Beach Birthday by Imouto Kitten

The sun was warm, but not too warm and the air crisp as Jyunichi stepped 
out on the beach in swim trunks and a wide brim hat.

Well into September, the worst of the summer crowds had vanished, but 
the chill of the coming autumn had not yet arrived, and the Kindergarten 
teacher decided it was about the best circumstances he and the group he 
had come with could have asked for this little vacation.

The young man is pulled from his enjoyment of the weather as a very 
familiar voice calls out, "Jyunichi-sensei!" and turning around, he's 
just in time to catch a Pink missile as it collides with his midsection 
and he lands flat on his back in the sand.

Recovering from the impact, Jyunichi finds himself straddled by one 
Poppu Harukaze, looking as adorable as ever with her hair in its usual 
feathery pigtails and sporting a pink bikini to match.

Raising a hand to stroke his former student, and secret girlfriend's, 
candy floss hair, he replies, "I keep telling you, I'm not your teacher 
any more, you can just call me Jyunichi-kun." a line it feels like he's 
repeated everytime he's seen the now second grader and soon to be 
eight-year-old since that Christmas party last year when the seemingly 
innocent child not only seduced him, but stole his heart.

"I wanted to thank Jyunichi-kun for agreeing to chaperone my Birthday 
Party." Comments the girl, wriggling a bit where she sits, something 
Jyunichi finds more than a bit distracting.

"Yo-You're welcome," replies her former teacher, growing more than a bit 
flustered at the girl's subtle bouncing, "So-sorry we couldn't have the 
party on your actual birthday."

"No worries," replies the pinkette, "Onee-chan can't afford to miss a 
day of school, and it wouldn't be great for our friends and me to set a 
bad example by skipping a day of school either." Feeling a certain bit 
of her boyfriend's anatomy starting to react to her not so innocent 
movements and pressing against her butt through their respective 
swimwear, Poppu's smile turns from angelic to devilish as she jumps to 
her feet, and bending over a bit to stick out her rear in Jyunichi's 
direction, she gives her bikini-clad bottom a quick shake and a single 
spank before crying out, "Catch me if you can!" and making a break for 
it, kicking up loose sand in her wake.

Though caught off guard by his little girlfriend's sudden departure, 
being a gym teacher and used to wrangling crowds of children even 
younger than Poppu, it doesn't take long for Jyunichi to catch up to the 
pinkette, and upon catching her, he immediately starts to tickle her, 
soon reducing the girl to uncontrollable fits of laughter.

As she wriggles and writhes upon the sand, Poppu's arms are too short to 
properly retaliate against her older boyfriend's tickle assault, but the 
man kneeling over her doesn't quite have the unassailable advantage he 
thinks he does.

It takes her a while to squirm into the right position, but Jyunichi's 
fingers suddenly halt in their dance across Poppu's ribs and armpits 
when he feels something warm grinding against his crotch. Glancing down 
to get a good look at their position, Jyunichi discovers that, while he 
was tickling her, Poppu managed to hook her tiny legs over his hips and 
her bikini-clad girlhood is now pressed rather firmly against the bulge 
in his swim trunks, said bulge growing bigger as she continues to grind 
her childish cunny against him.

In a whisper barely audible over the waves and the calls of seabirds, 
Poppu comments, "Oh my, I didn't know Sensei gets aroused from tickling 
little girls." and for once acting more her own age, she starts to 
quietly chant, "Sen-sei is a hen-tai, Sen-sei is a hen-tai, Sen-sei is a 
hen-tai."

Between their position and the way she's teasing him, there is little 
Jyunichi wants more at that moment than to pull those bikini bottoms 
aside and stuff the second-grader's snug snatch, to pound the pinkette's 
pussy until she forgets her own name, and to pump her full of his seed, 
but just because they missed the summer crowds doesn't change the fact 
that they are out in the open in a very public place, and deciding to be 
the adult for once, He lifts Poppu under her arms, hugging her to his 
chest as he stands, hoping no one notices him tenting his trunks as he 
whispers in Poppu's ear, "Well, isn't the birthday girl a rather naughty 
nymphet, trying to shamelessly seduce her sensei." though he doesn't 
quite manage to keep up a scolding tone through out, and as he places a 
hand under her rear to help hold her up, he can't help but give one of 
her half-moons a subtle squeeze, or to briefly swipe a finger between 
her thighs as they wrap around the bottom of his rib cage, the gym 
teacher noticing dampness on her gusset despite her having not gone near 
the water yet.

"Come on, Jyunichi-kun, don't tease me." whispers Poppu in return before 
trying to steal a kiss.

Dodging her lips, but giving in enough to plant a kiss on her forehead, 
he replies, "You started it, Fairy Floss," as he starts carrying her 
back towards where the rest of the party guests are gathered, "and 
birthday girl or not, you can wait until we're somewhere we won't get 
caught."

###

Of course, Poppu's antics didn't stop there. Whether she was stretching 
in preparation for a swim, playing volleyball with her friends, or 
building a sand castle, the little minx never misses a chance to show 
off how that pink bikini shows off her slender thighs or her trim tummy, 
or the way those bottoms hug her cute, little butt, and on more than one 
occasion, he has to stealthily adjust his swim trunks to conceal his 
arousal from his other former students and the older girls Poppu had 
invited, and Jyunichi can't help thinking that his little girlfriend is 
going to be the death of him with how much she's teasing him. There was 
even a moment where he found her crabwalking through the damp sand, 
obstensibly imitating a crab she had spotted, but the gym teacher is 
certain her movements are meant entirely to make him hot under his 
non-existant collar, especially with the mischievious smile she gives 
him when their eyes meet.

And when she takes her turn at splitting a watermelon, he's certain the 
way she locks out her knees and sticks out her butt, giving him a good 
look at how her bikini bottom hugs not only her butt, but her girlhood 
as well as she brings her stick down in a perfect overhead strike, her 
legs framing the nearly identical halves of the melon she cleanly splits 
in two was done on purpose and as he joins the other guests in 
applauding her skill, he can't help wondering how much she practiced to 
get that pose down so well.

And naturally, as the group enjoy a meal of watermelon, a extraordinary 
birthday cake courtesy of one of the older girls Poppu invited, and 
other beach friendly party foods as they encircle a bonfire and the 
coming dusk paints the sky orange, Poppu insists on sitting in his lap, 
her bikini-clad bottom grinding against his erection.

Just when he thinks he's either going to jizz in his pants or snap and 
fuck his little girlfriend in front of the other guests and damn the 
consequences if Poppu doesn't stop with her teasing, the child discards 
her plate, empty aside from a well-stripped watermelon rine and tilts 
her head up as she calls his name in a barely audible whisper, 
"Jyunichi-kun,"

"Ye-yes, Poppu-chan?" replies the young man, struggling to stay 
composed.

"I found a nice, out of the way spot while exploring earlier..." 
Bouncing in his lap for emphasis, she gives him a saucy smile and 
propositions, "How about we sneak off and you can give me the birthday 
present you denied me earlier?"

Sunset was soon approaching and he knew they would have to leave not 
long after night fall to ensure they got back to Misora in time for the 
children to get a good night's sleep before school the next day, but at 
that moment, he was too far gone to resist being lead by his cock, 
though thankfully, Poppu had enough awareness to grab his hand and not 
his bulge as the pair sneak away from the party and the pinkette leads 
him to a small cove, the surrounding rock walls more than enough to 
conceal them from anyone who doesn't look through the gap at the cove's 
entrance and just large enough and shallow enough for a couple to enjoy 
some alone time.

As soon as they are alone, Poppu tackles him once more, splashing both 
of them with sea spray as he lands face up in the shallow water, and 
Poppu wastes no time in claiming the kiss she was denied earlier, her 
tongue aggressively invading her boyfriend's mouth where it meets his 
and begins a fight for dominance.

When they break for air, Poppu sits up, straddling his midsection and 
letting him spot something. Lifting a hand to her wasteband, he gently 
presses on the bladder bulge protruding above the pink garment, no doubt 
the result of all the watermelon she ate, at least as much as anyone 
else at the party, as he teases, "Oh my, that's quite the bump... sure 
you didn't swallow a watermelon seed?"

Squirming a bit under his touch, clearly feeling the effects of eating 
so much watermelon on a day a bit on the cool side for a beach trip, 
Poppu manages to shoot back, "Do you think I'd look cute with a 
watermelon growing in my belly?"

Though his comment was a joke, and the idea of someone actually having a 
watermelon growing inside them is adsurd, Jyunichi would be lying if he 
claimed the mental image his girlfriend's question conjures wasn't hot 
as hell, though he knows the closest he'd ever get to fulfilling such a 
fantasy in real-life would be if he got Poppu Pregnant, a possibility 
that should at least be a few years off.

"I bet you'd look absolutely adorable with a big, watermelon belly!" 
comes his reply as he rubs her protruding piddle pot some more., 
pressing harder as she slides back in desperation.

Eventually, her butt runs into the tent in his swim trunks, and 
apparently wanting to get away from his probing fingers before she wets 
her bikini, she comments, "I've been wanting to see Sensei's cock all 
day, so let's see how big its gotten!" as she smoothly rises into a 
squat, grabs his waistband as she steps back and comes to stand between 
his thighs, his swim trunks pulled down far enough to reveal his 
erection, standing at attention, the tip even with her crotch.

"Wow, I think it got bigger since I last saw it!" exclaims Poppu, eyes 
going wide at the sight of his erection. Grinding one foot into the wet 
sand for stability, the pinkette lifts her other foot to run her sole 
along his shaft, Jyunichi shivering at her touch. "Do you like the 
feeling of a little girl's foot on your cock?" and at his nod, she 
adopts her teasing tone from earlier, Sensei really is a hentai! Makes 
me wonder if I can even trust you to be around all of my cute, little 
kohai at Sonatine!"

"It's only like that because a naughty nymphet has been trying to seduce 
me all day!" comes his retort. "None of my other students, past or 
present, have ever gotten a reaction like this from me."

"Good," replies Poppu, "I don't want Jyunichi-kun getting hard for any 
other girls. Your cock belongs to me and me alone!" With that, she steps 
forward, planting her feet in the sand to either side of his hips as she 
pulls her bikini bottoms aside with one hand and parts her petals with 
the other, exposing her entrance to Jyunichi's horny gaze, that most 
enticing of holes looking way too small to accomodate his member despite 
the many times the pair have done things like this in the last 9 months.

Without needing to either stand on her tip toes or bend her knees, Poppu 
kisses the tip of Jyunichi's cock with her cunny, giving him a saucy 
smile as she comments, "My pussy is very hungry, please give it plenty 
of the cream it craves!" before dropping into a squat, taking the 
entirety of the member inside her in a single, well-practiced motion.

Jyunichi has no idea how such a small girl manages to take such a large 
cock, but as he's engulfed by Poppu's pussy and womb, her cervix 
squeezing the midpoint of his shaft as if to say, "you aren't getting 
away until I'm done with you', he's feeling too good to realy care. 
Pushing her feet into the sandy bed of the cove, Poppu rises halfway 
back to standing, half of Jyunichi's cock emerging from her passage, her 
cervix's grip around the collar of his cock trapping his head in her 
womb and preventing her from rising all the way.

Placing hands on her knees and leaning forward, Poppu starts bouncing in 
earnest upon her older boyfriend's manhood, soon working herself into a 
frenzy, the birthday girl having obviously spent the day looking forward 
to this as much as the young man.

Admiring the way his prick plunges into Poppu's puny pussy over and over 
and how adorable she looks lost in pleasure as she rides him, Jyunichi 
can see the way his cock bulges her trim, little tummy, the outline of 
his cock head popping up from behind her bladder bulge every time she 
drops her hips.

But as good as being inside her feels and as mesmerizing as the sight of 
her belly bulging from both being crammed full of cock and bursting with 
pee, the trance is broken when her passage suddenly clenches up around 
him and her hands shoot for her crotch as she halts in her movements.

"You okay, Poppu-chan?" he asks, a bit concerned he might have 
accidentally hurt her.

"I just really need to pee," replies Poppu, squirming a bit before 
continuing, "All of that watermelon wants out!" Resuming her bouncing 
while keeping her hands firmly clamped over her crotch, she adds, "You 
better hurry up and fill me with cream before I have an accident."

Kind of wanting to see his little girlfriend lose it like one of the 
barely potty-trained Sonatine first years, Jyunichi tries to hold off 
his impending climax, but between having already been close before Poppu 
had let on just how much she's feeling her bursting bladder, the way her 
desperation has caused her to tighten up around him, and the fantasy 
working against his efforts to make it a reality, it isn't long before 
he's erupting inside her, the tight seal formed by her cervix ensuring 
his seed has nowhere to go but into her womb, the hollow organ quickly 
becoming a cum balloon, soon dwarfing the swell of her piddle pot with 
no sign of slowing in its growth.

Just as Jyunichi has no idea how he even manages to fit inside his 
little girlfriend in the first place, he's also amazed by how much 
greater his cum volume is when he's with her compared to when he use to 
masturbate, pumping several liters into her tummy instead of the small 
dribble he gets whenever he uses his hand.

By the time he's done cumming and Poppu stands up, letting his now limp 
member plop out of her passage, she really does look like she has a ripe 
watermelon in her belly as she starts to look around, probably for a 
place to empty her bladder.

But Jyunichi is not yet ready to give up on trying to make her lose 
control and realizing something was missing from the insemination, he 
comments, "I notice you didn't cum, let me make it up to you." and 
before Poppu can muster a response, he's grabbed her hips and pulled her 
forward, her knees digging into the sand to either side as she's pulled 
off balance, and pulling her hands away from her crotch, he drives his 
tongue deep inside her as she lands on his face.

"Jyu-Jyunichi-sensei!" cries the girl, trying to get away from the 
tongue suddenly stirring up her most precious place. "If...if you do 
that...It...it's going to come out!"

As it turns out,, Poppu had been right on the edge, for Jyunichi has 
barely started eating out his girlfriend when her body starts trembling 
in climax, her bladder giving out in the process and her spasming womb 
causing his seed to spurt from her pussy now that there's nothing to 
plug her up, and Jyunichi does his best to lap up every drop that comes 
out of her, though she does manage to make a mess of his face 
regardless.

Once she's empty, Jyunichi sits up, placing her on shakey legs, and as 
she regains her senses from the orgasm he just gave her, she cries out, 
"BAKA! Not only is sensei a Hentai, but he's also a baka!" but before 
his girlfriend can break into a full on tantrum, he's pulled her into a 
kiss, the Pinkette coming to rest in his lap, and while the kiss does 
calm her down, she can soon feel Jyunichi growing excited again, his 
erection rising up to press against her butt.

"Sensei is insatiable!" cries Poppu as she breaks the kiss.

"Oh, like my naughty nymphet isn't eager for more." comes his reply 
before lifting her up, pulling her bottoms aside once more and impaling 
her on his member, the girl having no protest to another round as she 
lets out a moan and kisses him again.

When the kiss is next broken, it's due to Poppu letting out a yelp, more 
of surprise than pain, as Jyunichi's palm comes down upon one of her 
half moons, the girl asking, "What was that for?"

"Overseas, they have a tradition,, where children get a spank for each 
year on their birthday... though if you prefer, that could be for the 
way you tackled me to the sand this morning."

Poppu doesn't say anything, but her non-verbal reactions make it clear 
to Jyunichi that the idea excites her, and as he continues to bounce her 
in his lap, he occasionally gives her another smack on her plump, little 
rump.

"Two, that's for making me chase you down."

"Three that's for halting my tickle assault by grinding against me."

"Four, that's for tempting me with pre-swim stretches."

"Five, that's for teasing me at the volley ball net."

"Six, That's for that crab walking display."

"Seven, that's for the clearly practiced watermelon split."

"Eight, that's for grinding against me during the bonfire!"

With the eighth smack to her bottom, Poppu tips over the edge into her 
second orgasm of the evening before collapsing against Jyunichi's bare 
chest, but as she's basking in afterglow, she's suddenly snapped out of 
the post-climatic euphoria by another strike.

"And that's for riding me with a full bladder."

"Hey," Protests Poppu, though clearly, the late hour and the exertion of 
the day's activities are starting to catch up with her as a yawn lets 
off steam before it can even start building, "That was nine spanks."

"Did I forget to mention they also include one for luck?" replies 
Jyunichi, rubbing gentle circles on Poppu's back and kissing her 
forehead, his little girlfriend relaxing under his touch... In fact, his 
efforts to relax her are so effective, that by the time he's finished 
using the shallow, but clear water of the cove to wash away evidence of 
their activities and put their clothing back in its proper place, his 
girlfriend has curled up in his arms and fallen asleep.

Realizing that the sun has now fully set, Jyunichi whispers, "Good 
night, and happy birthday." to the sleeping girl as he starts back 
towards where they left the party, the teacher hoping at least a few of 
the other children he's supposed to be chaperoning have already started 
preparing for their departure.