This is sounding more and more like a PC and not an NPC.<br/><br/>Which brings up the question of party balance if she is 12th level, even as a short term NPC, throws the whole game balance out of wack. A minion, which is what she basically is, shouldn't be more powerful than the master, otherwise the master would quickly become the minion just because of the relative power levels.<br/><br/>I'm not sure that I would really care to be involved in a party with a 12th level demon in it while the rest of us poor mortals, most of who are male and subject to it's seductive powers, becomes Adrian's errand boys too. I'm not saying that you'd try it, but if the potential of power is there, sometimes it's hard to avoid... and said 12th level "NPC" has a scheme of her own, I'm sure.<br/><br/>The compromise doesn't seem to be that big of a deal... and if this is a short term thing, experience isn't an issue... if it's a long term thing, then adjusted levels comes into play as a succubus is a lot more powerful than the average character in the group.