MILAN — There was a sultry side to the collections this season, as seductive looks turned up in unexpected places. At Prada, for example, Miuccia Prada played with glamour-girl looks; Eighties-style, power-babe bravado, and other racy elements in a fall collection that combined sex appeal, irony and wit. Jackets and tops had bold shoulders and puffed sleeves, while even a simple fur coat was sensually shaped. Here, that belted number over a revealing chainmail skirt. For more, see pages 4 and 5.