| 摘要 |
A sex toy that uses an enclosed, internal, mechanism of reciprocating weights to induce a back and forth, or rocking, motion on the device. The back and forth motion may be used alone, or in concert with other features common to sex toys, such as; vibration, compression and suction. The embodiment for men is roughly the shape of a donut (or torus) and sized large-to fit the majority of subjects. The embodiment for men also incorporates geometry allowing a variety of different liners to be inserted. These liners may be made from a number of different materials and provide a variety of sensations and fits. The women's version is cylindrical with roughly spherical ends. The user of the device is prevented from touching, interfering with, or damaging the moving parts-as they are enclosed inside the device. The speed of reciprocation can be adjusted as desired.
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