For example, scotophiles may prefer to have sexual interactions at night with the lights off. They may feel sexually aroused when in dark spaces and have fantasies about having sex in dark places.
It’s quite common for humans to have a preference for sex with the lights off rather than on. However, the preference must be especially strong to be classed as scotophilia. However strong this preference is though, scotophilia is a fairly manageable paraphilia which can usually be accepted as part of a person’s sexuality. If scotophilia does become problematic, therapy or hypnosis may be beneficial.