Power Word High-Five
Enchantment (Compulsion)[Mind-Affecting]
Level: Sor/Wiz 2, Bard 2
Components: V
Casting Time: 1 swift action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature within sight
Duration: Permanent until conditions met (see text)
Saving Throw: Will Negates
Spell Resistance: Yes
You cast a spell, binding a creature to perform a high five with a creature of your choice

The subject of this spell must make a will save or give a high five to a creature of your choice. If the creature does not have a hand (or similar appendage) this spell fails. The subject takes a -2 penalty to a random ability score for each hour he does not give the creature a high five.
A Power Word High Five (and all ability score penalties) can be ended by break enchantment, limited wish, remove curse, miracle, or wish.

Leaving next spell open for whoever wants it.