Kisaki-san looked at us. “This determination you have now, the promises you’re making when you’re all excited from your love and passion... They don’t mean anything.” The gaze she directed at us gradually focused on Orihara-san. “Hime-chan...you’re already twenty-seven. Momota-kun is only fifteen. You’ll never be able to bridge that age gap. If you break up in the future, you’ll be the one who takes the most damage. You understand that, right?” Her tone was stern, but her voice had a kindness to it.
Ultimately, Kisaki-san is probably worried about Orihara-san. As her older sister and a member of her family, she’s worried about her household’s youngest child. I believe all of her sternness is born from kindness. As I was thinking that...
“What? What are you even saying? Why are you assuming that we’re going to break up?” Orihara-san said unexpectedly. “Also, what do you mean about taking damage? What damage?”
“I mean...your value as a woman will be damaged. Breaking up in your twenties is different than breaking up in your thirties.”
“What are you talking about? I’ve never even thought about my value. Onee-chan...aren’t you just projecting your own past onto us? Don’t decide that we’re going to fail just because you did,” Orihara-san said bitingly. The statement was harsh and totally unlike her. It seemed that being pushed into a corner had made her pretty emotional.
“I-I’m not just talking about my own experience! I’m talking about the world in general,” Kisaki-san objected after also becoming emotional. “If all the couples and marriages could work out, then no one would get a divorce! Do you know what the divorce rate in Japan is? Do you know it’s over thirty percent? That means that for every ten married couples, three will be getting a divorce!”
“And seven couples don’t! The people who don’t get a divorce are the majority!”
“Th-That’s just splitting hairs! Why don’t you get it, Hime-chan? I just don’t want you to become like me!”
“That’s just meddling in my life! I’m already twenty-seven years old, so don’t treat me like a kid!”
“Of course I’ll treat you like a kid! Your romance is like a middle schooler’s! You’ve been dating for four months already, and you still haven’t slept with each other!”
“What?! Th-That has nothing to do with this! I’m different from my slutty milf of an older sister, who does it on the first day she meets someone!”
“Y-You’re calling me a slutty milf again?! Hime-chan, you dummy!” Their emotional argument gradually became more and more childish.
Faced with the sight of two sisters, one twenty-seven years old and the other thirty-four years old, getting upset and insulting one another, I didn’t know what to do. Even so, I couldn’t just leave them alone. But right when I was thinking of how I should stop them, it happened. Right in the middle of their heated argument, Kisaki-san suddenly grimaced. Then she put her hand over her mouth and ran to the bathroom.
“O-Onee-chan?!” Panicked, Orihara-san chased after her and I followed. Kisaki-san hadn’t even closed the bathroom door; she was squatting down and facing the toilet as she vomited. “Wh-What’s the matter, Onee-chan? Are you okay?” Orihara-san said as she rubbed Kisaki-san’s back.
“Th-Thank you, Hime-chan. I-I’m fine...”
“You don’t have a hangover, right? Are you sick?”
“No, it’s not that. It’s just something that happens during this stage,” Kisaki-san said while looking pale yet a little embarrassed.
“This stage?”
“Y-You don’t mean...” Orihara-san and I guessed it at almost the same time.
“...Three months,” Kisaki-san said with great difficulty as she touched her stomach.
Three months. I didn’t even have to think about what she meant by that. When a woman who’s dating someone with marriage in mind suddenly throws up and says “three months,” there can only be one answer. Three months—in other words, she’s in her third month of pregnancy.
“H-Huh...” Orihara-san had a complicated expression on her face as she looked both surprised and confused. “That’s, um... C-Congratulations?”
“Th-Thank you, Hime-chan...” Due to the timing of it all, it ended up being an odd celebration between the Orihara sisters.
“...Huh? What? But, Onee-chan, you said three months...” Orihara-san said like she realized something. “Onee-chan, you count how many days you’ve been pregnant starting with the first day of your last period, right?”
“Y-Yes, that’s right.”
“Then, if you’re three months pregnant, that means the day you...were blessed would be around the same time you met Shigeru-san, wouldn’t it?”
“...Yes, it would,” Kisaki-san said, awkwardly looking away. However, she then suddenly raised her face. “I-It’s not what you think, Momota-kun!” she shouted, protesting desperately. “Shigeru-san properly tried to use protection! Your father isn’t some irresponsible man who goes bareback on the first day he meets someone!”
“...”
“It’s just... You know? I-I kind of forcefully... How should I say it?... I went at him no holds barred.”
“...”
“I was thinking I wasn’t going to let this chance get away from me, so I came onto him with all of my might... It was a really unsafe day for me, but I lied and said that it was a safe day...”
“...” I no longer knew what to say or how to say it. My thoughts and emotions were so overwhelmed that I was completely at a loss. It was like I had frozen up and overheated at the same time and had reached a state of nothingness.
I’m Momota Kaoru. I’m almost sixteen years old. It looks like I’m going to get a new mother at about the same time, and in a crazy turn of events, it turns out that woman is my girlfriend’s older sister. Also, it looks like I’m going to get a new little brother or sister.