Rape sister but will she recognise me (2)

Rape then another guy turns up So I put blame on him , her BIL

If you read part one I was (without her knowledge) fulfilling my disabled sisters rape fantasy, when her brother in law came to find out why she wasn’t answering calls that night. It was because she was out of the wheelchair spread eagle on her husband’s desk.
I made a decision, I don’t know why but I didn’t drive off I went back to the house and watched from a distance.
The power had been cut so her BIL was using his phone’s light to make his way through the house. He obviously had a key to the front door for emergencies.
I saw as he entered the study. Then a strange thing happened. The phone light went out and then there were flashes. Flashes from a phone camera. The dirty bastard i thought (ironically).

He was taking pictures of his naked recently raped SIL.
what happened next gave me mixed emotions. As I got nearer to see what was happening I firstly realised that there were no sirens wailing signalling that he had called the cops. Secondly as I peered through the window, I realised that he wasn’t helping her up he was helping himself. He was between her legs face in her pussy eating her out.
I hadn’t come in her so he never got that treat but he was going for it licking and poking fingers into her.
Kay was moaning trying to shout but still gagged by the robe cord.
After a few minutes he stood up and unbuckled his pants then as they dropped he took ahold of his cock and entered her. He pounded her, calling her names and slapping her tits.
I’m guessing he would call the cops after he had had his way.
I must admit, I was super turned on as well as annoyed.
Thinking on my feet I made my way to the back door and I took her phone from
My pocket and grabbed a flash light I’d seen earlier.
As I walked in to the study I shone the flashlight into his face and shouted in my fake Boston accent “FREEZE”

As he was blinded he couldn’t see me. He thankfully assumed I was a cop. Instead of shooting him I took a photo of him balls deep in Kay.
Evidence!
I moved behind him and poked him in the back with the phone making out it was a gun.
Had to think fast.
How now do I get away.
He was still in her.
I grunted “ one step back sir”
His hands were up in surrender.
I said “jerk off “

He exclaimed “ Pardon !”

I said “ you haven’t cum yet,
Jack over her, maybe her face”

With the flashlight shining in his face I watched as he slowly got hard and then began to jack off
“You’re no cop” he spat at me.
So I just said “No , so I have no worry killing you “
Bizarrely this made him jack off quicker.
Within a minute he shot a load over Kay’s face and hair.

I poked at him and said “
Now you have left your DNA and Kay has your photo of you fucking her, you better get out of here. And don’t ever come back.

He ran out as fast as a man can with he is pants around knees.

I was now trying to work out where do we go from here.