A few weeks ago my sister visited me over the weekend

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I picked her up with the car and we drove to my Home, after 2 hour we arrived.
I live on the 3rd floor at the top, when we got upstairs I first had to find my key.
While I was looking in my pocket I heard her zipper, looked over at her and saw her pulling down her jeans and thong.
She then took a step back and stretched her ass towards the neighbor's door. Without warning, she started pissing.
It was a thick, yellow beam that hit the floor and the doormat.
She peed with such a pressure that it splashed a much, then she took another step back while pissing. Now it just hit the doormat. It started to foam and bubble on the mat.
When I found the key, I carried our bags in.
Then I got out and she was still pissing and flooding the mat, the doormat was soaked and the yellow juice ran out the side.
When she was done she groaned in relief.
Wiped her pussy, ass and shoes clean with Tissues and stuffed them behind the neighbor's shoe rack.
Fortunately it was late evening and no one saw her.
As she pulled up her jeans, she looked behind her. Grinned and said: Oops
I replied: I know you.

If i have more time i will write another part,
where we went to the cinema on that weekend. 

[pguy 1]

Great story, definitely looking forward to part 2