A hopelessly romantic Fred x Katherine ficlet

Katherine leaned her forehead against the cold glass of Weasley's Wizard Wheezes. It had been closed since an hour ago. The twins were upstairs playing 3-way Wizard's Chess. They had suggested 4-way, but Katherine needed to be alone for a while.
She couldn't keep recent events out of her head. She was so scared. She still had marks from that night. The night when she was raped by Lucius Malfoy.
She blamed herself. Thoughts-agonizing thoughts-kept going through her head. Why didn't I fight harder? and I should've gone to bed before he could do anything.
Her hands were resting limply at her sides. She could feel a tear fall down her cheek. She couldn't take it. Her virginity was stolen from her. No one's gonna want me, she thought to herself.
Katherine almost jumped when she felt a warm hand take her's from behind. A body was pressed to her's from behind. She could feel warm breath on her neck.
"Kat..." It was Fred. She could just tell by the smallest difference between his and George's voices. "Please...tell me what's wrong. What's been bothering you lately?" He pleaded for an answer.
Katherine turned around and leaned against the large window that was now behind her. She took a shaky breath. "You're not going to want to hear it," she said.
Fred shook his head. "I want to know," he said, using his finger to tilt her head up. He looked at her in a way he never did before. There was a silent plead in his eyes. Accompanied by...love? It looked like it. It made Katherine's heart race. She really did like him.
"Fine," she said. Then she began to hesitantly explain. She told Fred everything that had happened and how she felt about it. Fred listened. The look on his face was a mixture of sadness, pity, and anger.
Once Katherine was finished, Fred sighed and put a hand on her shoulder.
"You really think no one will ever want you?" he asked. His voice sounded hurt. When Katherine nodded, Fred pulled her close and held her gently. He carressed her head. "I still want you. I wouldn't take you any other way," he almost whispered.
Katherine's heart ached with so many pent up emotions. She felt her shoulders shaking as she fought sobs. She couldn't stop the tears from falling.
Fred once again lifted Katherine's chin to make her look at him. Except this time, he didn't say anything. This time, he kissed Katherine. Almost instantly, Katherine felt happier. Something about Fred being so close made her feel carefree. She placed her hands on Fred's shoulders, beginning to kiss back.
All of a sudden, the two of them heard overdramatic gasps. They both blushed and broke apart. They saw Des and George and scowled.
"They have finally gotten together!" Des said breathily, acting as if she would faint. George lightly punched both Fred and Katherine on their arms. "I never thought I'd live to see the day!" George said with sarcastic incredulity. They could make a joke out of anything.
All of them broke into giggles and they went upstairs. The night ended in a marshmallow war over hot chocolate.