This really is a lovely story and I'm glad that you took the time to sit down and put it on paper(?)...well, you know what I mean.
Anyway - it's fun to see the two people we like best becoming the couple that we know they can be, during such a festive and important time. In particular, I liked very much the ice-skating and how her unfortunate fall really precipitated their kiss. That was a particularly nice touch.
You wrote:
"He felt Hermione draw back slightly in surprise, but he followed her and refused to lose contact with her warm lips. He slid one hand behind her neck and into her hair and felt her hands creep up to his shoulders. Encouraged, he parted his lips and even as he was about to touch his tongue to her mouth, asking to be let in, her hands flew up and tangled in his hair as she deepened the kiss."
That was as nice a description of their first kiss as anything I've read...and you should be pleased that it came out so well. Not many writers get it so 'right'
I look forward to your next chapter!
Regards,
the_scribbler