O_O
She isn't a whore, she just happens to give off such a bad impression to the people who play the game because her sexual activities overshadow her loyalty to her kingdom, and the whole world. Besides, whores have no shame in what they do, right? Lachesis does.
Actually, she is.
She cheats on Beowulf for Fin. Yeah, she is a whore.
That's why we like her so much.