I see there have been variations on this that I am about to post, but I want to see who will answer and what type of answers will be posted.
I want to know if you have ever:
1. Masturbated with your brother or sister.
2. Masturbated with them in the room, but you didn't know they were aware.
3. Watched them as they masturbated
4. Watched any of their friends
You get the idea. Let's hear it... As the replies die down, I will post some memories.