Spectraphilia is when you have sex with ghosts. If I had to know about it then you have to know about it man. Sorry.
https://www.washingtonpost.com/religion/2019/07/14/she-says-she-married-pirates-ghost-she-wants-you-stop-calling-her-crazy/
Spy Glass by Kevin MacLeod
Link: https://filmmusic.io/song/4410-spy-glass
License: http://creativecommons.org/licenses/by/4.0/