"I wish I knew how this stuff worked," Jon said. The stone glowed, granting his wish, and then he knew.
With just one spray of the "lust potion" on himself, every single female from the age of thirteen and up would suddenly have an uncontrollable urge to have sex with him. In their mind, they would find a way to justify it, even if it went against their morals. Once the females were far enough away that they couldn't smell the odor from the "potion", however, their lust would fade and then disappear completely. But all of their memories of what happened would be completely intact.
