High key? A really good massage would have Alexandra moaning
Imagine a love interest who isn't together with Alexandra yet giving her a massage and all they (and anybody else who's too close) hears is, "Right there," and "Harder," paired with pleasured gasps and groans
Heaven forbid one the companions like Varric or Bull overhears
Alexandra and her lover-to-be will never live it down
When it's offered, she thinks its just a joke, and accepts back with amusement and teasing to her voice. When the person is serious, Alexandra turns a faint scarlet. She is uncomfortable with her own body, from the scars from battle and things she regrets doing when she was younger, so it has to be someone she trusts - like Leliana. When she does gasps or moans, she would apologize and try to keep quiet.