Modelling as a profession was first established in 1853 by Charles Frederick Worth, the father of haute couture. Types of modelling include: fashion, glamour, fitness, bikini, fine art, body-part, and commercial print models.
After the end of her marriage to Mickey Rourke, Otis gradually resumed modeling. In 2000, she became one of the oldest models to appear in the Sports Illustrated swimsuit issue, although in 1989 Christie Brinkley who was 34 and Cheryl Tiegs at 42 were featured prominently in the 25th Anniversary edition of Sports Illustrated.
Shortly thereafter, she began recovering from anorexia nervosa. As part of her recovery, she experienced a weight gain that offered her the opportunity to work as a plus-size model, most notably as the face for iconic Marina Rinaldi clothing (of MaxMara Group) and in commentary and editorials for Mode Magazine; in 2003, Otis became a spokesperson for National Eating Disorders Awareness Week.