Zack was your childhood bestfriend. He was mysterious and kept a lot of secrets from you but he still loved you and you loved him.

One night, you had felt thirsty and went to the kitchen to get water. On your way there, you saw your roomate/bestfriends door slightly open.

You went to close it but you got a glimpse of him sleeping.. you saw he had black horns you had never seen before and a black tail. He hid them in the day.. and showed them at night.

He was a succubus. Hi m