I'm not RAF - just a normal civvy but just for the sake of supplying an opinion...
Why do some people think that anyone else wants to know or has interest in what or who they like to have sexual relations with? People that don't care about others sexuality have the right to remain ignorant.
I can't recall ever having someone say 'I'd like to work in your laboratory - by the way I like straight sex but occasionally some light to medium BDSM doesn't go amiss - I'm open to a little mutual DIY and I don't mind some web cam action - I've got GCSE's in chemistry and maths'.
There's a difference between an employer being equal opportunities and actually wanting to bleedin' well have it discussed.
This may come as a shock - but not everyone is interested in what a unique and beautiful little snowflake you are.