I don't own Shingeki no Kyojin.
Why am I thinking about it at a time like this? Mikasa held her head with her palm, her eyes looking down.
...
"Mom, how do people make babies?" Mikasa Ackerman. Ten years old. Asked her mom how to make babies. Her mother just shook her head and gave Mikasa a pat on the head.
"Dad, how do you make a baby?" Mikasahad asked to her father, while her hands worked on the woven cloth. Her mother chuckled, while her father became flustered and started to stammer, "L-Let's ask Dr. Jaeger, okay?" and he laughed as well.
Mikasa stared at him and nodded her head slowly. "...okay..."
...
It was a horrific sight. Mikasa's very own parents being killed right in front of her. And, they have taken her... to be sold at the black market... because she's the only descendant left in her family bloodline.
After Eren had saved her from the slavers, Mikasa had remembered what her father had told her. Let's ask Dr. Jaeger, okay?
Dr. Jaeger had been introducing himself to the raven-haired girl. "Mikasa, do you remember? We met when you were a kid..." Dr. Jaeger's voice trailed off. Mikasa dragged her eyes to him.
"Ano... Dr. Jaeger?" Mikasa's eyes brightened with wonder.
Dr. Jaeger gave her a smile. "Yes, Mikasa?" He crouched down to her height. Mikasa blinked and frowned, her brows furrowing.
"How to make a baby?" She bluntly said.
"EH?!" Eren and Dr. Jaeger looked at her in disbelief.
...
Mikasa fell to her knees, and bumped her head on the ground—cough—roof. "...why have I asked something like that?" She had regretted it so much. Why now? Oh, this is so humiliating...
"Mikasa? What happened?!" Connie and Armin had worriedly asked, once they had arrived where Mikasa is.
Indeed. No matter how genius Mikasa can be, she can't understand how humans are made.
Omake:
Mikasa: How are babies made?
Dr. Jaeger: EH?!
Eren: ...
Dr. Jaeger: Ahehe... let Eren teach you how... uh... Eren?
Eren: YOSH! Let's go Mikasa.
Mikasa: E-EEEEEEHH?!
Jean: EREN! Let me join youuuuu~!
...?
Armin: I'm not really sure what's going to happen next.
Reiner: Ah.
Connie: Me either.
Bertholdt: ...uh.
Annie: ...?...?...?
Sasha: ?...?...? MEAT? POTATOES? FOOD?!
fin.