When your underwear looks this good, who needs a dress?
Boxers, briefs, bras, panties, corsets, garters, stockings, socks, and other forms of underwear. In more prudish times, these were known as "unmentionables". This also made them
Forbidden Fruit, and thus the subject of numerous tropes. Needless to say, many of them are no longer
literally unmentionable.
Heck,
Queen Vicky loved to wear racy underwear under her dresses, which may or may not be where the name "Victoria's Secret" came from.
Now while a lot of these can be
Fanservice, or outright
Fetish Fuel, just as many can be
Played for Laughs.
Related:
Tropes: