HT beat me to the punch on this one. He's my brother from another mother.

Being tied to a bed (spreadeagle) and teased by a long-haired woman is my ultimate fantasy. A bonus would be to have her sit on your face while she swings her long hair back and forth across your cock, or just lets her long hair pool there. She could do this leaning forward or backwards. If you want to get fancy, she could tie the ends of her hair around the root of your cock and pull on it as she sits on your face and you eat her.

I don't think you said when this month of heaven with your girlfriend and her hair are happening, but we'd love some updates!