it on her injured hand or just being tired in general...but it was strain the trust between sisters a great deal.

It would also ruin Samantha's clothes, which might give Tiffany that dream of a naked sister a real form. It was a choice no mortal could resist.

Tiffany's willpower was incredibly weak at this point. Had she orgasmed at least once today, she would do the smart thing and let her sister cross safely. After all, a building of honor would grant Tiffany a better chance at convincing Samantha to embrace the joys of being a petgirl. But she was too turned on to think straight, and by instinct, turned the log as Samantha was halfway across.

The look of shock on Samantha's face was instantaneous, but it felt like slow motion to Tiffany. She almost delighted in it, watching her sister go from dry and stoic, to horrified and wet. With a massive splash, Samantha was submerged.

Tiffany watched as her sister struggled, pleased at first, but very quickly regret set in. And as she saw a wet, angry Samantha emerge, regret was joined by fear.

"Did you do that on purpose?"

"Wh-wha-"

"Did you? Why would you do that?"

Tiffany never expected to see Samantha so mad, she didn't even know it was possible. "Why would you DO that?"

"I..." Tiffany was stunned to have the tables turned so drastically.

Samantha, to her credit, managed to calm down, and tried to squeeze the water from her shirt. "Great...I can't believe this."

Tiffany had a weird urge to both apologize and yell at her sister, blame her and claim she was enacting ****, but a part of her mind caught her in time. 'If you do this, the petgirl dream is over.'

Despite all the fluster and bother Tiffany was suffering with, she had been overcome with reality. In one brief instance, she may have nearly ruined everything she had been building to. Years of work, wasted, because she made one wrong choice. 'I...need to rectify this...somehow.'

Samantha finally seemed satisfied with her dried state, looked to her sister, and merely said, "Let's go."

Tiffany would spend the next several minutes thinking of options. And luckily, Samantha decided to still do right by Tiffany, keeping a lookout and directing her when it was safe to cross to the hotel. There were people inside the lobby this time, so Samantha directed them to wait in the side bushes until it was clear to proceed. That took a while, but that gave Tiffany more time to think.

When it was safe, they quickly hurried to the elevator, rode to their floor, and managed to safely cross the hallways to their room. Once inside, Samantha kept her back to Tiffany. "I'm taking a shower, you can go next."

Tiffany nodded. She wanted to say something, but she still wasn't sure what. Samantha showered briefly, and gave it over to Tiffany. A part of Tiffany thought now would the perfect time to orgasm, but...she wasn't feeling it. Another orgasm was lost yet again. "That's fine, as long as I can come up with a solution."

But as she finished showering, she couldn't. Any idea she had merely amounted to horny ramblings. She did briefly consider the truth, but she knew that would only bury her further. She sighed, and left the shower, standing as a person.

Samantha was sitting on the bed, wrapped in blankets, and looked surprised. "You're not doing the petgirl thing?"

"I...guess...not right now." Tiffany thought about commenting on Samantha's bare shoulders, and the clothes hanging on the kitchen chairs, but wisely kept quiet.

"Probably just as well." Tiffany hoped Samantha would say something, anything else, so that maybe she could get triggered into a solution that way. Samantha looked at Tiffany. "Honestly, I...don't think this petgirl thing is a good idea."

"I...see..."

Tiffany was going to drop it, at least for now...but Samantha kept going. "Like...I guess thinking about it, there are a lot thrills involved. And, I guess if you could get away with it without getting trouble, then you wouldn't risk being punished for life if you were caught."

"Um..." Tiffany lingered. 'Is...is Samantha talking herself back into it?'

"I was trying to juggle the various laws I've studied in my head, and...maybe it IS legal nowadays, just...not accepted. When um...when I looked up nudist stuff on the plane, it seemed like laws were finally catching up, and giving them their freedom to expression back. I...never really thought about how much that kind of thing gets denied to some people."

Tiffany just nodded, she was realizing that, for the first time, it would be a good idea to let Samantha lead the conversation.

"I don't know if kinks can be viewed the same way. At least...I don't know if I'm comfortable enough with that, but...maybe I should be? Maybe we both need to be better at accepting each other, and our personal interests?"

"Y-yeah..." Tiffany sat next to her on the bed.

"So...look um...I'm still mad, and...I'm not really sure if I can trust our history, but...I want to trust our future. Can I?"

Tiffany had a worried look on her face the entire conversation, worried that Samantha was going somewhere that would ruin, not just the plan, but their bond, and perhaps even Tiffany herself. But now, she could let it melt into something warmer, something more positive. "Yes."

Samantha went to hug her sister, and Tiffany joined in. Tiffany hadn't hugged anyone genuinely in years, so to do so now felt...strange. It didn't help that she was reminded that, under this blanket, Samantha was also naked.

Wisely, Tiffany said nothing, even though she felt so much. Ending the embrace, Samantha looked firmly into her sister's eyes. "You need to promise me I can trust you, okay? I know I didn't help with this situation, but do not punish me like that again, okay?"

"Okay, sis, I promise." Regardless of what the reasoning was, Tiffany decided she'd showcase that trust more firmly now. Even if it was just for the plan, it mattered to maintain trust.

"Good...now, to the discussion of, ahem...sleeping arrangements." Tiffany's eyes grew, but she kept quiet. "Um...apparently they only gave us the one blanket, and with the clothes...soggy, I need some cover. I know that's not really fair, but..."

She fizzled out on the conversation, hoping Tiffany would pick it up. A part of Tiffany wanted to throw it in her face, but she decided to be reasonable. "Well, I guess that's fair. Honestly, I never really liked sleeping with blankets."

"Really?" Samantha raised an eyebrow, not believing her.

"It's true! I know it's kind of strange, but I like the feeling of a fan on me. If it's cold, then I'll pull something up, but in a place like Cancun, I'll be fine."

"Well...okay, I'm glad that settles that part. But, um-"

"And...I'll take the pet bed, too." Samantha looked at her with major doubt, but Tiffany managed to reassure her. "Honestly, it's comfy, and it's either that or...laying right next to each other." Indeed, the bed was small, good for a cuddling couple, but not for two people who needed some space. Tiffany also thought about sleeping on the edge of the bed, but she realized she was on a roll with repairing the relationship.

Samantha gave in, and nodded. "Alright, well...in that case, good night, and...hopefully tomorrow will be better."

As Tiffany crawled down and into her pet bed, she closed her eyes and grinned. "It will be, dear sister. It will be."