Bondage couple
For the most part, such bondage games end in sex. In contrast, bondage games between more casually acquainted players in the BDSM subculture frequently end in masturbation only, or in some cases include no sexual release at all.
Safety rules followed by couples in a committed relationship are frequently more subjective and trust-based. These differences can lead to culture clash where a couple with a history of bondage games together encounters the BDSM subculture: the couple can't understand the insistence on safewords, while the members of the subculture can't understand the focus on sexual intercourse.