Sorry, honey, but I haven't worn a nightgown in years.
Like a diaphanous nightgown, language both hides and reveals.
It's like being a little kid again, parading around in a nightgown tucked into your underpants, believing it looks terrific.
She didn't mean to be sexy that moment, but even a winter nightgown couldn't hide that lovely outline. When will I outgrow my simple-minded fascination with the form she had happened to choose for her body? Never, I thought
Can I have a silk nightgown with rosebuds on it?
And you should not be out and about in your nightgown. There are Lightwoods wandering these halls.