Katya is one of 24 women and 8 men serving as sex therapists who are to provide shore leave for the staff and crew of the SOLAR WIND on a 20-year voyage to the asteroids. Katya is also a Clinical Psychologist from Sweden. Sex therapists are part of the Psychology staff responsible for research into the affects of long term space flight on the staff and crew and their well being as a community. Nippon-American built the Orbital Complex or OC (oh see) at L5 and the SOLAR WIND (spacecraft) for the UN. The UN wants Nippon-American to tag asteroids for future use. The company wants to orbit asteroids behind the moon at L2 for the lunar colony and Orbital Complex or OC (oh see) at L5. Katya falls in love with Alex, the Czech in charge of the Nuclear Physics staff for the UN and the Maintenance Crew for the company. Alex has an affair with Iliss, a woman PhD on his Nuclear Physics Staff. Iliss is a married woman going on the voyage with her husband, Jack, the head of the Astronomy staff for the voyage. And Jack is having an affair with Miko, Alex's ex-mistress and Katya's best friend. Miko is the head of Medical Research for the voyage. Later, Katya falls in love with Iliss. Falling in love twice complicates Katya's life and job. How do you hide affairs from 320 people on a spacecraft the size of a city block?