tribadism on penis
When two female, andromorph, herm, or maleherm characters rub their pussies against one penis at the same time.
A bit similar to tribadism (even though technically not always tribadism), but always requires three characters.
See also
The following tags are aliased to this tag: pussy_sandwich (learn more).
This tag implicates penis, collaborative_pussyjob, pussy (learn more).