"Gag, a common tool in BDSM relationships, is used to block the mouth or keep it open for an extended period, preventing the wearer from speaking. In BDSM activities, only the submissive wears a gag, while the dominant does not. Wearing a gag deprives the individual of the ability to speak, creating a sense of humiliation and helplessness."
Looking at the black ball in her hand, Lisa felt amazed at its magical effect.
Squeezing Sacha's mouth shut, Lisa forcefully inserted the gag into her mouth and fastened it behind her head.
"Mmm... Huh~ Oh~ Mmm..." Now, Sacha couldn't utter a word, only emitting muffled sounds. Saliva dribbled from the corners of her mouth, creating an eerie sight.
Lisa found it fascinating, but Sacha was suffering. Her facial muscles felt sore, and the gag prevented her from swallowing saliva. She had to keep her mouth open, drooling helplessly, feeling extremely uncomfortable.