Scientists from McGill University Health Centre in Montreal, Canada used the method of thermal imaging to record baseline temperature change in the genital area as the definition of the time necessary for sexual arousal.
foreplay |
In popular culture this form of cold temperature play is frequently shown as foreplay to suggest sex with a flair of kink/interest but which may not be classed as BDSM - see movies such as Do the Right Thing, and 9½ Weeks.