Beautiful Ward (5e Feat)
From D&D Wiki
Prerequisites: Charisma of 13 or higher
Your looks and charms are so great that they grant you a modicum of protection. When you take this feat, you gain the following benefits:
-Increase your Charisma score by 1, to a maximum of 20.
-Upon selecting this feat, humanoid creatures of the opposite sex make attack rolls against you at disadvantage until you deal damage to them.
-You also gain advantage on Charisma checks made against humanoid creatures of that sex, that is until you deal damage to them.