The Bachelor Machine is a collection of erotic science fiction short stories by M. Christian. It was first published in 2003 () by Green Candy Press; the book is introduced by Cecilia Tan. It was republished in 2010 by Circlet Press () with a new foreword by Kit O'Connell. The stories take place in a wide variety of settings, with an assortment of themes and widely differing tone, from grim to humorous. There is also a wide variety of sexual acts depicted in the work, including many which are not possible with modern technology, involving a wide variety of partners in heterosexual, bisexual, homosexual and sometimes non-human couplings. Plot summaries Some of the short stories in this collection include, "State", about a prostitute who is trained to behave like an expensive robot designed for sex. "Bluebelle" is about a police officer and his police vehicle (for which the story is named). His vehicle is also his sex partner. In "Winged Memory," a prostitute wears "whoreware," wearable computing equipment which includes a bracelet that charges cash cards and eyewear that cycles from green to red when a client's time is up. A man sells his memories (not unlike Strange Days)) in exchange for money to hire the prostitute. "Eulogy" is set in a future where humans are effectively immortal. In the story, a woman wants to perform oral sex on a man with a rare illness which is still actually fatal because the participants are bored with eternal life and miss their deceased friend. "Butterflie$" is the story of a computer hack which drains a victim's bank account while seducing them in virtual reality. "Everything But the Smell of Lilies," which concerns Justine, an expensive prostitute who has been surgically altered: thanks to extensive implants and modifications (such as rerouting of arteries and internal oxygen tanks), she can have her throat slit by a client who can then fulfill necrophilic fantasies on a body that can wake up again, save them from criminal charges, and collect a hefty fee. In this story, her pimp asks her to stage a distraction from a crime and act as a real victim, placing her in the hands of a paramedic with a taste for actual corpses. Lines of sexual orientation are blurred in "Fully Accessorized, Baby," where two women have sex, both using fully functional prosthetic penises (one also has a cybernetic arm made