I don't know why, but I've always been turned on by the idea of a very prim and proper, priggish type of man (such as a stern old-fashioned schoolmaster or Oxford Don type). I live in England and get wet when I see toffs and aristocrats. I love the posh upper-class voice because it sounds bossy and intriguingly also somewhat effiminate.
I guess i have a thing about upper class Englishmen, i.e. the privately educated type (think Eton, Harrow, Winchester, Rugby, etc.). Oxford and Cambridge can also have this too.
I've been fortunate to once have had a very bossy lover who met the above description (mother was a D'estes and his father Cheshire gentry). An Old Salopian. Spoke beautifully and used to love tying me up, whipping me and and buggering hte hell out of me! Wonderful!!