Finding the right synonyms for the term "sex machine" can be a bit tricky as the word has gained a lot of notoriety in recent years for its raunchy connotations. Some of the more polite options for sex machine include love machine, pleasure machine, intimacy device, and bedroom gadget. For those who like their language to be a bit more daring, options like fuck machine, orgasm device, and sexual robot can be used to describe a machine designed to enhance sexual pleasure. Regardless of the wording, it's important to remember that these machines exist solely to provide pleasure and should be used with respect and safety at all times.