WARNING: Chapter is NSFW, featuring tickling and urine.

NOTE: I may not publish quite as frequently during Nano, simply because I'll be focusing on original writing that month. Kite will also have a Nano project she's anxious about jumping into. But we're going to try not to let it completely lapse until December; this story is so close to done and we want to get it finished for sure before the end of the year. Hopefully you're still enjoying it!

CHAPTER THIRTY-ONE

Elsa waited as Anna looked up at her with her eyes wide and her mouth slightly slack. While it was far from the first time to offer at this point, the redhead still seemed to have a bit of trouble believing her when she did. Still, eventually Anna swallowed thickly and whispered, "You sure?"

"Yes," she breathed. Even though she was not at all sure… but touching Anna had not been nearly as frightening as she had first expected. Trying it again was at least something she was willing to do; if she failed… No. She didn't want to think about failure. Swallowing hard, she favoured Anna with a smile. "I want to try more of what we tried in the shower. At least… a little of it. Is that alright with you?"

Anna's eyes went dark with lust and she lay back fully on the bed, biting her lip in a seductive manner. "W-who am I to say no?"

"My sister, whom I respect," Elsa replied with a smirk as she reached down to caress Anna's hip and thigh. "If you tell me to stop… I'll definitely be stopping."

"Sounds fair." Her leg jumped slightly beneath her hand as the muscles responded to the stimulation. "I-I'll be sure to let you know."

Deep down, Elsa almost wanted Anna to tell her to stop. This was so difficult! On top of that, the lingering doubts about whether or not playing in such an adult fashion with her sister was wise. Despite their strong romantic feelings, they had crossed a line that they could never uncross. But she also wanted to see how much further they could take things. Granted, she wasn't sure there was anywhere else to go after all they had already tried! But still…

Halting her mind from whirling around in circles, she decided to start by caressing her hip more. To see how Anna responded. From the way Anna arched into the touch, head falling back against the bed and eyes fluttering closed, Elsa could guess that the touch was positive. Her breath came out in soft pants. So far, so good.

Then she decided to see what would happen if she slipped a hand down into the front of Anna's shorts. Anna mewled as her fingers grazed the crotch of her damp underwear. Biting her lip, she began to graze them from side to side, testing and teasing. Already, it was a very different feeling from the last time, when she had been bare and left open to explore fully, wet from the shower.

Somehow this felt… even more extreme, despite the layer of clothing between them. Was that strange? Anna whined and pushed slightly against her fingers, shuddering as the cotton barrier both created friction to the area and prevented Elsa's fingertips from going inside. All the actions were already making Elsa's heart race faster; were they really doing this? Again?

"Mmm," she breathed, hoping it would help Anna along as she felt the cloth begin to get a little more damp. She had to remind herself that it wasn't pee; that this was a natural result of those activities. Her inexperienced brain was just barely keeping from overloading, with all the new information it was taking in.

"Elsaaaa," Anna dragged her name out in pleasure. It sent chills down into her stomach. Licking her lips, she began to rub more, faster, and she found that thanks to trying this once before, she was already starting to figure out a rhythm that would work for the two of them. And work it did, if the slight increase in volume of Anna's voice and tightened grip were any indication.

"You like this?" she asked needlessly; it just seemed like the appropriate thing to be doing. "Do you… want more?"

"Yesss…" Anna gazed up at Elsa with adoring eyes, shuddering as her panties grew more and more wet and uncomfortable against her crotch. All Elsa could do was kiss her again, nuzzling close and trying to decide what more she wanted to try. Maybe what Anna had done for her before…

But maybe she could test that further before going all the way in. Licking her lips, she slid her hand up just enough to nip beneath the waistband and back down through the thicket of coppery hairs. Anna mewled at the feel of Elsa's hand touching her skin. She felt so wrong for doing it, and yet she knew she loved it. Knew that the more she could touch her, the better they would both feel.

A little "ooh" fell from her when she felt Anna's wetness. Anna bit her lip and squirmed slightly at the sensation, sighing heavily in pleasure. Trying to ignore her own body's responses, she glided her fingers up and down, collecting a bit of moisture before withdrawing her hand.

The redhead peered up at her, panting softly as the hand was moved away. She blinked like a disappointed puppy. "Y-you okay?"

But then Elsa brought the fingertips to her own lips, testing the flavour. It wasn't bad; knowing what it was made her sigh with pleasure, but the taste itself was only vaguely sickly-sweet. Something she could definitely handle. A quick glance at Anna revealed that her eyes were as wide as saucers, her mouth open slightly and her cheeks a very nice shade of red.

"Y-You just-" Anna whimpered, unable to finish. It was kind of cute, in a weird way.

"You're very sweet," Elsa told her with a flutter of her eyelashes, withdrawing the hand and petting along Anna's thigh again. Anna squeaked and turned even redder in response. Chuckling, she whispered, "I'm sorry if that's too much. I'm only being honest."

"It's not too much, I-I'm just surprised." Anna nibbled on her lip and gave Elsa a smile. "Y-You tasted me…"

Nodding, Elsa averted her eyes, not wanting to weather the reaction head-on. "Well, yes. I wanted to… see if I could handle doing what you did." Then she began to open the fly of Anna's shorts fully, a little at a time. Anna inhaled sharply.

"You… want to go down on me?" she breathed. "Are you sure?"

"No," Elsa admitted with a half-smile. "But I'm sure I want to try it out. If that's alright with my Moondrop."

"Only if my Snowflake is okay with it," Anna answered seriously, reaching up to cup Elsa's cheek with her palm and caress the skin with her thumb. "I'm willing to try whatever you are, Elsa."

She leaned forward and gave the winter blonde a soft kiss on the lips. Elsa kissed back enthusiastically for a few seconds, then just barely started to squirm her hand past Anna's hip to begin sliding off shorts and panties alike. Anna tangled her hands in Elsa's hair, drawing her head closer to deepen the kiss while arching her back to aid in getting the clothing off. Finally, Elsa had to break away to pry off the clothes entirely, flicking Anna's ballet flats off as they did so.

"T-That tickled!" Elsa grinned and poked a single fingertip into the center of her sole; it jerked and the redhead laughed a little louder, "Stop that, you stinker!"

Laughing along with her, Elsa kissed Anna's shin as she began to head upward again. "Sorry, but I couldn't resist. You got to do a lot more tickling than I did, remember?"

The redhead tilted her head, still giggling but looking curious as Elsa continued to kiss up her leg. She playfully poked the blonde's chin with the other foot. "Having fun down there?"

At that, Elsa glanced down and then up again. "Well, I was going to head back up there, but now that you mention it…" Her teeth flashed out to just barely graze Anna's ankle and Anna gasped lightly, her foot twitching at the barely restrained urge to kick. "Do you want me to have fun up there, or down here?"

Anna thought about it before letting out a slow breath. "T-Try going from the bottom up?" she suggested softly. "S-slowly."

"Hmm, really?" Elsa had to admit, she was a little surprised. A half-smile pulled at her lips. "Do you… want me to tickle you, Anna?" Anna blushed and nodded, and Elsa burst out in shock, "Really?! Um… alright, uh… well, do you think you'll… react the way I normally do?"

"We'll just have to see, won't we?" Anna leaned back and stretched out so that she was as exposed as possible. "I've… never tried this before so…"

Chuckling herself, a little in disbelief, Elsa positioned herself a little lower, so that if Anna started kicking she wouldn't end up with a bloodied nose. "You think I've tried sexy tickling before you came along?!" Then she blinked. "Even just saying 'sexy tickling' makes me feel weird and perverted."

Anna laughed and looked more relaxed. "And we were both surprised by the result!" she pointed out. "So we'll see what happens with me. If I can't handle it, I'll let you know."

"Okay," she laughed. How was one supposed to start this kind of thing? Shrugging, both to herself and to Anna, she grabbed one of Anna's ankles. The foot twitched slightly in her grip. Then, after a second or two, she scratched her fingernails very lightly over the vulnerable sole — just once. Anna shivered from the sensation and gave Elsa a soft giggle.

The redhead than gave her sister a reassuring grin. "That definitely tickles." To follow up, she tickled her a little more, grinning like a little girl who found the stash of Easter candy a week early. Anna's giggles increased and her toes flexed in reflex.

The two thoughts sparked a memory within Elsa's mind. Easter candy and giggles, flexing toes… "Hey, Anna."

"Yeah?" Anna lifted her head to blink at her sister curiously. But that was all Elsa said before attacking just beneath the tips of Anna's toes with her lips, nibbling furiously and making Cookie Monster-ish gobbling noises. The combination of Elsa's soft lips, gently nipping teeth and the ridiculous noises sent Anna into a fit of laughter, her arms hugging her stomach.

"O-Oh my god E-E-Elsa!"

This time, Elsa didn't let up right away, only pausing briefly to grin up at her before attacking anew, hands only holding the ankle still so that she wouldn't get kicked by Anna's flailing limb. Anna's laughs grew louder. Finally, when she could tell Anna was almost crying with laughter, she pulled back with a chuckle of her own.

"You remember?" she asked breathlessly, crawling up to flop down next to her. Anna was panting heavily and her eyes were wet but the grin on her face never left.

"R-Remember?" she asked. "You did that before?"

"Not me," Elsa giggled as she poked Anna's side briefly; trying to tease, not to truly tickle this time. "Dad. When we were really little? He loved winding you up like that because you would giggle and turn beet red. It was pretty adorable."

"Oh yeah!" Anna lit up and let out another laugh. "I used to hate it when he did that!"

A little startled, Elsa drew back another few inches. "O-oh? Oh, I'm so sorry, I didn't mean to…" But Anna cut her off by leaning forward and capturing her lips with hers. The kiss was brief, only a little more than a peck, and when Anna pulled back, she was smiling adoringly.

"Don't be, I like it when you do it."

"Really?" Another peck, and Elsa found herself smiling in relief. For a brief moment, she had been worried that Anna was upset by revisiting the activity she had once hated. Then she laughed a little. "You know, you're basically kissing your own foot right now."

"That would be awfully prissy of me to only refuse you my mouth because of that." Anna giggled and shook her head. "Besides, it's not like it tastes that terrible, otherwise Dad wouldn't have kept doing it."

Reaching over to pet over Anna's knee, she grinned up at her. "Agreed. Though I think Dad only did it because he liked seeing us smile, regardless." Then she tilted her head to one side. "Want more tickles? I'm pretty surprised you don't mind it."

"We're having fun, aren't we? Of course I don't mind." Anna wrapped her arms around Elsa's neck and nuzzled her face against hers. Elsa nuzzled back, petting her hand up and down Anna's hip a few times. Then she raised the hand higher and began to wriggle her fingers against her ribcage. Anna jerked at the unexpected action, letting out a surprised squeak and a giggle. "Hey! A little warning next time!"

"Isn't that kind of the point of tickling? The surprise?" Elsa giggled as she kissed Anna's cheek, still tickling a bit here and there. Anna giggled more, giving Elsa a playful look as she returned the gesture by starting to tickle Elsa's skin herself. "H-hey, I thought this was supposed to be me tickling you!"

"I can't help it, you're so adorable when you're writhing beneath me, trying to catch your breath." Anna grinned at her double meaning, and Elsa flushed a deep red.

"O-oh, really? Well… I don't mind it, either." So she attacked her thighs this time, laughing in wicked glee as much as she was blushing. Anna let out a loud squeal and dissolved into a fit of laughter as the sensitive skin was ruthlessly assaulted. This time, she didn't let up at all; only sat back a little and redoubled her efforts, wondering how far Anna would let things go. How far they would go with it together. Anna flexed beneath her fingers, the muscles quivering. Tears are once again pooling in her eyes.

"E-Els-!" she mewled. So Elsa moved down to bite at that sensitive thigh-flesh instead, moving her hands up to Anna's knee to tickle just as much there. Anna let out a cross between a laugh and a moan, her legs twitching as though caught between opening wider and clamping shut, "T-T-Too much!"

Grinning, Elsa let up with her mouth enough to gasp out, "Want me to stop? Or is it… just the knee?"

"J-Just the knee." Anna whimpered. That was easy enough to fix. Smiling up at her, Elsa began to nibble on her thigh a little more, fingers digging into the opposite one. Anna's eyes squeezed shut as she cackled, the sensory overload making her tremble at Elsa's every move.

And then there was… the tempting wetness nearby. Elsa saw it, she sensed its closeness, but she still wasn't sure if she was ready to try that yet. Also, would Anna want to be tickled more? The way she said "Just the knee" made it seem like she was actually enjoying this enough to keep going! Were they both crazy?!

The redhead's whimpers increased and she looked at Elsa pleadingly. "E-Elsa..." she gasped out. There was a choice for her to make: down to tickle her toes again, or up further? Up toward…

The soft little folds looked so wet. That was when the elder sister decided that she would see what happened when she moved higher. Still digging in with her hands, she began to glide her mouth up toward that wetness. To find out what it would be like to truly taste her. Anna jerked slightly, gripping the blanket tightly in her unfiltered bliss. Her teeth began to gnaw very gently at the flesh just between thigh and center, fingertips still gouging into her inner thighs without stopping…

Anna let out a loud cry as she unexpectedly burst, throwing her head back… however…

She did burst. Elsa felt silly for being shocked when the warm liquid splashed across her face, for gasping aloud; she should have expected it. After all, that was exactly what happened when Anna did it to her, wasn't it? Though Anna lasted a lot longer before it happened than she had.

"O-oh," she belatedly breathed a few seconds later, blinking and stunned. Anna was beet red and looked horrified at what she did. She tried to clench her legs shut but Elsa was still between them. Instead, the redhead covered her face with her hands and let out a low moan of embarrassment.

"Oh my GOD, Elsa! I'm so sorry!"

Meanwhile, Elsa was having a hard time choosing between more reactions than she normally had open to her. She wanted to be disgusted, and angry, and apologetic for pushing Anna too far, and resigned to simply going to wash off. And buried under all of that…

She was turned on. Not quite by Anna peeing on her, though those feelings were complex. More that they had been so close and shared something so intimate that it wound up happening. Oddly humiliating as it was, she didn't mind nearly as much as she felt was socially expected.

The silence seemed to wear on Anna, who bit her lip hard and whispered, "E-Elsa? Are you mad at me?"

"No, no!" she gasped, smiling awkwardly as she petted along Anna's thigh. "It's… I am surprised; I shouldn't be but I am. Honestly, I should have been expecting that." Then she kissed Anna's knee. "Are you alright?"

"Y-Yeah… I honestly thought I was coming, though." Anna blushed harder. "N-Not the other thing."

"It's alright," she assured her again, smiling. "I'm going to go wash this off; want to come with me, or do you need a minute?"

"J-Just give me a sec." Anna smiled back, leaning back against the pillows and taking several deep breaths. "C-Can you bring me a towel, please?"

Nodding, Elsa got up and dashed to the bathroom, quickly rinsing off her face. She tried not to think too much about what she was rinsing off, and any implications; it wasn't that big of a deal, all things considered. She'd come into contact with much worse when they were cleaning the bathrooms. Besides, this was her sister, and she would rather feel slightly nasty due to her than with anyone else. And if she got upset about being peed on, it really would make her a hypocrite, wouldn't it? Not after that time in the bathtub.

Soon afterward, she padded back into the room and smiled at Anna, holding up the towel she had just finished using to dry her own face off. "Here."

Anna took the towel with a shy grin and lowered it so that she could dry her lower half, wiping her legs and carefully blotting the towel to soak up the little bit that had managed to get on the bed. Elsa felt guilty that she did this to her, but at the same time, Anna had done it for her before and she knew that it wasn't so bad.

"O-okay," she finally whispered, taking the towel back and tossing it toward the bathroom. "Sorry. I should have quit while we were ahead, I guess."

"It's okay," Anna chuckled. "Now I understand why you like it so much."

Nodding, she laid down next to Anna and began stroking her thigh — definitely without tickling this time. "It's different than actually… doing things. The way you did them for me. Fun, but… maybe we're both weird from genetics and we like being tickled way too much. I don't know."

"If it's genetic, then maybe Mom has this weird tickle-fetish, too," Anna joked and snuggled against Elsa. hugging her sister around the middle. Elsa sighed as she began to kiss Anna's cheek, fully intending to start up again.

"Our mother? I think her only fetish is going to church."

"Sometimes it's the uptight ones with the weirdest kinks!" Anna giggled as Elsa kissed her, pressing closer. But Elsa winced and glared down at Anna. Did she have to put a mental image like that in her head? Anna simply grinned back teasingly. "Sorry, sis, didn't mind to weird you out."

Patting the inside of Anna's naked thigh, she settled in as she muttered, "We're already weird enough as it is." Then she smiled. She couldn't help it; even though it was bizarre, their situation, what they were doing with each other… it was still wonderful in so many ways. "But… I'll get used to it."

Anna gave her a loving look before placing a soft kiss on her lips, sighing in pleasure at the warm hand settled on her thigh. "I love you," she murmured.

"Love you, too." Then she settled in, kissing back for a few seconds. Should she ask? Might as well. "Did… we want to try again, without the tickling? Or is one 'release' enough for the night?"

"I think I'm done for tonight. I'd rather just cuddle… unless you want me to get you off?" Shaking her head, Elsa snuggled in closer, glad for Anna's nearness. Anna held her closer, tangling her bare legs with Elsa's and nuzzling her face into her neck.

"This is perfect," she whispered into Anna's coppery hair. "Just… this right here." And she meant it more than the words could convey.

To Be Continued…