The Klismaphilia reference article from the English Wikipedia on 24-Jul-2004
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Klismaphilia

Sponsorship the way you would do it
Klismaphilia is the paraphilia of deriving sexual pleasure from enemas.

John Harvey Kellogg is nowadays regarded as a textbook case of klismaphilia, although he was in his time viewed as a campaigner for health and sexual temperance. Many modern commentators now see him as a man who diverted his entire sexuality into receiving enemas and inflicting them on others.

Enemas are available as a service from many practitioners in the sex industry to cater to klismaphiliac desires.