Recently a famous mormon, Lindsay Stirling, wore a dress to a large event. Her dress does, in fact cover her body, but the dress uses large amounts of skin colored cloth to give the appearance that she is wearing a very sexy dress that shows her body off in the extreme. The skin colored cloth is tight and is a good match to her own skin tones, so there is nothing obvious about the charade.
No matter what else one says about it, the dress is clearly designed to entice. In fact, it is designed to appear downright sexual.
And how can it be designed to appear sexual and to be enticing, and yet be modest?
There is no such thing.