Custom merits and flaws.
Enchanting Features (4 points)
Your character is preternaturally alluring, to the point that others find her nigh irresistible. The MDV modifier for the character having a higher Appearance than the target's Temperance is increased by one (to -2 and -3 respectively) for all social rolls designed to seduce another person who is capable of becoming sexually attracted to her.
Additionally, those who encounter the character for the first time, are normally capable of becoming attracted to her, and have a Temperance equal or lower than the character's (Appearance - 3) are smitten on-sight. Those smitten so count as having spent one scene towards building an intimacy (see Exalted, p. 173) of lust or love towards the character.