Agalmatophilia
From wipipedia.org

Agalmatophilia is an uncommon fetish or paraphilia, also known as Pygmalionism after the Greek myth of Pygmalion.
In its most literal sense the term means sexual attraction to statues. This may also be extended to mannequins and/or dolls.
In a broader sense the term may refer to sexual fantasies about oneself and/or others being transformed into, or simply rendered as motionless as, a statue, mannequin or doll. Such fantasies may of course be extended to roleplaying.
There is a broad crossover between agalmatophilia and robot fetishism or ASFR (alt.sex.fetish.robots).