My Family Is Caught Up In A Sexual Web.

I read a story recently about a young lady who massaged and fucked her 2 brothers. Now i'm not using that story to justify what i'm feeling but some of those dramas are also in my family and i am dying to be a part of it.
My parents have 3 of us, 2 girls and one boy. My father is an overly protected maniac who never allowed us to go anywhere. Not even my mother he allowed to do things on her own which bothers me how she obeyed him like a little slave.

We have no friends and no other close family members to enjoy our life with, it's just us.

Now my family drama all started one day when my older sister (22) caught my mother fucking my 18yo brother and nearly fainted. When she stumbled upon my mother and my brother fucking my mom cried and begged her not to say anything.

But she could not keep her mouth shut which is why she told me.
She asked our little brother when and how did that all started.?
He told her he caught mom masturbating one day and peeked on her till she finished off herself. He said days later when he and mom were alone she came into his room and told him she knew he were spying on her while she masturbated. He tried to deny it but he quickly gave in when she playfully wrestled him to the bedroom floor and forced his dick out and sucked him dry that day. My mom let him know that dad's diabetic condition have caused his erection to only last for a few minutes and is getting worse.

She said after hearing all those details from my brother her pussy immediately went on fire but she could not make it know to him.
She could not contained herself when she finally make an advance at him one day when the horniest feeling got over her. She then fucked him hard one evening when no one else were around. She said mom had suspected and asked her if she had done anything with him?
She only replied to her "we are now even" after which mom turned away with teary eyes.
Now after hearing all that myself i decided to watch carefully for one of those moments when he would fuck either of them. I then learned that mom is going to his room in the wee hours of the morning when everyone is fast asleep. I noticed when she got up and i quietly snooped to see her sliding into his room. i didn't hear any sound of them fucking but knowing he was fucking her at that moment makes me get very horny.

I wonder if i'd ever get a chance to fuck him too?... I really want to.