Forced bi is a BDSM practice where a dominant compels a submissive to engage in sexual activities with someone of the same sex. There are many other names for forced bi, including "coerced bi," "encouraged bi" or—the long-form term—"forced bisexuality."
A dominant may start a forced bi scene in various ways, depending on their style of domination. They may be harsh with their submissive. For example, they could order them to participate and humiliate them by judging their desires. They may also take a much softer approach, enticing their submissive with encouragement or gentle teasing.
During a forced bi encounter, the submissive continues playing the submissive role while the new person takes on the dominant’s role. The new dominant may anally penetrate the submissive with a penis or strap-on or force the submissive to give them oral sex, for example. The submissive’s regular dominant partner often watches the sexual encounter unfold. They may even suggest ways the new dominant could interact with their partner, although they are rarely active participants in the scene.
Forced bi scenes are a way for dominants to assert their control over their submissives. They also give the submissive a chance to show how well they can follow their dominant’s orders. A dominant may also use a forced bi scene as a form of humiliation play. Many people enjoy forced bi because it reinforces their roles in a BDSM relationship. Some submissives also enjoy the idea of being "given" to another person and used for their sexual pleasure. For some submissives, forced bi can be a safe way to explore their sexuality within the boundaries of a straight relationship.