The Bachelor Machine is a collection of erotic science fiction short stories by M. Christian.
It was first published in 2003 (ISBN 1-931160-16-3) by Green Candy Press; the book is introduced by Cecilia Tan.
It was republished in 2010 by Circlet Press (ISBN 978-1-885865-58-8) 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.