I'm a fan of Fredericks of Hollywood..they have all of the sexy lingerie, but also really cute AND comfy underwear and other cute stuff. And they have a wide variety of their styles available in plus sizes.
Great thread! I did not even know that it is possible to buy plus sized lingerie of this type. This plants an idea in my mind for a future reward. I am just not sure if it should be a reward for me or DH!