She wore her sexuality on her sleeve. The Fountainhead and Atlas Shrugged have tons of bondage imagery, rape, sexual assault, and physical abuse. She clearly liked being dominated and her warped worldview led her to view her own personal sexual fetishes as ideal femininity.

Along the same lines, Rand used ideology to justify having affairs. She literally believed that the apex specimens of Objectivist Obermensch capitalists would be inherently attracted to each other. This drove her to pursue an affair with one her personality cult's top disciples, Nathaniel Branden, with the full knowledge of their spouses. When Branden ended the affair, she didn't take it well at all.