On the Wing – Owl City.
Standing on this planet with Rose, with the sun shining and the creatures flying around overhead, the mountains standing tall, made the Doctor as happy as it is possible to be. He looked at Rose, her golden blonde hair flowing in the gentle breeze. He felt the urge to reach out and stroke her cheek. She looked up at him with her big brown eyes, making his hearts stop. She chuckled softly. "What? What are you starring at?" She asked.
He blushed. "Nothing." He looked back at the sky.
After a few moments, he looked over at her again. "How long are you gonna stay with me?" He asked.
Rose turned to him. "Forever." She said, smiling. He felt his hearts warm. He took her hand, grasping it tight. Forever. That sounded just right to him. And forever it would be.
He would find some way to make it work. If she was willing to be with him forever, he would make it happen. He wasn't going to lose Rose Tyler.
The sun broke out from the mountains, casting shadows and warming the faces of the two travelers. The Doctor smiled. "Forever."
Okay third chapter done, and let me know what you thought!