Aiko's Explorations by Imouto Kitten

Chapter 4: A Desperate Wrestler

Feeling herself dangerously close to the edge and not wanting to risk 
Mutsumi reacting badly to recieving a golden shower, Aiko drops the toy 
she was using to tease the wrestler and bolts upright, the toy in her 
passage coming free in the brunette's grip. Dashing for the case of 
toys, Aiko grabs a urethral plug, and squeezing the squishy outer layer, 
quickly finds her peehole with the rounded tip and pushes inward just in 
time to dam her golden river as the first spurt gushes out around the 
plug.

As the plug swells to seal her urethra and her panic subsides, Aiko lets 
out a sigh of relief and mumbles, "Barely made it." before marveling at 
the curious sensation of being able to relax her pelvic floor while 
having a full bladder without pissing herself in the process.

Caressing the grapefruit sized bulge of her bladder, Aiko turns to 
Mutsumi and says, "Looks like I got the spiked drink. I just about gave 
ya a shower of pee." Grabbing a 2-liter bottle of clear fluid from the 
toy case, Aiko adds, "But I don't think its fair if I'm the only one 
plugged up with a bloated bladder."

Approaching the girl laying on her futon, Aiko kneels between Mutsumi's 
thighs before pulling off the last of the wrestler's clothing, prompting 
her to try and cover her crotch as her cheeks burn in embarrassment. 
Pulling the brunette's hands away, Aiko dons rubber gloves and uses a 
sanitation wipe to clean the wrestler's girlhood.

Covering her face in embarrassment, Mutsumi can't help peeking through 
her fingers as Aiko rips open the bag containing the catheter attached 
to the bottle's neck and starts to thread the thin tube up the 
brunette's urethra. As Aiko opens the valve in the neck of the bottle, 
letting the clear liquid flow with gravity, valves along the catheter 
ensuring liquid can only flow into the wrestler's bladder and not out, 
Mutsumi's expression shifts from one of embarrassment to one of being 
weirded out.

When the pressure in Mutsumi's bladder balances out the pressure due to 
gravity, Aiko starts to rhythmically squeeze a bulb pump just under the 
neck of the bottle. Before long, Aiko can see Mutsumi's flat, trim tummy 
starting to bulge out, and as the blunette watches the bulge grow, the 
brunette squirms and moans from the sensation of having her bladder 
filled from the outside, but makes no attempt to stop Aiko's 
ministrations. When the brunette's bladder bulge reaches the same size 
of the blunette's Aiko is surprised by how easily she continues to pump 
fluid into her victim's tinkle tank, making her wonder if the liquid has 
magical properties that allow the bladder to stretch beyond its usual 
limits.

Once the bottle is finally empty, Mutsumi's bladder has swollen to the 
size of a cantaloupe, and as Aiko prepares a second plug, she instructs, 
"I'll need ya to clench up if ya don't want to make a mess." and seeing 
several of the wrestler's muscles tensing up, Aiko quickly pulls out the 
catheter to replace it with the plug.

Halfway sitting up and clutching her bloated bladder like a expectant 
preteen mother caressing her baby bump, Mutsumi comments, "I didn't 
think I could hold anywhere near this much! I feel like my bladder might 
burst like a balloon at any moment!"

Looking at her handiwork, Aiko wonders what to do to her plaything next.

Smiling evily, Aiko stands as she says, "I'll be right back." When she 
returns, she's holding not one, but two large, liter bottles of water. 
Popping the top off one and offering the other to Mutsumi, she comments, 
"I'm sure I don't need to lecture ya on the importance of staying 
hydrated." Before bringing the bottle to her lips and guzzling the 
liquid. The action makes Aiko's protruding piddle pot pound powerfully, 
but just watching is agony for Mutsumi's truly titanic, tremendously 
taut, terribly trembling, thaumaturgically tormented tinkle tank.

Grabbing at her crotch, Mutsumi whines, "Aren't I full enough!?"

Swallowing the last drops, Aiko replies, "Would ya rather I yank out 
that plug and make ya hold back that ocean all on yer own?"

Though proud of her strength, Mutsumi seems convinced she'll wet as soon 
as the plug is pulled, and taking the offered bottle, opens it and 
starts drinking at a more sedate pace.

As Mutsumi slowly drains her water bottle, Aiko retrieves a few items 
from the toy case. Keeping most of what she retrieves from the 
brunette's view, the blunette makes a show of sliding a slender buttplug 
with an attached air pump up her anus before handing a small remote to 
the wrestler.

"That controls the size of the plug I just inserted." explains Aiko at 
Mutsumi's confused expression. Wasting no time, the brunette uses the 
remote to activate the pump, and Aiko soon finds herself with a 
grapefruit sized balloon in her rectum. It's a bit uncomfortable, but 
the blunette has the perfect idea how to get back at her playmate.

Coming up behind the wrestler, Aiko pours a generous amount of the 
strawberry lube in her palms before starting to massage the brunette's 
shoulders. The possibly magical aphrodisiac goes to work immediately, 
Mutsumi moaning and squirming under Aiko's ministrations as if the 
wrestler's shoulders were suddenly as sensitive as her pussy.

When Aiko lifts her hands from the wrestler's shoulders, Mutsumi whines 
at the loss of contact, only to resume her lusty reactions as the 
blunette starts to work the brunette's biceps.

Once she's worked her way to Mutsumi's hands, Aiko cups the brunette's 
budding breasts and pinches her nipples, getting a scream of, "YES! 
Pinch my nipples harder!" For her efforts, but instead of giving into 
the wrestler's demands, the runner glides her hands down to rest on her 
playmate's prodigiously protruding, powerfully pounding, pleading to pop 
piddle pot, pints of potent, pent-up pee pulsing beneath Aiko's probing 
fingers. At first, Aiko is gentle, like an expectant father rubbing his 
wife's baby bump, but as Soon as Mutsumi is fully relaxed against Aiko's 
chest, the blunette presses her palms firmly into the brunette's 
bloated, bursting bladder bulge even as the act causes the wrestler's 
butt to press against the blunette's own overfilled bladder.

Aiko pushes her playmate forward to relieve the pressure on her own 
plugged up pool of pee, Mutsumi landing sprawled face down with most of 
her weight on her distended bladder, an act that would have resulted in 
catastrophic failure if not for the urethral plug in the wrestler's 
peehole. Not giving Mutsumi a chance to recover, Aiko slides a lubed 
finger in Mutsumi's pussy, the tight passage turning out to be so slick 
there would've been no resistence even without the lube. Glancing down 
to see the saucer sized puddle of girl juice where Mutsumi was sitting 
just moments earlier, Aiko comments, "If ya weren't plugged up, I'd 
accuse ya of pissing yerself on my bed, yer dripping so much pussy 
juice!"

Panting like a bitch in heat, Mutsumi replies, "Please, Ai-chan, I don't 
care what you use, just hurry up and fuck my pussy with something!" 
Withdrawing her finger, Aiko grabs a egg vibrator and a roll of medical 
tape, and turning the vibrator to speed five of ten, traces it along 
Mutsumi's slit, ignoring the wresler's various pleas to put it inside.

Wanting to continue massaging the lube into Mutsumi's untreated skin, 
Aiko crosses two strips of the tape over the brunette's opening to 
prevent the vibrator from entering her before using a further two strips 
to secure the vibrator.

Aiko makes quick work of massaging Mutsumi's legs and back before 
deciding to focus on the wresler's rump. By now, the lube has turned 
Mutsumi's entire body into one massive erogenous zone and filled the 
room with a sweet scent of strawberries just this side of sickening.

After massaging the brunette's butt for several minutes, Aiko slides her 
thumb through Mutsumi's anal sphincter, coating the usually dry hole 
with the lube. Discarding her gloves, Aiko grabs the six centimeter 
dildo and pours lube directly from the bottle on to the phallus before 
using her hands to ensure the toy is well coated.

When she feels the tip of the thick, artificial prick probing at her 
back door, Mutsumi lets out a frightened protest, "Ai-Ai-chan, 
that-that's much too thick to go up my butt!"

"It's no thicker than what ya inflated the plug in my butt to." replies 
Aiko before mercilessly thrusting the dildo deep in Matsumi's rear 
passage, a squeal escaping the wresler's throat as her sphincter is 
suddenly stretched just short of being painful. Turning the dildo up to 
the same speed as the egg vibrator, Aiko enjoys the sounds Mutsumi makes 
as she starts to fuck the brunette's ass and wonders what to do next.

After a few minutes of pleasant torture, Aiko thrusts the dildo deep in 
Mutsumi's ass, leaving just enough sticking out to get a good grip to 
pull it out as she asks, "Would ya like me to stick a dildo up yer pussy 
as well, Mutsumi-chan?"

"YES!!!" screams the wrestler, desperate to experience the orgasm that 
feels so close yet so far away.

Her evil smile widening, Aiko reaches for Mutsumi's crotch as she says, 
"Then, I'm gonna pull yer plug and give ya a couple of challenges, 
and..."

"NO! I'll pee if you pull it out!" shouts the brunette, cutting off the 
blunette.

"What's tha matter? Is little miss can out wrestle every girl in class 
and most of tha boys afraid of losin' to a little piss?"

Her pride prickles at the taunt, but Mutsumi tries to resist the 
goading, "No, but..."

"Well then, ya can take my challenge, or I can leave ya like that while 
I watch ya writhe in desperate need of both a piss and a cum."

"Okay, I'll do IT!" cries the prone girl.

Aiko decides to show a bit of mercy, Helping Mutsumi into a squating 
position before placing a glass under her. Thanks to the rather extreme 
size of Mutsumi's bladder bulge, she looks more like she's preparing to 
give birth than for a holding challenge.

Pressing one hand to the wrestler's bloated belly and reaching the other 
to grip the urethral plug, Aiko instructs, "Once I pull it out, I want 
ya to hold for at least ten seconds and then yer to fill the glass at 
least halfway without it overflowing."

Seeming uncharacteristically nervous at the prospect, Mutsumi visibly 
tenses her every muscle, her toned arms and legs looking tauter than a 
rubber band on the verge of snapping as she replies shakily, "O-Okay, 
I-I'm ready!"

Aiko isn't convinced even her playmate believes her words, but doesn't 
hesitate to pull the plug and is actually a bit disappointed when the 
plug isn't immediately followed by pee gushing like Nachi Falls. In 
fact, as each agonizing second ticks by, Mutsumi not only reaches the 10 
second mark, but the 15 second and even 20 second marks, making it 
impossible for Aiko to claim the wrestler failed by a split second.

In fact, Mutsumi actually has trouble relaxing for the second half of 
the challenge, pee barely trickling at the start, even Aiko impressed by 
the apparent strength of Mutsumi's muscles. However, once the stream 
gets started, the ocean rips the floodgates completely asunder and pee 
gushes forth as though Susanoo had unleashed his wrath.

Aiko announces, "That's half full."

Clutching her prodigiously protruding piddle pot, Mutsumi cries, "I 
can't stop IT!" As she futilely tries to halt the torrent jetting from 
her urethra. The glass is soon overflowing and Aiko can see the 
wrestler's bladder deflating as a pubble spreads out beneath the 
brunette faster than it can soak into the Tatami.

By the time Mutsumi finally regains control, the puddle is more than a 
meter in diameter, and though shrunken to something far less suspicious, 
the wrestler is still sporting an obvious bladder bulge.

Trying not to let her amazement show, Aiko scolds, "Look at tha mess ya 
made!"

Sniffling a bit, Mutsumi replies, "I'm sorry, I really tried to stop it 
sooner, but I just couldn't."

Giving the tatami time to absorb the piss, Aiko squats in front of 
Mutsumi, relying on her own urethral plug to keep her pent-up pee in her 
protesting piddle pot, as she cups one of the wrestler's cheeks, 
"Regardless, I'm gonna have ta punish ya for ruining one of my tatami."

After some internal debate, Aiko grabs three coils of rope before 
pushing Mutsumi to her knees. Forcing the brunette to cross her arms 
behind her back, Aiko uses the first coil to bind the wrestler's arms in 
that position behind her back. She then uses the other two coils to bind 
Mutsumi's knees and ankles together.

Once she's done ensuring all the knots are secure and deciding to leave 
the dildo in Mutsumi's ass and the egg vibrator teasing Mutsumi's 
vaginal opening alone for now, she grabs a one way catheter with rounded 
tips on both ends. Kneeling outside Mutsumi's line of sight, Aiko starts 
feeding the exit end of the catheter into the wrestler's urethra.

"Please, don't put another bottle of water in my bladder." Begs Mutsumi, 
recognizing the sensation from earlier.

"Don't worry," replies Aiko, "I'm not gonna use another bottle of 
water."

Before Mutsumi can make any further comment, Aiko tenses her pelvic 
floor as she pulls her own plug, a few drops escaping before she can 
insert the intake end of the catheter. As pee starts to flow from the 
blunette to the brunette, Aiko kneels behind Mutsumi and hugs the 
wrestler to her chest, the bound girl's butt adding pressure to the blue 
apprentice's bladder.

Pinching Mutsumi's nipples, Aiko comments, "Peeing into another girl has 
such a wonderful, naughty feeling to it." and Mutsumi is too shocked by 
the situation to reply. Aiko lowers a hand to the wrestler's bladder 
bulge to feel it swelling once more. Smiling evily, Aiko brings her hand 
away from Mutsumi's skin only to suddenly bring it down upon the 
wrestler's bladder with a loud smack, making the brunette gasp in pain.

Aiko repeats this several times before she's interrupted by someone 
ringing the doorbell. She hasn't finished emptying her bladder into 
Mutsumi's, but she's at least empty enough for it to be manageable.