*Getting someone turned on, I dunno, if you don't use anything aside from your charm, that's sort of fair, isn't it. It's sort of the point.*
The person still has one's faculties and free will then , I suppose that's the difference. Everyone has the freedom to make decisions, good or bad, and be convinced or swayed by arguments, but I suppose the difference between persuasion/temptation and force/coercion is allowing the subject the use of his/her faculties to decide and the chance to say no.