From special spa treatments to private guitar lessons for adolescents, hotels are noticing the teenager set. The latest trend in the hospitality world is the teen lounge created exclusively for teenagers at luxury hotels. Read: no adults allowed. At the JW Marriott Starr Pass Resort & Spa, the Blur Teen Lounge was an instant hit when it opened in April. Traveling with an adolescent can be tricky, but the Teen Lounge provides a separate area for independent-minded teens to hang out and relax, while still on hotel property. Another big attraction? All the technology, like iPads, an Xbox 360, a Playstation 3, a 46-inch LCD HDTV, and a DVD library. Also in Arizona: the Fairmont Scottsdale Princess has an exclusive teen lounge called The Hang Out.