I'm going to tell my friend I had a sex dream about her
Is that something you feel she needs to know?
I had a dream about her and I want to tell it her face to face
I guess your friend wouldn't mind if you told her that you had sex dream about her. Hope she'll take it sportingly.
She is going to feel so flattered.
I hope flattery is what she feels. Being honest is important in a friendship so maybe she will be glad to know of your attraction to her. On the other hand, if she's in a relationship, you should keep that dream to yourself