Harry would not have complained if she had broken the kiss, particularly if she was going to be making those ridiculously great sounds. She'd be forgiven instantly, he wouldn't even be able to help himself. As for the torturing, he'd get over it and it wouldn't be that hard to do so.
His hands returned to her waist when she broke the kiss, pulling her hips down to meet his more firmly then before. The moment he could do so, his lips returned to her neck, finding the pulse point and trailing his tongue over it before his lips found a new spot on her shoulder.
He could feel the tension in some of her muscles and Harry did his best to alleviate what he could, wanting it to last but also knowing that it wouldn't last as long as they wanted it to. Despite that, he couldn't be too disappointed. They had plenty of time before either one of them had to face the outside world.