From "Sousaku Imouto", or "A Manga About a Little Sister Who Is Constantly Being Caught Masturbating by Her Onii-chan"
It's already been exposed to her brotherShe made a loud noise today too...Eh, Um, I'm back.Ugh!?
W-welcome back, onichan...
You're early today...Backed from school,
went to toliet,
became horny,
and masturbated straight right there.He said he'll be late from home today...I've surpressed my voice so it shouldn't be exposed yet right...