The issue of naturalness, in my opinion, is only significant when considering having children. If you do not intend to have children, then it is not a concern at all. Beauty remains beauty regardless of the means by which it was attained. I am equally attracted to someone who needs to exercise to keep their physique as I am to someone who naturally has the same physique.
If you are planning to have children, it is valuable to disclose this information to be transparent about what to anticipate.