Sister-in-law caught masturbating

I had no clothes.

My clothes are dirty, so I just thought I'd borrow a T-shirt.

But what are you doing in it?

It's embarrassing.

I had some spare time.

So...

So I decided to have some alone time.

Hmm, what does alone time mean?

You're going to make me spell it out for you?

Yes, please.

I was watching some porn and masturbating.

What kind of porn?

Some porn.

Can you show me?

That's me and my wife.

Your sister.

Those are our private videos.

Not so private on the internet though, are they?

Touche.

It looks like me and you.

What does that mean?

It's okay to fantasize, isn't it?

I suppose it is.

What would she do if she found out?

Well, I don't know, and I'd rather she not find out,

if you don't mind.

Okay.

Well then, how are you going to keep me quiet?

Make you dinner?

Make me something.

Considering your cough is getting harder,

I suppose I could do something with that.

I think that's a good idea.

Promise you won't find out?

I promise.

What do you think I look like?

How many times have you thought of us being together?

Me and you?

Yes.

Yeah, still quite a lot.

I'm not sure if I'm going to be able to do it.

...