MILAN — This spring season was one of the most superheated in years, with sexy looks rampant on the runways of Paris and Milan. Domenico Dolce and Stefano Gabbana always like their girls sultry, and their Dolce & Gabbana show this time was no exception, as they got into the groove with racy looks, some from their red vintage label. There was a Playboy Bunny–style bustier romper, along with frisky nauticals and even aluminum-foil dresses. Here, a tiny tube number, worn with arm warmers and thigh-high stockings. For more steamy fashion, see pages 6 and 7.