She started feeling my cock over my undies. Those soft and smooth movements were making it hard for me to control.So I moved my hand from her back to ...er big bubble butt which was finely covered by that skirt. I squeezed her ass cheek hard which made her jerk towards me. She smiled and signalled me to stand up.I let her take the command as she was much more experienced than me. She too stood up and took her skirt off. She was wearing a purple panty. We both stood there in our undies. Then she. I’ve never thought of us as truly brother and sister; she has always felt more like an older family friend, a cousin or even a babysitter.By the time I started primary school, she had already moved on to secondary school. When I also moved to secondary school, she was at work. I guess I have always been a loud, annoying little brother, robbing her of the limelight. But currently, she was enjoying the awkwardness of my position.Although surely the easiest and most obvious thing for her to do. And I agreed to watch it with her.We both started to watch an adult video, in the video, a boy and girl were alone in swimming pool with underwear. Both were hugging kissing and was swimming, then the boy removed that girls bra, the girl hid her boobs with her hands and then revealed them slowly. The video continued for few minutes. As it was 6 o clock and my parent will come we suddenly closed the video and started watching a movie. From then I started watching sexy videos and some adult. As his cum gushed up inside her, her backside was inches off the bed and would remain suspended till that length of delight was slowly withdrawn. It was now time for a break, a wash-up and a coffee before giving a nod of approval to the statement. "Shall we begin again"."Your bum this time" was the statement as she applied liquid soap to the first erection. She smiled as she positioned herself, taking into her mouth the nearest cock. No bloke was going to get such a cock suck as he was for as.