When shooting boudoir, there is a couple of things both the model and photographer should pay attention to in order to get a good result.
Shooting boudoir is actually not that difficult, as long as you pay attention to the details. From the photographers' point of view, you should always start with checking out the location, by showing up in person or searching for images online.
“Black and white lingerie is always safe. If there is talk about other colors, make sure they'll match the surroundings. I would for example not recommend pink lingerie against a red background.”
As these shoots often take place in hotels, you'll normally be able to see which colors are in play, and where you'll find the best light by visiting their website.
Although I do prefer to shoot boudoir in natural light, I always bring a couple of speed lights or battery driven strobes in addition to reflectors and diffusers. Both the image above and below are lit by window light in the front, and a fill in flash from behind. This is a matter of taste, of course, but I generally prefer to have my boudoir images evenly lit and quite bright.
If you haven't done much boudoir before, it could be a good idea to look at boudoir images with poses that you like, and use those as a starting point for your shoot. If you aren't working with a professional model, you should show her the images as well, so she can see what you'd like her to do.
You should also discuss the wardrobe with your model in beforehand. Black and white lingerie is always safe. If there is talk about other colors, make sure they'll match the surroundings. I would for example not recommend pink lingerie against a red background.
Finally, make sure the room has a decent temperature. If it's freezing cold, your model won't be able to do her best, and it will affect the end result. Turn the heater up, or bring your own if you think it's needed.
Having all that set, it's time to shoot. Don't stress. Communicate. Shoot in short sequences, just a few frames before you check the result. If your model needs to build up confidence, show her the best pic so far. If the pose needs to be ajusted, show her the pic and explain exactly what you'd like to change and why. This makes it much easier for her to participate constructively in the shoot.
So, what about the model?
If you're a non professional model and new to boudoir, there is a couple of things you should think about before showing up for the shoot. Like what lingerie to wear. My first advice is to bring good quality to the set; it will pay off in the end result. Nickers bought at Wish for a penny is ok if you shoot for Wish, but only then. Aim higher.
Discuss what you'll wear, hair and makeup with the photographer in good time before the shoot. This way you avoid misunderstandings, and it allows him or her to start planning for example props and other things in the scene.
On your way to the shoot, make sure you don't wear clothes that will leave marks on your skin when you change for lingerie. These marks tend to stay for quite a long time, so use loose clothes, and don't tighten your bra to hard.
One final tip: If you haven't posed for boudoir before, search for boudoir images on the net and rehearse poses half an hour at home. You'll be glad you did!