Link to last page on a paged post

Hi,
I have some posts divided in multiple pages using <!–nextpage–> tag and link_pages() function.

There is a way to have a link to the last page of a post?

For example, I have this article:

Post 1
Paragraph 1
<!–nextpage–>
Paragraph 2
<!–nextpage–>
Paragraph 3 (last paragraph)

If I use “link_pages()” I have a link like this:
Page 1 – Page 2 – Page 3

I would have a result like this:
Page 1 – Page 2 – Last page

Or, at least, like this:
Page 1 – Page 2 – Page 3 – | Go to last page

Anyone can help me? I don’t know the sql query that use link_pages(), I think that it is possible in some way… but what? ??