The Lydia Position Book7. The Lydia Position, #7

Mark initiates a romantic encounter with Hana, his charismatic Vice President of Public Relations, during a celebration marking the successful launch of Proteus' inaugural lunar exploration mission. Meanwhile, Lydia participates in an intimate threesome with two young technicians at Vance Holding's highly secure data center, nestled deep within Singapore's lush Mandai Nature Preserve. The Chinese Space Agency proposes a lucrative deal to Vance Holdings, offering exclusive adoption of Proteus's advanced AI guidance and control system for their entire fleet of spacecraft.
While visiting Space City in Beijing, Mark and Hana engage in a romantic liaison with the CNSA Chief Engineer's assistant, a beautiful bisexual young woman. After the widespread adoption of Proteus's technology, Mark begins to retreat into reclusiveness, dedicating himself to a discreet, groundbreaking project-venturing only on brief, three-week visits to Space City. After several years, Mark confides in Lydia that he is developing a new AI model designed to oversee and manage a human colony on Mars.
During Mark's three-year absence implementing his innovative system, Lydia continues her personal life, enjoying affairs with old lovers and new acquaintances including a Formula 1 Grand Prix race driver. However, she remains aware that the end of Mark's time in space is imminent and eagerly anticipates his return.