The good news for all of us is that there is no end to the amount of little black dress options, and they come in all shapes, sizes, materials, and silhouettes
Contemporary formal dresses are fundamentally ideal for this specific scenario
Mother, Farther, Sisters can do matching print outfit
But the list of drawbacks (the high price tag, the cost of shipping and returns, the $25 duty, and the hassle of having to go to the tailor because they come unhemmed) became too long for us to recommend these to a general audience
The lace overlay on this midi dress adds sex appeal, but it's still sophisticated enough for more conservative settings