George couldn't help but chuckle at the absurdity of the situation, and about Parvati's graceful dive to the floor, but he would never in a thousand years admit to that. He had been quite startled by Ginny's entrance, he'd been rather enjoying the quiet moment and the excitement of where it might lead. Ah well.
Smiling a little, he pushed himself up to sitting and smoothed his hair down. Goodness it was warm in here. "We just didn't expect you so soon," he filled in where Parvati trailed off.
So this was the moment where Ginny would find out. At first it had been a secret, yes, back when the encounters had been just fun. There was no shame, but it was fun having something between them that only knew about. And then things had moved forward, and it was just easier not to say anything than to deal with people possibly gushing with excitement for him. He was not a fan of gushing.