Kokoro and Helena invited Kasumi and Momiji to go on a vacation with them for the summer. They spent their time in a private penthouse Helena owned near the beach. The four of them paired off for their first batch of activities. Kokoro and Helena had something in mind: a private fashion show. The ninja couple were apprehensive at first but they caved eventually, thinking it would be fun. Kokoro and Momiji went to go change, leaving Kasumi with Helena. Kokoro's idea was matching lingerie outfits with Momiji. When she showed the shrine maiden the attire, Momiji blushed at the outfits.

"W- we're wearing those?!" Momiji stuttered.

Kokoro nodded. "C'mon, Momo. It'll be fun. You don't want them beating us, do you?"

Momiji thought Kokoro was challenging her, but the kunoichi's pride took over and she willed up the courage to go along with Kokoro's idea.

"Okay! I'll do my best!" She exclaimed. Kokoro hugged her "big sis" figure in excitement and handed her one of the outfits.

Momiji took it and slightly blushed again, but she wanted to win. Even though there was nothing on the line… except for pride.

Momiji had some trouble, but she eventually got the lingerie on. She took a look in the mirror, slightly embarrassed.

"It's… not bad. At least I got it on." She said to herself. She exited the change room and saw Kokoro standing with her fists on her sides.

"Well, it took you long enough." The geisha joked. Momiji's mouth hung open at the angelic site before her.

"Koko… you look… God, you're gorgeous!" Momiji said, surprised. Kokoro giggled as she slightly blushed.

"Awww, thanks sis… But you look way better than me. You look…sexy." Kokoro said.

Momiji covered her face in embarrassment, not excepting little Kokoro to call her that. Kokoro giggled at how cute Momiji was being.

Momiji finally calmed down and put her hands down.

" …Thank you, Kokoro." with a smile.

Kokoro hugged Momiji again longer this time. Momiji returned it, brushing Kokoro's soft hair. Her "little sis" looked up with hope in her eyes.

"We're going to win for sure… but I want this moment to last forever between us." Kokoro admitted. Then, she said something surprising Momiji.

"Momo… if it's all right with you…. Can we take a picture together like this? Pleeeeease?" Kokoro whined with the biggest puppy dog eyes she can muster.

Momiji chuckled at how hard she was trying. But she could tell in Kokoro's words how much than would mean to her.

"Okay, sure." She caved, petting the geisha.

Kokoro nuzzled her head in Momiji's stomach, excited to capture the moment. Momiji giggled at the touch and Kokoro pulled her to a nearby stool near a camera. She sat down first before placing Momiji on her leg, wrapping a hand to sit near Momiji's backside. The maiden felt a little awkward at how Kokoro positioned her, but she adjusted.

Kokoro set the camera to burst shot on a short timer.

"You ready?" She asked Momiji.

The shrine maiden nodded and Kokoro pressed the button, getting into position holding Momiji. The both of them posed with lovely smiles, waiting for the camera to go off. Just when the camera was almost ready to shoot, Kokoro slowly moved a hand near Momiji's small bra and moved a finger under it, touching her nipple. Momiji went from posed to startled as the camera caught the sneaky move in real-time with all the shots.

Momiji gasped slightly from her 'little sis's' touch. Before she can say something, Kokoro already moved a second finger to rub the nipple in-between them slightly.

"Ah! K-Kokoro! What… are you doing?!" Momiji asked, panting a little.

"Whaaat? You don't like my touch?" The geisha teased. Momiji blushed.

"C'mon, "sis". Don't tell me you don't like this…" Kokoro continued teasing.

Her hand grabbed Momiji's butt cheek softly under the lingerie. Momiji slightly moaned from the touches as she was still confused to what Kokoro was doing.

"Koko! What is… the meaning of this?!" Momiji asked, panting a little more.

"Momiji… I didn't lie when I called you sexy. You're perfect in every way." Kokoro said softly.

"You're an angel. A goddess. You're the definition of beauty. And I want to cherish that for myself today." Kokoro confessed.

"So… so there's no fashion show?" Asked a confused Momiji.

"Well… we can STILL have one later. But that doesn't matter right now." Kokoro said, continuing her movements.

Momiji let out another moan. She couldn't deny how soft Kokoro's touches were. She was very delicate with her. Then, she realized…

"Kasumi!" The maiden yelled.

"Oh, don't worry about her. Helena is taking care of her." Kokoro assured. Momiji wondered what Kokoro meant by that.

The two stood up while Kokoro kept a hold on Momiji, continuing her touches. Momiji still held on, too, as she was backed up to the foot of the bed behind her. Kokoro trapped her there and started softly grinding her thigh into Momiji's crotch. Momiji started panting and moaning a little faster.

"I know you're going to be married to Kasumi one day, and I'm happy you'll be her wife… But I never got to thank you for being so kind to me." Kokoro said.

"I was just a stranger to you when we met and now… You're my 'big sis', Momo. I want to show you how much I care about you."

"K…Koko…Kokoro…." Momiji panted.

"Please… let me show you my love today. I loved our time when we dated, and I never got to pay you back. Let me be your lover one last time. Just for today. Please?" Kokoro asked, kissing Momiji under her chest.

"Ko…Kokoro…You know…I'll…always… love you…" Momiji panted. She managed to make a smile, feeling touched from Kokoro's words.

"…Yes. Show me… your love… one… more… time. Kokoro… My little sister… I love you…" Momiji caved.

Kokro showed a loving smile. "I love you, Momiji. My big sister." She said.

She stopped her touches before pushing Momiji lightly onto the bed. Kokoro crawled on top of Momiji and started lightly smooching her. Their kisses grew more loving as Momiji held Kokoro's head. Kokoro still lead the kisses as she gently grabbed and squeezed Momiji's breast under the small bra. She played with the nipple gently pinching and pulling it, making Momiji moan. She figured that was the perfect time to mash their lips together and seal the kiss.

The two moaned, Momiji being the louder of the two girls from the passionate lip lock. Kokoro placed her leg on Momiji's crotch and grinded away again, more aggressively this time. Momiji kept moaning into Kokoro's mouth, loving the geisha's touches.

Kokoro reached her hand around and grabbed Momiji's butt cheek, caressing and rubbing it. She broke the lip lock to start sucking on Momiji's breast and nipple. Momiji's moans filled the room as Kokoro kept her sensitive touches going.

"I… love you… Kokoro!" Momiji moaned loudly.

Momiji grew wet under Kokoro's grinding, making the geisha giggle at how turned on "Big Sis" Momiji was getting. The geisha loved tasting the maiden's flesh and peak. She left loving kisses on the nipple and around it on the breast itself. She moved up to Momiji's neck and started kissing it while using her hand to caress Momiji's mound of flesh again.

Momiji kept moaning happily as she was becoming putty in Kokoro's hands. The geisha wondered how much more she can show the shrine maiden how much she loved her as Kokoro's touches on Momiji's sexy body continued throughout the afternoon.