Maiesiophilia (May-see-oh-phee-lee-a) is a sexual fetish (paraphilia) that consists of a person who is sexually aroused by a woman's pregnancy, or by pregnant women. There exists a great deal of pornographic and devotee material on the internet and on video in sex-shops. Maisiophilia is not illegal, and has varying degrees of social acceptance around the world. It is different from pedophilia in that the object of desire is not the fetus (foetus), but the expectant mother.
Like all sexual fetishes and sexual orientations, causes for maisiophilia are unknown.