No. The sexinesa should be "unintentional". For an example, Justin Timberlake is drop dead sexy in his well-tailored suits.
This gentlemen only ordered jeans as skinny as possible and a shirt as slim-fit as possible to show off. When he appears like this at my office, he would be sent home for inappropriate clothing. It is too obvious, maybe American taste. You will see the most sexy Italians, Spaniards, Portuguese, oozing 100% sex and no one of them at all in tightest-tight clothes.