"!!!!"
Before the measuring even started, the mere sight of Rin Ito approaching with the tape made Shinju jump from nerves.
It wasn't Shinju's first time in a hotel room, but she had never been to a "regular" hotel before; it was always love hotels.
However, she was always with her sister, Juju, and they only used them as sets for photo shoots.
Both were students, so renting a professional studio cost a fortune, whereas a themed love hotel was much cheaper.
But being alone with a man in a room like this was a first for Shinju.
She had tried to ask Marin or Moeha to come, but they both claimed to be busy—though they were clearly lying.
"Should I help you, or will you do it yourself?" Rin asked with a wink at the bashful Shinju.
"I... I'll do it myself!"
Shinju took several deep breaths, squeezed her eyes shut, and grabbed the collar of her sailor uniform.
Then...
"Mmmph!"
With a soft whimper, she revealed her flat, smooth stomach and her petite navel.
Then came the massive breasts wrapped in plain white cotton, a sight that made even Rin marvel.
Even though it wasn't his first time seeing them, he was still shocked... Was it F? Or G?
Shinju's bra alone was larger than Juju's entire face!
Even though she was still in her lingerie, Shinju instinctively tried to cover herself with her arms in front of Rin.
...But she couldn't hide them at all!
Shinju kept her eyes low, not daring to make eye contact, her gaze fixed firmly on the area between Rin's legs.
She was watching. She was staring!
Will he get excited? Will Big Brother get hard just by looking at my body?
The result was... unremarkable.
Seeing that Rin's trousers didn't show any sign of a "tent," Shinju's mood immediately plummeted.
Is it because I didn't show enough? As I thought, my body is just disgusting and not cute at all.
When Marin and Moeha were here before, he definitely got excited because of them.
Last time, Marin and Moeha had brainwashed her into believing that if Rin reacted to her body, it proved she was "cute."
And back then, Rin did have a reaction, even spraying a massive "proof of charm" all over her face.
More than shame, Shinju was now worried about Rin's reaction.
If he didn't react while she was in her underwear, did that mean she had zero allure?
But last time, I took everything off...
With that thought, Shinju bit her lip and lowered her protective arms.
She stood up and unfastened the hidden clip on her long sailor skirt.
As the deep blue fabric slid down, her pure white panties—the final barrier protecting her most delicate part—were revealed.
Stare.
Shinju became a "crotch-staring cat" once again, her eyes locked onto Rin's fly.
Last time, she only exposed her breasts to serve him; she had never taken off her skirt.
"D-do... do I need to take off the underwear too?"
Shinju asked in a tiny voice. Rin followed her gaze and guessed exactly what she was thinking.
Even as a former "Pure Love Warrior," Rin wouldn't usually get hard just seeing a girl in her bra, but now...
It would be rude not to be excited.
"Normally, it's fine to keep them on, but for the most accurate and perfectly fitting costume, it's better to measure everything bare," Rin said in a flat, neutral tone.
"Th-then... for the sake of the perfect cosplay outfit..."
Shinju's voice was as soft as a mosquito's buzz. She wasn't talking to Rin; she was convincing herself.
She reached her hands behind her back.
Click... With a soft snap, the bra holding her massive chest was released.
If not for the shoulder straps, Rin figured the breasts would have flown out from the sheer kinetic energy.
It seemed that to make her chest look smaller, Shinju had been wearing a bra one size too small.
Then, Shinju bent over to slide her panties down.
However, rather than her secret crevice, it was her breasts—which looked even more mountainous as they dangled under the force of gravity—that captured Rin's full attention.
"H-how... how is it...?"
Biting her lip, Shinju clasped her hands tightly behind her back.
It was the only way to resist the urge to cover herself.
Yet, her downcast eyes remained glued to Rin's crotch.
It really would be impolite not to be hard now.
Rin finally relaxed his control over his body.
As the "tent" slowly began to rise in his pants, Shinju let out a long, audible sigh of relief.
"Chest out, head up. Don't hide your hands and don't slouch. Keep your back straight."
"O-okay!!!"
With her cheeks burning, Shinju straightened her back, making her pert, massive breasts protrude even further.
Under the chill of the air conditioner, her nipples became even more prominent and erect.
Rin stepped forward and wrapped his arms around her to measure with the tape.
Her soft, massive breasts pressed firmly against Rin's chest as if they were about to overflow.
While he measured, Shinju was so tense she didn't even dare to breathe.
Rin leaned down slightly, his face hovering right by her chest.
His warm breath hit her delicate pink skin, making her feel an intense, ticklish itch.
"Hmm... Overbust is 93... Underbust is 69... 93 minus 69 is 24!?"
Hiss... Rin sucked in a sharp breath.
A difference of 25 is a G-cup. Shinju's 24 was at the absolute limit of an F, just one centimeter away from a G.
He moved from her bust to her waist, then her hips.
When Rin squatted down to measure her lower half, he noticed Shinju's entire body went rigid.
...Not just her figure, even 'down here' she looks much more mature than her older sister.
Next came height, arm span, shoulder width, and leg length.
Drawing from his previous experiences, Rin recorded every single data point of Shinju's body.
While Rin was recording Shinju's data, Marin and Moeha—who had claimed to be "busy"—had already returned to the Baumkuchen studio.
Their "business" was just a cover.
"Juju-sama is just as cute as ever today~"
Marin hugged the petite Juju tightly, treating her like a living doll.
Juju pushed her away with a look of pure disgust.
Orie was much faster at measuring than Rin; by the time the duo returned, Juju was already dressed and discussing the outfit details.
"What are you doing here?"
Juju frowned at the excited Marin.
She was a member of the circle, but only as a cosplayer; she didn't have a desk or a specific job here.
"Hehe, I have business with you, Juju-sama~ Orie-chan, I'm borrowing her for a bit."
Marin pulled Juju out of the room along with Moeha, leaving Orie to focus on the design.
"What is it?"
Juju's brow remained furrowed. She seemed annoyed, but Marin knew this was just a habit to maintain her "Big Sister's Authority."
She wasn't actually mad.
"Hey, hey... remember when you asked me to help boost Shinju-chan's confidence?"
"I did..." Juju looked confused. "You had Rin Ito draw that manga for her, right? She seems much more cheerful now that she's a 'heroine.' Do I need to thank him officially?"
"No, no, no," Marin waved her hand. "I'm saying I thought of a way to make her truly confident!"
"Oh?" Juju's interest was piqued. "What way?"
"Ahem..." Marin cleared her throat.
"The reason Shinju-chan lacks confidence is mainly due to two things. One is her body being so different from her peers, but the manga solved that."
"Mmm... and the other reason is me, right?"
Juju let out a helpless sigh.
"Bingo!" Moeha smirked and reached out to ruffle Juju's hair.
"Juju-sama is simply too brilliant. Because you're petite, you always act tough to maintain the 'Perfect Big Sister' image in front of her."
"Because you're the sister, you're always the one protecting her. You're always the one giving in...
"The more you do that, the more Shinju-chan feels useless, hiding behind you. It makes her more and more insecure."
"Mmm... that's true. I never realized that before." Juju's shoulders slumped. "So, do you have a plan?"
"Hehe, I didn't realize it either until I met some other insecure friends recently. I have a few ideas now."
Marin winked at Juju, a glint of mischief flashing in her eyes.
"As they say, 'To untie a knot, you need the one who tied it.'
"This method requires your full cooperation, Juju-sama~"
"Requires my... cooperation?"
The logic was sound, but looking at Marin's expression, Juju suddenly felt a strange chill running down her spine!