Growing up with hot older horny sister

(M45) From as early as I can remember my sister (3yrs older) was a hotty, and active from an early age. Which is the legal age here. I wld get off on the thought of her from time to time, I was the youngest of 3, ff, me, and the youngest of the cousins as well. Amongst all of us and our cousins I was exposed to sexual experiences early, not actually myself, just being around the older ones. Also have a cousin story to but save that for later. Back to sis, she wasn't shy either so filled my cup with plenty of eye candy, she worn some revealing clothes n pj's too. When I was 17 I worked and lived with her and her bf who owned a farm, it was the 2nd night being there, just got to bed when for the first time I heard my sister getting punished. Wht a fkn turn on, was hard in seconds listening to him pounding that pussy, she got louder and louder to the point of screaming and screaming dirty. Blew my load more than I ever thought I could. Tmrw nite cldnt cm quick enough. To let you know how loud she cld be, many years later, her now living in town , her neighbour's actually called the police one night thinking she was being attacked.. Embarrassing much... All true. Cousin experience to come