This is one of those things you've wondered as a passing thought but never seriously researched. Good to finally find he answer without really looking for it. That's one of the fun things about this community.
The ROK II Player to Player interface allows your Character to make secret meetings with other Characters to create alliances or establish secret relationships. The option to reward each other in certain areas is offered: Devious, Sensual, Romantic, Friendship, Chivalry and the Art of War.