When three men work together in a cooperative sexual act where two men create a common hand-vagina (referred to as the "rig") and allow the third man (referred to as the "Jimmy") to insert his penis into their co-created hand-vagina.

In some cases, the hand vagina can be fucked by one of the two participating hand-vagina creators.

In a third (untested case), the two hand-vagina creators can alternate fucking the hand-vagina in a rhythmic and sexual motion.

In certain environments, such as the Ménage à trois you can encounter the rare and unseen co-ed Jennyrig; the co-ed Jennyrig is when two women co-create the hand-vagina and the man inserts his penis into the women's hands, eventually climaxing (hopefully).