Under Control by Victor Bruno

Paul Mansel has been in servitude to Gloria Van Meer for six months, enduring various torments and humiliations. Over time, he has developed a deep admiration for her, accepting his role as her slave as natural. They travel to America to visit Gloria's friend, Mrs. Dupont, who has created a slave-girl farm on a secluded island. Gloria plans to establish a similar farm for male slaves, with Paul as a foundational member. While this plan unfolds, Paul continues his servitude among the female slaves owned by Mrs. Dupont, undergoing a transformation into a female.