Big Sister Wants Big Brother

I've been away at University and now back in my home town. My younger brother who's 19 went to work for my dad so has always lived at home and by all accounts is quote a popular figure.

I was out with the crowd I used to know and one of the girls in the group referred to my brother as MetricMan, and laughed but she wouldn't explain why as the night wore on others were talking and then someone said that there was a rumour going around that my brother has a 20 inch cock, I just laughed, everyone laughed then the girl who I was with earlier that's why we call him metricman, it's 20cm
I gulped that's 8inchs . What a sick person I am I was immediately wet between my legs and so horny I went one foot in front of the other got to the ladies and rubbed my pussy until I came.

That's it that's my confession I want my brothers cock. It's not just about size it's the fact he's shagged all the local girls and I want some of it.