Does anyone know how to share one database on AGSQL across two or more TGP's?

For example, a gallery submitted at http://www.fetishmale.com would also appear on http://www.cumsoda.com and vice versa?

I know its possible but, i cant find any information on how to actually do it.

Has anyone on GWW successfully done this and, if so, how? LOL

Regards,

Lee