[ Tim took the vial gingerly, more because of the contents than the fact that it was held in the professor's odd metallic hand - he'd gotten used to that quickly. He handled the small glass tube with a careful respect, turning it over in his hands to study the innocuous-looking pollen inside. ]

Oh... that's an interesting effect. Did it develop it out of self defence?

[ Potential predators would be too busy running off in the throes of desire to eat the plant, after all... as he thought about that, he flushed very faintly. He didn't notice the crack, as tiny and barely visible as it was, because he had his thumb on it when he turned the vial, unknowingly smearing some of the fine pollen directly onto his skin. ]

I guess it would be useful for love potions. How much do you need to breathe in for it to take effect?