Double Penetration
Also known as a strapless strap on
or vibrating double dildo, a double ended vibrator is a couple's sex
toy. It’s worn by one partner (usually a woman) while the vibrating
shaft is used on the other partner. The advantage over a double ended
dildo is that double ended vibrators add extra sensations for the
receiver, and the giver gets some extra some pleasure through the
vibrations too.