Lover's Vengeance

Enchantment (Compulsion) [mind-affecting]
Level: Artificer * 3, Bard * 3, Cleric */Oracle * 3, Sorcerer */Wizard * 3, Warlock * 3
Components: V, M (a piece of jewelry worth at least 100 gp)
Casting Time: 1 minute
Range: touch
Target: creature touched
Duration: up to 1 day/level or until discharged (D)
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)
  You inspire yourself or a lover to a vengeful rage against a chosen enemy, who must be a creature that has wronged you in some way. If cast on you, the next time you are in combat with that enemy, you gain the benefits of a rage spell. If cast on a lover, he or she gains the benefits of a rage spell the next time the lover is in combat against your enemy. This variant of the spell must be cast within 1 hour of an intimate encounter with the target. The rage effect lasts 1 round per level. If the creature that triggers the rage effect is one of your lovers or ex-lovers, the benefits granted by the rage spell double. This spell counts as a contingency spell on the target for the purpose of multiple contingent effects. Worshipers of Calistria are fond of using this spell, and many keep the effect running whenever possible.