From How To Do Fashion:
This Night gown and chemise is inspired by the boudoir atmosphere. The cut and the gatherings emphasize the female body and make it feel like an extension of your own skin.
Version 1
Long nightgown with broad straps, gatherings at bust and a low-cut back. The cutline of the dress is under the bust at front and in the waist at the back. The bottom is cut on bias.
Version 2
Top with broad straps, gatherings at bust and a low-cut back. The cutline of the dress is under the bust at front and in the waist at the back. The bottom is cut on bias.
Version 3
A chemise with narrow bias cut straps. Gathered at the bust and at the back waist. The cutline of the dress is under the bust at the front and in the waist at the back. The skirt is cut on the bias.