| SlimGauge |
Pathfinder Maps Subscriber
FYI: Infectious Charms is an Arcane Discovery from Pathfinder Player Companion: Magical Marketplace.
EDIT: Spreading the charm is a swift action and must be performed immediately after casting the spell. You only get one swift action per turn. Ergo, you can affect only the original target and one other (unless you cast the original spell as a swift action, in this case you have no swift action remaining to spread the charm).