Ships passing in the night

[Vania]

A sexual act involving two [consenting] adults that advances masturbation to the [pinnacle] of possible techniques.
In order to perform this act, each participant must sit on their non-dominant hand until normal sensation subsides and then commence to pleasure the genitals of the other participant.
Correct execution of this [artful] technique delivers the sensation of being twiddled by somebody else, by somebody else, by somebody else and by somebody else.