Shelley appeared in an ad for the brand Turtle Bax in 1976. Turtle Bax was a popular clothing company in the '60s and '70s and had come out with numerous ads during the era. With her back turned, Shelley modeled a cute pair of short shorts or hotpants and a matching top. Her outfit was finished with a cute pair of sneakers and knee-high socks. Notice Shelley's great legs and firm buns.