Arya stopped laughing and said to Lith with a smile, "You've seen everything there is to see. Why would I be bothered if you saw it again once, twice or thrice? There's nothing left to hide anyway."
Immortals were crazy!
Lith had such a thought previously when he understood how boring life was for immortals and they sought out entertainment in every possible way. This time, however, he thought about it for a different reason.
Having a long life, there's a lot of experience accumulated and a person's attitude towards certain things also changes. If it were someone else in Arya's place right now, they would be embarrassed about it and would try to quickly hide their private regions after such a realisation.
This would be the best case scenario. The worst would be that the individual would come after Lith's life. However, for someone like Arya who has lived for thousands of years, such a thing wouldn't bother her, and it wasn't enough for her to get embarrassed.
