Pleasure marbles
Definition
Pleasure balls – also known as Geisha love balls or Ben-Wa balls – are small, round balls that are inserted into the vagina for erotic stimulation or to train the pelvic floor muscles. In BDSM and sensual play, they are used to increase body awareness, stimulate subtle sensations, or build control and tension under the direction of the Dominant.
For a detailed explanation, see Ben Wa balls
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