Inside Désirée Cousteau (1979)

Young, beautiful, and innocent Desiree enters the work force to find great difficulty in keeping men disinterested in her charms. She starts out as a reporter when she meets "Mr. Ryan", a Presidental hopeful. He gives her the "scoop" of her life which ends up in an usual pool sequence! Desiree then tries another job as a door to door saleswomen with excellent results when she discovers her first client, a very luscious , hot redhead. She sells all her merchandise and ends up in a menage-a-trois when the husband enters. Trying to keep away from sexual encounters and to find a straight work, she finds herself a job aboard a luxury yacht only to discover herself involved with two porno stars, John Homes and Serena. Seeing that no matter what she does ends in sexual encounters, she goes after a career in porno films and becomes an international sensation. And lives happily ever after!!!