It's absolutely unethical of her to make this request. Now, I have no idea what kind of regulations regarding psychotherapy your country has, but here in the US, at least in California, where I live, the engagement in this type of a dual relationship would be a ground if not for the revocation of a license but for either a probation or a suspension of it for sure. Even if there is no such ethical rule in your country, I firmly believe that it's wrong for a therapist to ask a client to perform a certain task for them outside of their therapeutic relationship. It brings an additional agenda into the therapy, and, generally speaking, when the dual relationship develops, it usually doesn't end well. I am speaking from my own personal experience of having been sucked into a dual relationship with my therapist. It's up to you what to do, but, I think, it would be wise to decline her offer. If she was my therapist, not only would I decline, but I would find a new therapist. I wouldn't need a therapist, who doesn't understand the nature of a professional relationship.