"Children," Amu said, referring to her kids, niece, and nephew, "This here is Tadashi-kun and Sei-kun. Be good friends with them, okay?"
She had one of each hand on Tadashi and Sei's shoulders, thus having their shoulders touch each other. One of them, Tadashi, had a sour look on his face and looked like he didn't want to be here. Sei, his slightly younger brother, had a calm and curious countenance.
Aki finally spoke up. "Whoa! They look exactly alike!"
The other children were fascinated by the two brothers, both with dark red hair and red eyes. Even the charas were interested.
Amu smiled and stated, "Yes, they do, because they're identical twins. Don't they look like their father?" she waved her hand in the direction of a blonde-haired man who was sitting in the living room next to his dark red-haired wife, talking to the Soumas and Ikuto.
"How cool! Identical twins! How old are they?" Kiku asked, trying to get in front of the small crowd.
"We're four," Sei spoke up, warming up to the strangers. Tadashi, who really did not want to be with them, tried to get out of Amu's hold, but failed. He tried harder and grunted, but Amu held him tight. After three tries, he started to whine and cry and scream, "MA~MA~!"
The dark red-haired woman heard the disturbance and immediately tended to Tadashi, who immediately stopped crying and buried his head into her breasts. She smiled apologetically and rubbed Tadashi's back. Sei, however, was undaunted by his older twin brother's screams.
"I'm sorry that Tadashi is such a bother, Amu-san," Tadase's wife said, bowing her head.
"It's okay, Shiina, really! I'm sure that Tadashi-kun will have a good time with new friends, right, Tadashi-kun?" Amu smiled, looking at Tadashi's face that was moved to the side.
Tadashi, who was now completely calmed down, smiled contentedly and replied, "Yeah! Will Mama be with me, too?"
"Now, Tadashi, you know that Mama can't be with you all the time, don't you?" Shiina scolded with a stern look on her face, standing her son up on his feet.
Tadashi frowned and said disappointedly, "But Tadashi wants to be with Mama…"
"Tadashi-kun, I'm sure that you'll have so much fun with these onii-chans and onee-chans that you wouldn't even want to go back home!" Amu smiled warmly. The dark red-haired boy looked doubtingly at her.
"Do it for Mama's sake, okay? And then I'll give you something good to eat tomorrow," Shiina promised, locking her pinky finger with Tadashi's smaller one.
Tadashi considered it for a while, then finally said, "Okay… for Mama's sake!" and gave her a big smile. His mother smiled back, got up from the floor, and went back to sit on the couch with her husband.
The red eyes watched as he saw his mother "far away" again and started to look panicky. But, remembering that this was for her sake, he tried to stop worrying and turned back to the awkward little crowd.
"Okay! Do you think you'll be okay, Tadashi-kun? If so, I'll let you guys play with each other," Amu decided, smiling. Tadashi nodded a little uncertainly, but nevertheless determinedly. Seeing this, the pink-haired woman sauntered off to the adult crowd.
Tadashi looked shyly at the big brothers and sisters (except for Ai). Unexpectedly, he bowed politely to them and said, "Nice to meet you. My name is Tadashi."
Akito stood in front of the small crowd, bending to their height. "Hi, Tadashi-kun, Sei-kun! My name is Akito," he introduced himself, smiling.
"Hello, Akito-nii-san," Sei said with a friendly smile. Akito was surprised because he'd never been called a "nii-san" outside of his family. He quite liked it, too.
The rest of the gang introduced themselves, then all that was left was Ai.
"Aren't you gonna introduce yourself, too?" Miu asked her.
Ai hid behind Akito's pant legs, holding onto him like a child would hide behind his mother. She had a slight blush on her face.
"Come, Ai, don't be shy, now," Akito said softly, gently pulling Ai away from his pant leg and putting her in front of him so that she could face the Hotori twins.
Ai looked down at her feet for a little while, then she peeked up at the boy's faces.
"H-Hello… My name is Ai," she said in her bird-like voice as she bowed. "Nice to meet you," she smiled shyly at them.
Sei was awestruck. "Kawaii onnanoko da…" (A/N: Translation: "What a cute girl…") he murmured, blushing.
"Cute girl?" Tadashi scoffed. "What's so cute about her? She won't even look us directly in the face!"
Sei looked disapprovingly at his older brother. "Tadashi, don't speak ill of her…"
"It's okay, Sei-kun," Ai said softly. "I like him anyway," she smiled brightly.
Tadashi looked surprisingly at the blue-head, then turned his head away in a grunt.
The younger twin smiled at her and said, "Let's have fun together!" and took both of her hands, fire in his eyes.
Ai blushed and replied enthusiastically, "Yeah!" and she took him to where the games were, leaving the older crowd in a daze.
The oldest child, Aki, grinned at them. "Looks like we got two little lovebirds, eh, Akito?" she hinted while nudging him.
"Eh~ no fair! No boy has ever fallen in love with me yet!" Kiku whined. Akito chuckled.
Kaita screwed up his face in a disgusted look. "If that's what falling in love looks like, I don't think I will ever fall in love!"
Tadashi grunted. "Let them do whatever they want, but I don't want anything to do with her," he said while turning his head away and crossing his arms.
Miu smiled happily. "It's so cute seeing them together~!"
Natsumi, the first chara to speak up since the introduction, clasped her hands together dreamy-like and said, "Ahh~ how happy they'll be!" Tetsu looked at her dreamy-like pose and blushed.
Akito sighed and looked at Sei and Ai as they were now playing a little game amongst the activities and games set up. He somehow got the feeling that they were going to keep in contact for a long time.
Sei-kun, I hope you will take care of Ai in the future…
Sorry it's so short! But I've kind of run out of ideas, so… I hope it's interesting enough!
I got the twins' personalities from a set of male twins that I know. The older one cried for a while when his mom went away, but the younger twin was just calm and undaunted by his brother's whines. The younger twin also seemed to like me, which is why I made Sei to like Ai at a young age. Of course, I gave Tadashi and Sei their own unique personality traits (like Tadashi being a slight tsundere).