First off, yes, the vibe can absolutely be used for double penetration play. The silky, curvy little swells pop easily and very pleasurably into place in front and around back. However! That's just the tip of the iceberg, so to speak. You can put one or both of those super smooth ears to very good use or you can try popping one inside and letting the other rumble and throb against your outer sweet spots.
However you choose to play with the vibe, you'll reap the benefits of nine super powered modes of steady, pulsating and escalating vibration throbbing through each stem. A button on the vibe activates and varies vibration, but you can also put control in the hand of a partner thanks to an included wireless remote.