Corrupt a lesser noble house of humans

"The human pests rely on their nobles to administer to and lead them. If they fall, their lands will descend into chaos. Then you and the other incubus and succubus will take their place and lead the human lands to their doom.", your Master said with a gleam of hatred to his voice, "You will infiltrate one of their noble houses and drive it to ruin through rivalry, **** and decadence. Do this and you will be rewarded. Fail and you will cease to exist." Master said with a finality to his words.

You rise and smile. You're gonna enjoy turning those weak humans against each other and fucking a few of them along the way. Your dick stiffens at the thought, growing to be about 9 inches long and quite thick.

Your Master and Uldar leave you to find your way to the armoury. You walk for hours through long dark tunnels until finally searching your memories and finding the route. Once you arrive, you're greeted by a goblin. Even by goblin standards, he's ugly, his long nose having been sliced off to the bone with snot leaking out of it. He gives you a pair of dark brown pants and elegant leather boots along with a simple but elegant purple jacket and white shirt. You fold away your wings and dress, but find it hard to keep your pants around your waist. The goblin comes up to you carrying a belt with a pair of knives already buckled to them. You accept them and are now able to keep your pants on. The knives are fairly short, only the length of your finger and very thin. They even lack a proper cutting edge, instead having four slightly sharp sides all leading out to a razor sharp point. You but them back in their sheaths and turn to the goblin.

"Is there anything else you have for me, goblin?", you ask. The goblin simply gives you a thick brown cloak with a large hood and simple broach to keep it closed.

You put it on and ponder how you're supposed to get to the nobles from here. But then you remember the magic in you. You dash out of the window, becoming like smoke only to take form outside. You use this form in short bursts to move straight out of your Master's great fortress. Once outside, you remove your jacket and spread your wings, taking flight...