What is BDSM?
BDSM is a pattern of human sexual behaviors involving Bondage & Discipline, Domination & Submission, and Sadism & Masochism. This guide introduces the basic terms in the letter circle, emphasizing SSC and consent-based practices.
Core BDSM Terms in Letter Circle
Domain: Dominant
A Domain is the dominant role in D/S dynamics, focusing on psychological control and safe boundaries. Understand their responsibility in SSC framework.

Domain falls within the BDSM paradigm, under the category of Domination & Submission (D/S). This role involves guiding consensual power exchange, ensuring activities adhere to SSC principles.
Understanding S/M dynamics
In BDSM, S represents the Sadistic role, while M represents the Masochistic role. These two roles frequently appear together within the BDSM community, based on the principle of consenting adults engaging in safe activities within clear boundaries.
S/M: S/M stands for Sadism and Masochism, a dynamic where one gives pleasure (S) and the other seeks it (M). Activities should align with SSC framework to ensure emotional and physical safety.
Safe Practices in Letter Circle
Key to any letter circle practice is adherence to SSR.
SSC stands for Safety, Sufficient Information, and Consenting Adults. This framework ensures all activities are conducted within mutually agreed boundaries.