Wifes sister

I am so h**** for my wifes sister, it is wrecking my head. Every time I w*** off i think about her and all the nasty s*** I want to do to her. And not just normal stuff.

I want to pull her panties down and shove my tongue up her a****** and just lick it for ages. Then I want her to sit on my chest and p*** all over me before I f*** the s***.

I have a pair of her panties i stole last month and have came in them at least 40 times, they are stinking now.