Ok beedeejay, which part of London do you live ? if you want to link up with Filipina's you can find them normally at parties over the weekend, down in Morden area, Merton, Mottingham, Acton, around Queen Mary's Hospital Roehampton, you have to get in with some of the T n T Filipinos in the London odd job scene.
You can also look on Gumtree, you often see them with ads on there, if youre looking for swingers parties, there are a few around the South Western area of London.
SW18, SW19 those sort of areas, contact Willieboy63@yahoo.co.uk, he is the resident swingers guru, he might be able to put you in the right direction, also he knows where lots of single Filipina's who are working in the city hang out.
You have to meet them casually at parties, don't make it so obvious what you are after, just chat with them casually, who knows where it will lead, best of luck mate, there sure are some beautiful ones, if you get in with the right parties.