A quick search on the internet for "boudoir images"
will give you a good range of ideas, from long dresses to no more than a smile,
but plenty of in between. Here are a few images as inspiration for what to
bring.
Shirts do a great job of cheekily revealing as much or as
little as you like
Gemma styling it up with a floppy hat, shirt and tie.
How about rocking it up with a leather jacket?
A classic lacy camisole top and hot pant shorts
Classic bra and knickers lingerie
Or just a hint at nothing at all (we call this implied nude)