【FLONTIER COMICS】This is just sex education! ～The Secret Sex of Stepbrothers and Sisters

[I decided that the only person I would give my first time to was my brother].

I never thought that I would be the one to receive my sister-in-law’s Hajimete.

It was yesterday that I was reminded of it.

Using my brother’s body as a teaching tool, teach me health and physical education!

My sister, Yuri, attends a prestigious nursing academy.
I thought I was well on my way to becoming a nurse, but I was wrong.
It seems that [when it comes to men’s bodies and the like, my mind goes blank].
But what about using my body as a teaching tool for practice?
Is it okay for siblings to do that? I’m sure you’ll be able to find something that works for you.

My sister came home before I could formulate my thoughts.
My sister seemed to have forgotten about last night’s promise.

I was secretly puffing out my chest.

“Oh, um, …… big brother. Tonight …… health and physical education class, please ……

I nodded, letting the words wash over me.

I wonder what will happen to me tonight. The thought of it made my heart beat faster. ……

In order for my sister to become a great nurse, my brother’s overly aggressive sex education begins!