hate to put a downer on this, but is 'really tight fitting and sexy' appropriate for work?
One suit idea
The other thing to do is to get a dress&jacket suit, as these often look sexier than a skirt without actually being any more revealing.
one dress
another dress
Or get a suit in a bold colour - even if it's no clingier than a black one of the same cut, a red suit, for example, will be much more attention-grabbing.
Have you looked in Zara?