Ryosuke held a sports drink in his right hand and led Kirie across the beach with his left.
The beach ended in a rocky cliff that appeared impassable at first glance, but by wading through the water, they were able to continue beyond it.
Beyond the cliff lay a small cove, with a narrow strip of sand barely visible.
Kirie was still bewildered, but she didn't seem resistant. Rather, her face flushed with anticipation.
Clutching her floatie tightly, she asked, "Wh-what are we doing here...?"
"What do you think?"
As he leaned closer and locked eyes with her, Kirie responded to his kiss without resistance. Her beautiful lips tasted faintly of salt.
"Mmm... B-but someone might come."
Kirie kept glancing nervously in the direction they'd come from.
"It's okay."
Ryosuke grabbed her arm and pulled her close, leaving her no choice.
"Ah—"
The floatie she was holding fell onto the beach. He wrapped his arms around her soft back.
"Mmm, Ryo-kun...nnh..."
Kirie, though hesitant, cautiously wrapped her arms around his back. Her clinging gestures still carried a naive charm.
The bust of her swimsuit was pressed firmly against him. The sensation was pleasurable for Ryosuke, but Kirie also seemed to relish the skin-to-skin contact.
His hands traced down her back, then cupped her rounded hips, lifting them slightly as he caressed her. The damp feel of her bikini, the tender flesh spilling over its confines.
"Ah... Don't squeeze so hard!"
Kirie's ability to pull off that innocent act—looking up at him with tear-filled eyes and a sweet voice—was her fatal flaw, Ryosuke thought.
Unable to resist any longer, he kissed her more roughly than before.
"Mmmph?! ...Nn, fuh, amu... chup, nn, n... Ryo-kun's tongue feels so good..."
Kirie responded with surprising assertiveness, as if she'd forgotten she'd been so self-conscious about their surroundings just moments ago.
"Feh, fu, nmm... chuba, chumu..."
She seemed aware of his erection pressing against her lower abdomen.
"...Nn... Payback for earlier," she murmured between kisses, grinding her hips against him. The penis trapped between their bellies was squished and flattened.
"It's hard..."
"Kirie, aren't you being a little too bold?"
"It's all your fault, Ryo-kun... mmh... mmh... Will this do it?"
Her playful, almost childlike antics only added to her sinful charm.
"It might work, but it's too precious to waste like this."
Ryosuke interrupted Kirie's advances and took the initiative. He kissed her cheek, gently bit her ear, licked the nape of her neck, and kissed her rounded shoulders.
With each touch, Kirie squirmed like a restless child, tiny moans escaping from the corners of her lips.
"You really look stunning in that swimsuit. You're adorable."
"I told you not to say that..."
The off-the-shoulder bikini they'd chosen together complemented her vibrant beauty and figure perfectly, not just flattery.
"You're prettier than anyone on the beach."
"...Liar. I hate it when you say things like that."
Her glare was sharp, but with her flushed face, it lacked conviction.
"Right. I couldn't live if Kirie hated me."
With a faint smile, I resumed my oral teasing.
"Kirie, raise both your arms."
"Huh?"
Without waiting for her response, I grasped her forearms, lifted them, and ran my tongue along her smooth armpits.
"Hey! Stop it— that tickles...! H-hentai! N-no...! Ah, this is so embarrassing!"
I pinned down Kirie as she twisted her body, arched her back, and struggled, continuing my merciless assault.
"Mmph, fuh... Ah, you're sweating... Gross! N-no...! Nngh, uh, hmm... Nnn..."
At first, she fought back earnestly, but after I slicked her down with saliva...
"Are you starting to enjoy it now?"
"N-no, stop it! Ah, ah! N-no more... hah, haaah... but..."
"But?"
"Ryo-kun... you're acting like a dog. A little cute."
Surprised by her lover's unexpected calm, Ryosuke lowered his gaze and said,
"Master. The other side too."
"Huh? S-stop—!"
This time, he licked her left armpit.
"L-Lick, lick! I told you no...! Ah, ah, ah!"
Her earlier fierce resistance had vanished, and Kirie began to surrender to the pleasure.
"H-ah, nnn... D-don't just focus on such weird places..."
"You want me to touch your breasts too?"
"...!"
Kirie's face contorted, but she gave a small nod.
Ryosuke licked her slick skin while kneading her breasts with his left hand.
The large frilled swimsuit made her breasts appear even larger than they already were. But in reality, her breasts were solid and heavy, pushing back with strong resilience when pressed with a finger. Feeling around, he quickly found her nipple and began gently kneading it with the pad of his thumb.
"Hah, mmm...nnn...! Ah, aah..."
Her voice became even sweeter, responding to her favorite nipple stimulation. Combined with the stimulation of her newly discovered erogenous zone, she was melting into the fresh pleasure.
"Ah, nnn...! Ryo-kun...ah..."
Kirie seemed to have lost all resistance to having her armpit licked. She gently cradled Ryosuke's head with her left arm, her body softening as the new sensation washed over her.
"H-uuu...! Nn, ah! No, Ryo-kun... I'm going to... I'm going to...! Ah, ah, ah!"
Sensing Kirie's legs going weak, Ryosuke shifted their positions. He turned her around to face the sea.
"Hah... Ahh...! Ah..."
Behind her, Ryosuke kneaded her swimsuit-clad breasts, causing Kirie to shudder violently.
They weren't far from the beach. Though she couldn't see any bathers, she could hear their cheerful voices.
How could I be doing this... here...?!
She was on a trip with her friends, and there were so many people nearby.
Ignoring Kirie's inner conflict, Ryosuke's left hand slipped beneath the top of her swimsuit.
"Ah..."
His fingers didn't falter, immediately finding Kirie's sensitive nipple.
He knows everything about me now... Even where I like it... How I like it...
Far from that, every time they touched, he taught her new pleasures she'd never known before.
"I'm going to take off your swimsuit a little."
"No!" she protested, but even she—and Ryosuke—knew she wasn't serious.
Her bikini was pulled up, revealing her breasts with a soft bounce.
But Ryosuke teased her, playing with her nipples instead of focusing on what she really wanted. Even so, as his fingers stroked from the base to the tips of her breasts, a poignant tingling spread through her core.
"Ah! Ah! Nngh—!"
No one else was watching except Ryosuke.
Yet before her stretched the shimmering sea, its surface glimmering under the blue horizon.
Bathed in sunlight and the salty sea breeze, Kirie gasped and panted, her saliva dripping as she exposed her sensitive, wanton nipples.
"Ah! Ah! Nngh—!"
It's scary... I don't know what I'll do... But...
To be pampered endlessly by the person I love, to be completely captivated by him.
As this feeling floods my entire body, I become increasingly greedy. With him, I know I could overcome any wall—leap over any barrier. Even if it's a wall I can't return from...
I don't care! More! Even more!
Even if it's something bad, even if it's something shameful.
I want... more of that... I want you to teach me...
Shameless emotions surge forth, overflowing and spilling out...
Just as I think I can't take it anymore, Ryosuke's fingers, as if waiting for the moment, pinch both my nipples and gently rub them.
"Ugh?! Hah... haaah?!"
The impact caused the pent-up pleasure inside her to explode all at once. Sparks seemed to burst in her mind. Trying to escape the intense stimulation of her nipples, she arched her back, but Ryosuke held her firmly from behind, leaving her no escape.
Clutching his forearms with both hands, she let out a high-pitched moan.
"No! I'm gonna... I'm gonna come! Don't do that! It feels like I'm being electrocuted!"
With each schlick of his fingers on her nipples, Kirie climbed higher and higher.
"...Ah, ahhhh! Hah, yaaah! I... I can't take it anymore...!"
Her knees buckled, but Ryosuke's arms kept her upright. Drowning in the prolonged, sharp pleasure, Kirie wept, yet felt utterly blissed out.
"H... hah... heh... huu..." she gasped.
Even during her climax, his fingers continued to stroke her nipples, reducing her mind to mush...
Kirie realized she could no longer suppress her desire.
"...R-Ryo-kun..."
The moment the restraining arm loosened, she turned her head toward him and whispered.
"Next time, I'll do it... So let me, okay?"
*****
After saying that, Kirie wriggled free from Ryosuke's embrace again and began licking his neck. Her tongue moved in ticklish strokes, slurp, slurp.
Kirie kissed his neck, collarbone, shoulder, and chest.
"Mmm, chup... Here... slurp..."
She stared at his left nipple, then leaned closer and began poking it with the tip of her tongue.
Earlier, Ryosuke had been compared to a dog, but now it was Kirie who clung to him like a puppy or kitten.
At first hesitant, her tongue grew bolder, making lewd sucking noises.
"Chup, chup... Mmm, ha... mmm! Chup, chup... Nn, Ryo-kun, does that feel good?"
Kirie asked, looking up at him with a hint of anxiety. Ryosuke stroked her hair in silent affirmation.
Relieved, she continued:
"Mmm, nn, chuu... chup!"
She gently bit his nipple between her lips, moving her head back and forth to work it. The softness of her lips, the sensation of her wriggling tongue, and the slickness of her saliva were almost unbearable. Ryosuke called out to her.
"Kirie... would you do down there too?"
Kirie froze, looking up at him again.
"...Mm."
Her nod carried a faint hint of delight as she knelt down at his feet.
With each movement, her nipples and white breasts jiggled, but Kirie no longer seemed to notice. She reached out to untie Ryosuke's swimsuit.
"The string... it's stiff. Ryo-kun..."
When Kirie looked up at him pleadingly, Ryosuke felt weak. He undid the stubborn string of his swimsuit, stiffened by seawater.
"...Sorry. Thank you. Mmm, shh."
Kirie's hands lowered his swimsuit. As the erect penis sprang forward, Kirie flinched slightly, pulling back her head and widening her eyes.
But quickly...
"I'll lick it... won't I? Mmm, chu..."
Her lips moved tenderly toward the shaft.
Her tongue licked from the base to the underside, then teased the urethral opening in a teasing motion—before she tilted her head and began sucking rhythmically, moving back down.
She gently took one testicle into her mouth, rolling it carefully with her tongue, while her hand softly massaged the other.
"Mmm, mmm... Nngh, nup, nbo—"
All techniques Ryosuke had taught her.
Kirie, being so straightforward about sex, quickly mastered the techniques.
Just a short time ago, she'd never even kissed anyone, yet now she took his penis deep into her mouth without any hesitation.
Her usual expressions—
Her stubborn face with eyes narrowed in defiance, her sulky profile as she turned away in a huff, her bashful smile still tinged with childishness.
Just recalling these images of Kirie made his arousal surge.
The once-innocent girl now took Ryosuke's penis deep into her throat, cheeks hollowed as she drew it in with forceful sucks, her lips clinging as she guided him toward pleasure.
Slurp, smooch, mmmf... pop, pop!
Kirie's fully mastered fellatio created more than enough pleasure to drive Ryosuke to climax.
But Ryosuke interrupted the fellatio.
"Want to try something with your breasts?"
He guided her to think about her lover.
"Your breasts... uh, like this?"
He positioned her exposed breasts to sandwich his penis, forcing her to press them firmly together with her own hands.
"Does this really feel good...?"
Kirie's full breasts. The overwhelming pressure of her flesh against his penis sent a different kind of pleasure seeping into him, distinct from the sensation inside her.
"It feels good, and I can see your face clearly. This is perfect."
"Ugh... Don't say such embarrassing things! It's forbidden!"
He teased her, but he meant it too.
"If it feels good... then it's fine."
Even as she protested, she followed Ryosuke's instructions, moving each breast independently up and down to milk the trapped penis.
Then, on her own—
"Ugh... the tip..."
Her long tongue reached out to lick the glans protruding from the valley between her breasts.
"Slurp, slurp. Mmm, it's bitter... slurp, slurp..."
Her sharp tongue teased the pre-cum.
Her full breasts squish and distort. Her pink nipples are hardened with pleasure. Kirie's expression as she licks him fervently.
"Wow, this is heaven..."
"Mmm, you're exaggerating...! Mmmchup..."
Kirie begins moving her entire body up and down, pressing her breasts against his erect penis from tip to base, leaving no inch untouched. As she lowers herself, she covers his glans with her lips.
Squelch, smooch... pop, slurp, slurp...!
"That feels too good—!"
"Mmm, mm... It's okay, let go...? Mmph, slurp, slurp, slurp...!"
Unable to hold back any longer, Ryosuke's hips jerk spasmodically as he climaxes.
"Ah—! Eep?!"
A burst of thick white fluid splatters across Kirie's face.
"Mmm! It got in my nose..."
"Sorry, are you okay?"
"Yeah... Hmph, pfft. It's so thick and sticky... Nnn... So gooey..."
She wipes the semen from her face with both hands.
"Then, while I'm being bad..."
Ryosuke gripped his penis, still trembling with the afterglow of orgasm, and rubbed it against Kirie's breast.
"Ouch! That's hot—! Ah! My nipple, stop it...! Nngh... Stop!"
Savoring the rough texture, he decorated her beautiful nipple with a white, frothy design.
"Ah! Ahn! Don't press so hard...! Ah! Ah?! Ryo-kun, you're burying yourself in my chest...! Yaaan!"
Instead of fleeing, the pleasure-sensitive Kirie pressed her chest even closer, seemingly fascinated by this new sensation.
"It's so hot... isn't it? I released so much... I can never get tired of watching this."
"Being stared at so intently is a little embarrassing, though."
"But—"
Her pouting expression was utterly adorable.
"Kirie, stand up."
"Huh?"
Ryosuke turned Kirie toward the rocky wall, had her put her hands against it, and declared:
"Payback for the payback. I'm serious this time, so brace yourself."
He delivered these words with a fierce intensity.