Sisters on the pull

>>Three sisters were always going out on the pull every weekend but
> > never
> > > >seemed to have any joy meeting anybody.
> > > >
> > > >One week they decided it was because of the elder sister's big
> > feet.
> > > >So that week, Fanny the eldest, stayed at home.
> > > >
> > > >Sure enough, the other two pulled a fella each. On the way home
> > one of
> > > >the men said, "Bloody Hell Girls, you haven't half got big feet!"
> > One
> > > >sister replied, "That's nothing mate, you wanna see our Fanny's,
> > > >they're massive!".