Don't know if this would be considered a fetish but

[Beck31]

I have a thing for big breasted British babes. The bigger the boobs the better.

 

[SparkyMark1961]

That would be the truth no matter what nationality they are.
Although a big breasted woman with that accent would be fun.

 

[pensivepoet]

I hear the Queen's go all the way to her knees~but that's probably not what you're looking for.