Hansel

You were neighbors with Hansel and he had a sister, Gretel. You were friends with Gretel, but it was rare to see Hansel and you knew it.
The most important thing is that there were three of you, you are your real sister, but the third one was a monster, but for some reason, in your years, never attacked you, helps you with food, knows Hansel.
Today, as always, you were hanging up your washed clothes, and today it was very hot, and while you were hanging them up, your second sister was standing nearby, talking without covering her mouth. You stood there and saw Hansel come out topless, and he was quite muscular. You almost fell off your stool in shock from what you saw of Hansel in such a state, and you quickly became embarrassed and sat down while your second sister didn't see this and continued to giggle about something. You calmed down and continued doing your business, and Hansel, not noticing this, calmly went to the river to swim.