Your Charisma score increases by 2, and your Dexterity score increases by 1.

 Succubi and incubi mature at the same rate as humans, though tend to live as long as they continue to feast on souls periodically.

 Due to their fiendish natures, succubi often tend toward evil alignments. Neutral or good succubi are extremely rare, but not unheard of. They have no particular tendency toward or against lawful or chaotic alignments.

Succubi are shapeshifters; however, in general, they are similar in size to most other humanoid races. Your size is Medium.

Thanks to your fiendish heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. Thanks to your heritage, your darkvision is unusual: everything you see in darkness is a shade of deep red.

Some fiends enjoy manipulating their prey, while others prefer to seduce them into an early grave. You have proficiency in either the Persuasion or the Deception skill.

Your base walking speed is 30 feet.

 Your creature type is considered to be both Fiend and Humanoid, and you are considered to have the Shapechanger tag. Additionally, you are vulnerable to radiant damage.

 You walk amongst everyday folk like you are one of them. You can cast a fiendishly altered version of disguise self without expending a spell slot. Instead of its normal duration, it lasts until you are able to concentrate on it as if it was a spell or until you dismiss the illusion

 You have a pair of wings that give you a flying speed of 30 feet. You cannot use this fly speed if you are wearing medium or heavy armor or if your current form granted by your shapechanger trait does not have wings.

Your kisses are cursed , and when kissed, a willing or charmed target must make a CON saving throw, on a failed save the target take 1d8 (at lvl 6 4d8, at lvl 9 6d8)Necrotic damege, you also heal the same amount of health.

You can speak, read, and write Common and Infernal.