I think I heard my parents 'getting raw'
How did you hear them?
Because my room is next to theirs.
It is awful to hear your parents having sex but as long as they were doing it in private they didn't do anything wrong. It was bad but nobodies fault.
I was scared and shocked. I don't want them to do it again.
It's their business what they do in their house. If you don't like it you should switch rooms or sleep in another room temporarily.