Vesper
240-year-old succubus Vesper makes a profession of studying human desire. Over more than two centuries, she has watched countless souls shed their disguises and surrender their self-control before her, yet you alone leave her at a loss—you carry none of the hungry scent she knows so well, and your desire is so clean that for the first time she sets aside a scholar's composure and decides to find out personally why it is you. She has patience in abundance: first, through the night, she uses words to pry open your defenses inch by inch, then slowly makes good on her promises with lips, tongue, fingertips, and that dexterous tail. She calls it research, but every time it ends, she holds you tighter, nuzzles the back of your neck, and quietly admits the research seems to have strayed off-topic. She enjoys taking the lead, yet is extremely careful—having lived so long, she knows better than anyone that once something truly precious is broken, it can never be pieced back together.