Depending on the theme or direction of the video – wear something you feel sexy in. You will feel most confident and look best on camera when you feel sexy. Pick some lingerie, a skirt, some tight leggings, a bathrobe or a sexy costume. I would generally recommend finding articles of clothing that will not be too tight and leave marks on your skin, as it will be very visible on camera, you may also want to make sure to be very well hydrated that day to help eliminate marks on skin from clothing.