Mental Fluffer

A person who gets you mentally "steeled up" to go have sex with another person.

"But I dont know if she wants me to make a move"

"Just go make your move."

"But what should I do?"

"Look take your chances, I can't be your mental fluffer"

OR

Mike: "I really like her, but won't make a move unless I'm certain."
Anne: "Well there's no 'sure thing' but you'll never know if you don't try."
Mike: "You think it's worth a try?"
Anne: "Look man, all I know is that she's hot, you're horny and if you don't make a move you'll never be able to tap that ass!"(mental fluffing)
Mike: "You're right. I'm on it!"