The new update, this site version is not up to date, re-introduces this transformation as a potion you can buy from the whore-house in the second town. It applies a weak version of it, unlike the strong one from quest, but I think weak/strong status will be more elaborated in future version and even be applied over time if staying in any form for too long. Not sure if you can apply the pissed-off maid off of the non-quest tf version, there's still a few things I haven't tested despite beating the game.