PARIS — Sexy, steamy and striking: Giambattista Valli’s spring collection for Emanuel Ungaro was all of those things and more. And that’s perfectly appropriate, because sensuality has always been the signature of the house. Using a hot palette of pink, orange and lavender, Valli created beautiful, daringly draped jersey and silk chiffon dresses, many replete with such trimmings as streamers and embroidered flowers. Here, his sultry dress detailed with a braid that morphs into a halter. For other wrapped and tied looks, see photospread The Ties That Bind.