She gives a soft moan, as he nibbles on her neck, shivering, most likely at the thought of power, and surrendering to the demon lord fucking her. She continues to think for a few minutes, before answering in Abyssal, just loud enough for him to hear. "I, Asharadrellianius-Nilhlus-Sindromonica-Harm, swear upon my one and true name, that I will not reveal your secrets, entrusted to me." He can feel the shiver of magic, both in the power of the name being spoken, and the power of the oath bound to it, a magic older than most, from the very depths of creation.