[Wordpress issuses] aamirha on "Domain forwarding AND Map an Existing Domain"

I have a domain name called aamirayubi.com Through my domain registrar I have enabled domain forwarding to my wordpress blog - aamirayubi.wordpress.com.

My question is: If I purchase the "paid upgrade of domain mapping @ USD 13 per year", will all the subpages have their definite different URLS.

What I mean is, for example, if one clicks the "About" page, will it show aamirayubi/about or just show aamirayubi.com only?

Thank you.

The blog I need help with is aamirayubi.wordpress.com.

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