Her eyes widen and she steps even closer, steadied by his arm, but also unarguably crossing the line between 'normal interpersonal distance' and 'entirely in his space'. It looks a bit like she is trying to prevent icky muggle contamination by stepping close to all the amazing blood purity he represents, and that makes it more than a little funny. We––"

She is fully taking in her surroundings now, the shop not far from them, cars, streetlights. What, by Merlin's sodding testicles, had they taken to think this was even remotely okay?

"Did we obliviate each other over this?"

Alright, maybe it's the sudden nervousness, or the shock, but she is genuinely laughing at that. She isn't going to laugh tomorrow, but as of right now, she is nowhere near a state of mind to fully judge herself for the stupidity of it all.