Obviously sexy without trying. Same as Apparently Sexy. Effortless seduction. Unaware of the power of your sexiness.
Janet: That dress is so cute on you.
Kate: I want to wear it to work, but why do I feel like it's not appropriate. (looking down at her accidental cleavage) So dumb.
Janet: Right. CLEARLY you're a woman.
Kate: Totally. Accidental Sexy...the story of my life.