Chris: I wish for Piper and Leo to sleep together tonight.
Phoebe: I'm not...
She nods her head while clapping her hands together. They then hear a thud and walk towards it, to see Piper and Leo asleep together
Chris: They're sleeping together! (to Phoebe) You tricked me.
Phoebe: No. You wished for them to sleep together, and they're sleeping together.