A double-ended dildo, straight or curved, used to penetrate two people simultaneously.

a scene featuring a long, double-ended dildo, generally used to penetrate two women simultaneously, as they grind toward each other.

A dildo with two rounded or penis-shaped ends. They are intended for use between two people, or, in the case of the flexible ones, for a woman who wants to use the same toy to stimulate her anus and vagina at the same time.