Y/N had been feeling a little bit under the weather but still proceeded to do her job. She had this feeling that she might be pregnant with their second child. Not wanting to disturb Shinobu just for a simple check on whether she's pregnant or not, she bought herself a pregnancy kit to test out. The pink stick was in her hands that shook, rushing to her husband that was busy at work. Her arms wrapped around his shoulders, loosening the tensed shoulders just from her warm touch.

"What's up, babe?"

"Hmm~"

The stick was placed right in front of his vision.

"YOU'RE FUCKING PREGNANT?!"

"Language! Kou is around!"

"A-Are you serious?!"

"Well, I tried the test 3 times and it all came back positive."

He smiled brightly, wrapping his hands around his wife. She explained to him that she will visit Shinobu when the time comes to check the gender, of course notifying her that Y/N was pregnant so as to not surprise her with a big belly. Kanroji HAD to know that her best friend was pregnant again, calling them 'bunnies'. She'd often visit Y/N just to check up on the growing Kou and belly of her friend. Y/N strolled along with Kou, holding his small hand as they walked. He noticed his mother's belly grow bigger each month, rubbing on it as he innocently looks up.

"Me, big brother?"

"Yes, you're going to be a big brother!"

"I want sister!"

"Maybe, a sister is in here! But we have to check."

"Yay! Kou wants a sister!"

The young boy waddles around excitedly, greeting folks around the village. Funny enough, Kou was very much like Haganezuka. He'd hug her belly if there was an 'enemy' around, which was usually an elderly folk. Uzui was told to help her again with patrols, playing around with Kou as he walked by Y/N's side.

"I noticed that your belly looks a bit bigger than usual."

"Are you calling me fat, Uzui?!"

"N-No! I'm just wondering if it's a big baby or... twins."

"Hahah~ I don't think I'm that lucky to have twins."

Congratulations, Y/N! You have two baby boys!

Y/N stood quiet, sitting on the chair as Shinobu shared the news.

"I-I'm having twins?"

"Yep! Who would have expected that you'd have another two boys? You guys sure are going at it since marriage, huh."

"H-Hey!"

Kanroji bursts into the room,

"Y/N!!!! BABIES!!!"

"Twins, twins. I have twins."

"Twins?! I bet they're going to be cute little ducks that waddle around with Kou!"

"My children are not ducks, Mitsuri."

She went back home to share the news with her husband, which he was delighted to hear. Also, he mentioned that he bumped into Uzui and was given some scrolls. Y/N squinted her eyes in annoyance, looking at the scrolls.

"Don't you dare ask me to do those things in those perverted scrolls. I don't want to wake my sleeping babies inside."

"I did not say to do all these now. HAHAHA! Y/N! PERVERT!"

"H-Hey! Who's the one who gladly took Uzui's secret scrolls for his own pleasure?!"

Well, the couple had a good relationship for as long as they would live. Months went by and she went into labor. Good thing is that they knew it was nearly time and was near the butterfly estate. Kou stood outside the room, eyes wide in fear as he hears his mother scream in pain. Even the sound of his father screaming was traumatizing. He hears the cries of two smaller beings followed by the door opening. In Y/N's arms, there were two babies that looked alike. They had her features and were adorably snuggling up to their mother.

"Kou, these are your new siblings. Hiro and Shiro."

"A-Are they my sisters?!"

"Ah... they're your brothers."

WAAAAHHHHHHH 

Kou started crying at the fact that his mother could not produce a sister. Haganezuka sighs and pats his head,

"Son, I promise you a sister in no time."

"H-Hotaru! Bad!"

Shinobu chuckled as she pointed at the two of them.

"You guys sure are bunnies."

Kou's sudden loud cry caused Hiro and Shiro to burst out wailing. The older brother quickly stopped, noticing his siblings crying because of him. He waddles his way up the bed, hiccuping as he reaches his arms out to stroke his brothers' faces.

"Kou will protect you. We will protect sister!"

Y/N sweatdropped, looking at Haganezuka smiling brightly as their children wish to have a 'sister'—meaning more lovemaking and usage of Uzui's scrolls.