philopornist
/ˌfɪlə(ʊ)ˈpɔːnɪst/nonce-wd.
noun
A person who loves or associates with prostitutes.
Origin
Late 19th century; earliest use found in Algernon Swinburne (1837–1909), poet and literary reviewer. From philo- + either porno- or ancient Greek πόρνη + -ist.