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"Erotic sexual denial is the practice of refraining from sexual experiences in order to increase erotic arousal and/or tension. The prohibited experience can be narrowly or broadly defined and banned for a specific or indeterminate length of time depending on the practitioner. The experience withheld can be any favored or desired activities, such as specific acts or positions, provided it is something the practitioner wants. Erotic sexual denial is commonly used as sex play between intimate partners, but it can also be indulged in as an individual practice."
See too: Olivier Mosset, Karin Sander at lange + pult, “Seven Reeds” at Overduin & Co.