The Reckless Sex is a 1925 American melodrama film directed by Alan James from a screenplay by Travers Wells. The film stars Madge Bellamy, William Collier Jr., and Wyndham Standing.

Robert Lanning Jr. is sent by his father in Boston to his ranch in New Mexico to stop the employees from smuggling firearms across the Mexico–United States border. During the voyage Lanning Jr. picks up stage actress Mary Hamilton from a roadshow production of Uncle Tom's Cabin, but believes she is a child because she is in character as Eva St. Claire. At the ranch he and the Rurales stops the gun smugglers, and after he realizes Mary is an adult he successfully proposes to her.^[2]

• Madge Bellamy as Mary Hamilton
• William Collier Jr. as Juan
• Wyndham Standing as Carter Trevor
• Claire McDowell as Concha
• Johnnie Walker as Robert Lanning, Jr.
• Gertrude Astor as Lucile Dupré
• Alec B. Francis as Emanuel García
• Gladys Brockwell as Mrs. García
• David Torrence as Robert Lanning
• Helen Dunbar
• Walter Long