Ablutophilia is the experiencing of intense sexual arousal or satisfaction from taking a shower or bath. This term is derived from the Latin word ablutio, meaning a washing or cleansing, and philia, an intense liking of or attraction to certain items or activities.
More About Ablutophilia
The subject of what constitutes "normal" sex practices is quite controversial. Does loving sex in the shower make you an ablutophile? Not necessarily. Are specific attractions or fetishes a problem? Likely only if they prevent you from having a fulfilling sex life (as in the case where nothing else outside the specific attraction can achieve arousal).